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KeelingCurve.html
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KeelingCurve.html
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<?xml version="1.0" encoding="UTF-8"?>
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8">
<meta name="Author" content="Leslie Bondaryk" />
<meta name="Owner" content="Pearson" />
<meta name="Copyright" content="Copyright (c) 2013 Pearson. All rights reserved." />
<meta content="width=device-width, initial-scale=1.0" name="viewport" />
<meta content="Carmen Santiago, Demo Book" name="description" />
<title class="setTitle"></title>
<!-- bootstrap_plus.css contains styling for the dropdown menu and other common core styles -->
<link href="css/bootstrap_plus.css" rel="stylesheet" media="screen">
<!-- widgets.css contains styling for the interactive brix -->
<link href="css/widgets.css" rel="stylesheet">
<!-- eCourse-master.css contains styling for all the navigation -->
<link href="css/eCourse-master.css" rel="stylesheet" media="screen">
<!-- content_styles.css contains styling for the narrative layout and responsive design -->
<link href="css/content_styles.css" rel="stylesheet" media="screen">
</head>
<body>
<div class="container">
<div class="span12 lc_ec_page">
<section class="lc_ec_minorMajor lc_ec_pageInner">
<div class="lc_ec_content">
<h2 class="lc_ec_bHead"><span class='number setId'></span>
<span class="setTitle"></span>
</h2>
<div class="lc_ec_leading">
<p> In 1958, a scientist from Scripps Institution of Oceanography in San Diego, CA, named Dave Keeling started measuring carbon dioxide in the atmosphere. He wanted a pollution-free sample so he went to the top of Mauna Loa in Hawaii. Every month he took a samples of the air. After only two years he noticed some interesting things about his data. The amount of CO2 in the air was highest in the spring (May) and lowest in the fall (October). He correctly reasoned that this Annual Cycle is due to plants on land.
</p>
<p>Trees, and especially the leaves on trees, are made from carbon dioxide taken from the air. All spring, summer and fall, trees are making new leaves and pulling CO2 out of the atmosphere. In the fall, these leaves fall to the ground where they rot and the carbon in them is returned back to atmosphere. CO2 in the air goes down in the summer as the trees grow and then goes back up in the winter as the leaves rot. There are enough plants on land to change the total amount of CO2 in the air every year! </p>
<p>The other thing that Keeling discovered was that there was more CO2 in the air each year than there was in the previous year:
<div id="dates"></div></p>
</div>
<div class="lc_ec_trailing">
<div id="graph0"></div>
</div>
</div>
</section>
<section class="lc_ec_fiftyFifty lc_ec_pageInner">
<div class="lc_ec_content">
<h2 class="lc_ec_bHead">Trend in CO<sub>2</sub> concentration</h2>
<div class="lc_ec_leading">
<p> The trend Keeling found is still continuing; in fact, the yearly increase is getting larger – it is twice as big today (2013) as it was when he started taking measurements 55 years ago.
</p>
<p>Here is a map of the world-wide sampling network for atmospheric carbon dioxide.</p>
<div id="map0"></div>
<p>Click on any of the closed symbols (red circles, blue squares, or green triangles) to see the actual monthly data of atmospheric CO2 recorded at that site. The red circles are locations where a person opens a flask to take a discrete air sample. The flask is sealed and mailed to Colorado, where the concentration of CO2 in the flask is determined. The blue squares are the 4 permanent observatories, where CO2 is recorded continuously by a machine. The green triangles are the “Tall Tower” measurements that are also made continuously.</p>
</div>
<div class="lc_ec_trailing">
<p>Select from among the four sample sites shown with bullets on the map to see the historical data from that site.</p>
<div id="graph1"></div>
<p>NOAA ESRL Carbon Cycle operates 4 measurement programs. Semi-continuous measurements are made at 4 baseline observatories, a few surface sites, and from tall towers. Discrete surface and aircraft samples are measured in Boulder, CO. Presently, atmospheric carbon dioxide, methane, carbon monoxide, hydrogen, nitrous oxide, sulfur hexafluoride, the stable isotopes of carbon dioxide and methane, and halocarbon and volatile organice compounds are measured. Contact: Dr. Pieter Tans, NOAA ESRL Carbon Cycle, Boulder, CO. http://www.esrl.noaa.gov/gmd/ccgg/</p>
</div>
</div>
</section>
<section class="lc_ec_minorMajor lc_ec_pageInner">
<div class="lc_ec_content">
<h2>Analyzing CO<sub>2</sub> data</h2>
<div class="lc_ec_leading">
<p> Here is a table of the Barrow, AK station data between 1972 and 1974.</p>
<div id="tableData"></div>
<p id="lowMonth"></p>
</div>
<div class="lc_ec_trailing">
<div id="graph2"></div>
<div id="avgDecrease"></div>
<div id="avgIncrease"></div>
<div id="avgYearly"></div>
</div>
</div>
</section>
<section class="lc_ec_majorMinor lc_ec_pageInner">
<div class="lc_ec_content">
<h2 class="lc_ec_bHead">Compare CO<sub>2</sub> concentrations at different locations</h2>
<div class="lc_ec_leading">
<p> Let's compare the data from the four permanent observing networks.</p>
<div id="graphComp"></div>
</div>
<div class="lc_ec_trailing">
<p>Determine the annual growth rate for each station between: 1985 and 1990, 1990 and 1995, 1995 and 2000, 2005 and 2010 by determining the annual mean value in each of these years for each of the stations, and then dividing by the number of years (5 in each case).</p>
<div id="compTable"></div>
</div>
</div>
</section>
</div>
</div>
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var iceFloe = [
{x: "1957 9" , y: 306.78 },
{x: "1957 10" , y: 311 },
{x: "1957 11" , y: 314 },
{x: "1958 1" , y: 316 }
];
var maunaLoa = [
{x: "1958/3", y: 311.7},
{x: "1958/4", y: 313 },
{x: "1958/5", y: 314 },
{x: "1958/7", y: 313 },
{x: "1958/8", y: 312 },
{x: "1958/9", y: 311 },
{x: "1958/10", y: 310.5},
{x: "1958/11", y: 310 },
{x: "1958/12", y: 311 },
{x: "1959/1", y: 312 },
{x: "1959/2", y: 312.5 },
{x: "1959/3", y: 313 },
{x: "1959/4", y: 314.7 },
{x: "1959/5", y: 315 },
{x: "1959/6", y: 314.8 },
{x: "1959/7", y: 313 },
{x: "1959/8", y: 311 },
{x: "1959/9", y: 310.5 },
{x: "1959/10", y: 310 },
{x: "1959/11", y: 311.5 },
{x: "1959/12", y: 313.2 },
{x: "1960/1", y: 313.8 },
{x: "1960/2", y: 314.2 },
{x: "1960/3", y: 315.7 },
];
var aircraftHigh = [
{x: "1958 9", y: 310 },
{x: "1958 10", y: 311 },
{x: "1959 1", y: 313 },
{x: "1959 2", y: 314 },
{x: "1959 3", y: 316.5 },
{x: "1959 5", y: 317.7 },
{x: "1959 6", y: 314 },
{x: "1959 8", y: 311 },
{x: "1959 9", y: 311.5 },
{x: "1959 10", y: 312 },
{x: "1959 11", y: 313 },
{x: "1959 12", y: 314 },
{x: "1960 1", y: 315 },
{x: "1960 2", y: 315 },
];
var aircraftLow = [
{x: "1959 6", y: 314 },
{x: "1959 8", y: 308 },
{x: "1959 9", y: 311 },
{x: "1959 10", y: 313 },
{x: "1959 11", y: 313.8},
{x: "1959 12", y: 315 },
{x: "1960 1", y: 317 },
];
var barrow = [
{x: " 1971 5 ", y: 332.19 },
{x: " 1971 6 ", y: 330.33 },
{x: " 1971 7 ", y: 323.78 },
{x: " 1971 8 ", y: 317.71 },
{x: " 1971 9 ", y: 318.74 },
{x: " 1971 10 ", y: 322.79 },
{x: " 1971 11 ", y: 327.23 },
{x: " 1971 12 ", y: 331.05 },
{x: " 1972 1 ", y: 333.48 },
{x: " 1972 2 ", y: 334.11 },
{x: " 1972 3 ", y: 334.08 },
{x: " 1972 4 ", y: 334.5 },
{x: " 1972 5 ", y: 335.5 },
{x: " 1972 6 ", y: 333.51 },
{x: " 1972 7 ", y: 324.91 },
{x: " 1972 8 ", y: 318.77 },
{x: " 1972 9 ", y: 321.86 },
{x: " 1972 10 ", y: 327.09 },
{x: " 1972 11 ", y: 330.5 },
{x: " 1972 12 ", y: 333.37 },
{x: " 1973 1 ", y: 334.68 },
{x: " 1973 2 ", y: 335.32 },
{x: " 1973 3 ", y: 336.43 },
{x: " 1973 4 ", y: 336.95 },
{x: " 1973 5 ", y: 336.53 },
{x: " 1973 6 ", y: 334.27 },
{x: " 1973 7 ", y: 327.85 },
{x: " 1973 8 ", y: 322.3 },
{x: " 1973 9 ", y: 323.48 },
{x: " 1973 10 ", y: 328.37 },
{x: " 1973 11 ", y: 331.92 },
{x: " 1973 12 ", y: 334.92 },
{x: " 1974 1 ", y: 337.08 },
{x: " 1974 2 ", y: 337.65 },
{x: " 1974 3 ", y: 337.78 },
{x: " 1974 4 ", y: 337.57 },
{x: " 1974 5 ", y: 338.69 },
{x: " 1974 6 ", y: 338.39 },
{x: " 1974 7 ", y: 330.95 },
{x: " 1974 8 ", y: 323.23 },
{x: " 1974 9 ", y: 324.11 },
{x: " 1974 10 ", y: 329.3 },
{x: " 1974 11 ", y: 333.08 },
{x: " 1974 12 ", y: 335.66 },
{x: " 1975 1 ", y: 336.63 },
{x: " 1975 2 ", y: 336.46 },
{x: " 1975 3 ", y: 336.42 },
{x: " 1975 4 ", y: 336.6 },
{x: " 1975 5 ", y: 336.29 },
{x: " 1975 6 ", y: 334.34 },
{x: " 1975 7 ", y: 329.3 },
{x: " 1975 8 ", y: 324.58 },
{x: " 1975 9 ", y: 324.84 },
{x: " 1975 10 ", y: 329.31 },
{x: " 1975 11 ", y: 333.3 },
{x: " 1975 12 ", y: 336.22 },
{x: " 1976 1 ", y: 337.44 },
{x: " 1976 2 ", y: 337.79 },
{x: " 1976 3 ", y: 338.43 },
{x: " 1976 4 ", y: 338.8 },
{x: " 1976 5 ", y: 337.99 },
{x: " 1976 6 ", y: 335.56 },
{x: " 1976 7 ", y: 330.41 },
{x: " 1976 8 ", y: 324.73 },
{x: " 1976 9 ", y: 325.19 },
{x: " 1976 10 ", y: 329.27 },
{x: " 1976 11 ", y: 333.2 },
{x: " 1976 12 ", y: 336.16 },
{x: " 1977 1 ", y: 337.63 },
{x: " 1977 2 ", y: 337.69 },
{x: " 1977 3 ", y: 338.35 },
{x: " 1977 4 ", y: 339.33 },
{x: " 1977 5 ", y: 339.65 },
{x: " 1977 6 ", y: 337.62 },
{x: " 1977 7 ", y: 332.06 },
{x: " 1977 8 ", y: 326.54 },
{x: " 1977 9 ", y: 326.4 },
{x: " 1977 10 ", y: 330.05 },
{x: " 1977 11 ", y: 334.53 },
{x: " 1977 12 ", y: 337.36 },
{x: " 1978 1 ", y: 339.87 },
{x: " 1978 2 ", y: 341.08 },
{x: " 1978 3 ", y: 341 },
{x: " 1978 4 ", y: 341.07 },
{x: " 1978 5 ", y: 340.95 },
{x: " 1978 6 ", y: 339.33 },
{x: " 1978 7 ", y: 333.12 },
{x: " 1978 8 ", y: 327.13 },
{x: " 1978 9 ", y: 327.44 },
{x: " 1978 10 ", y: 332.58 },
{x: " 1978 11 ", y: 337.21 },
{x: " 1978 12 ", y: 338.9 },
{x: " 1979 1 ", y: 339.99 },
{x: " 1979 2 ", y: 341.18 },
{x: " 1979 3 ", y: 342.05 },
{x: " 1979 4 ", y: 342.35 },
{x: " 1979 5 ", y: 343.27 },
{x: " 1979 6 ", y: 341.77 },
{x: " 1979 7 ", y: 333.54 },
{x: " 1979 8 ", y: 327.12 },
{x: " 1979 9 ", y: 328.56 },
{x: " 1979 10 ", y: 333.95 },
{x: " 1979 11 ", y: 337.52 },
{x: " 1979 12 ", y: 338.79 },
{x: " 1980 1 ", y: 341.13 },
{x: " 1980 2 ", y: 342.76 },
{x: " 1980 3 ", y: 343.48 },
{x: " 1980 4 ", y: 344.65 },
{x: " 1980 5 ", y: 345.37 },
{x: " 1980 6 ", y: 342.92 },
{x: " 1980 7 ", y: 337.26 },
{x: " 1980 8 ", y: 332.58 },
{x: " 1980 9 ", y: 332.8 },
{x: " 1980 10 ", y: 337.16 },
{x: " 1980 11 ", y: 340.41 },
{x: " 1980 12 ", y: 343.14 },
{x: " 1981 1 ", y: 344.93 },
{x: " 1981 2 ", y: 345.5 },
{x: " 1981 3 ", y: 345.63 },
{x: " 1981 4 ", y: 346.14 },
{x: " 1981 5 ", y: 346.68 },
{x: " 1981 6 ", y: 343.9 },
{x: " 1981 7 ", y: 336.44 },
{x: " 1981 8 ", y: 331.05 },
{x: " 1981 9 ", y: 333.33 },
{x: " 1981 10 ", y: 338.48 },
{x: " 1981 11 ", y: 342.26 },
{x: " 1981 12 ", y: 344.73 },
{x: " 1982 1 ", y: 346.16 },
{x: " 1982 2 ", y: 347.13 },
{x: " 1982 3 ", y: 347.7 },
{x: " 1982 4 ", y: 347.49 },
{x: " 1982 5 ", y: 347.53 },
{x: " 1982 6 ", y: 345.13 },
{x: " 1982 7 ", y: 339.48 },
{x: " 1982 8 ", y: 333.37 },
{x: " 1982 9 ", y: 333.09 },
{x: " 1982 10 ", y: 337.83 },
{x: " 1982 11 ", y: 342.49 },
{x: " 1982 12 ", y: 345.12 },
{x: " 1983 1 ", y: 346.77 },
{x: " 1983 2 ", y: 347.4 },
{x: " 1983 3 ", y: 347.85 },
{x: " 1983 4 ", y: 348.07 },
{x: " 1983 5 ", y: 348.45 },
{x: " 1983 6 ", y: 346.9 },
{x: " 1983 7 ", y: 340.97 },
{x: " 1983 8 ", y: 334.12 },
{x: " 1983 9 ", y: 334.06 },
{x: " 1983 10 ", y: 340.63 },
{x: " 1983 11 ", y: 345.81 },
{x: " 1983 12 ", y: 347.23 },
{x: " 1984 1 ", y: 349.15 },
{x: " 1984 2 ", y: 350.54 },
{x: " 1984 3 ", y: 350.11 },
{x: " 1984 4 ", y: 349.84 },
{x: " 1984 5 ", y: 350.49 },
{x: " 1984 6 ", y: 348.72 },
{x: " 1984 7 ", y: 341.62 },
{x: " 1984 8 ", y: 335.92 },
{x: " 1984 9 ", y: 337.15 },
{x: " 1984 10 ", y: 341.46 },
{x: " 1984 11 ", y: 344.88 },
{x: " 1984 12 ", y: 348.17 },
{x: " 1985 1 ", y: 349.59 },
{x: " 1985 2 ", y: 349.51 },
{x: " 1985 3 ", y: 350.47 },
{x: " 1985 4 ", y: 351.88 },
{x: " 1985 5 ", y: 352.37 },
{x: " 1985 6 ", y: 350.38 },
{x: " 1985 7 ", y: 343.86 },
{x: " 1985 8 ", y: 337.34 },
{x: " 1985 9 ", y: 338.49 },
{x: " 1985 10 ", y: 344.1 },
{x: " 1985 11 ", y: 347.43 },
{x: " 1985 12 ", y: 349.02 },
{x: " 1986 1 ", y: 350.81 },
{x: " 1986 2 ", y: 352.84 },
{x: " 1986 3 ", y: 353.56 },
{x: " 1986 4 ", y: 353.25 },
{x: " 1986 5 ", y: 353.29 },
{x: " 1986 6 ", y: 350.58 },
{x: " 1986 7 ", y: 343.49 },
{x: " 1986 8 ", y: 338.78 },
{x: " 1986 9 ", y: 341.94 },
{x: " 1986 10 ", y: 347.6 },
{x: " 1986 11 ", y: 350.2 },
{x: " 1986 12 ", y: 352.16 },
{x: " 1987 1 ", y: 353.27 },
{x: " 1987 2 ", y: 353.77 },
{x: " 1987 3 ", y: 354.29 },
{x: " 1987 4 ", y: 354.59 },
{x: " 1987 5 ", y: 355.21 },
{x: " 1987 6 ", y: 353.15 },
{x: " 1987 7 ", y: 346.2 },
{x: " 1987 8 ", y: 340.36 },
{x: " 1987 9 ", y: 341.41 },
{x: " 1987 10 ", y: 345.73 },
{x: " 1987 11 ", y: 349.86 },
{x: " 1987 12 ", y: 353.14 },
{x: " 1988 1 ", y: 355.8 },
{x: " 1988 2 ", y: 357.21 },
{x: " 1988 3 ", y: 357.54 },
{x: " 1988 4 ", y: 358.06 },
{x: " 1988 5 ", y: 357.86 },
{x: " 1988 6 ", y: 354.87 },
{x: " 1988 7 ", y: 348.59 },
{x: " 1988 8 ", y: 343.53 },
{x: " 1988 9 ", y: 345.63 },
{x: " 1988 10 ", y: 351.06 },
{x: " 1988 11 ", y: 355.43 },
{x: " 1988 12 ", y: 358.33 },
{x: " 1989 1 ", y: 359.27 },
{x: " 1989 2 ", y: 358.91 },
{x: " 1989 3 ", y: 360.02 },
{x: " 1989 4 ", y: 360.37 },
{x: " 1989 5 ", y: 359.72 },
{x: " 1989 6 ", y: 358.53 },
{x: " 1989 7 ", y: 350.59 },
{x: " 1989 8 ", y: 342.79 },
{x: " 1989 9 ", y: 344.88 },
{x: " 1989 10 ", y: 351.42 },
{x: " 1989 11 ", y: 356.38 },
{x: " 1989 12 ", y: 359.45 },
{x: " 1990 1 ", y: 360.79 },
{x: " 1990 2 ", y: 361.3 },
{x: " 1990 3 ", y: 361.9 },
{x: " 1990 4 ", y: 361.83 },
{x: " 1990 5 ", y: 361.56 },
{x: " 1990 6 ", y: 357.55 },
{x: " 1990 7 ", y: 349.25 },
{x: " 1990 8 ", y: 344.72 },
{x: " 1990 9 ", y: 346.75 },
{x: " 1990 10 ", y: 352.56 },
{x: " 1990 11 ", y: 356.89 },
{x: " 1990 12 ", y: 360.13 },
{x: " 1991 1 ", y: 361.94 },
{x: " 1991 2 ", y: 361.86 },
{x: " 1991 3 ", y: 362.28 },
{x: " 1991 4 ", y: 362.33 },
{x: " 1991 5 ", y: 362.01 },
{x: " 1991 6 ", y: 360.6 },
{x: " 1991 7 ", y: 354.23 },
{x: " 1991 8 ", y: 347.03 },
{x: " 1991 9 ", y: 348.35 },
{x: " 1991 10 ", y: 355.09 },
{x: " 1991 11 ", y: 358.57 },
{x: " 1991 12 ", y: 360.58 },
{x: " 1992 1 ", y: 362.03 },
{x: " 1992 2 ", y: 362.18 },
{x: " 1992 3 ", y: 362.56 },
{x: " 1992 4 ", y: 362.94 },
{x: " 1992 5 ", y: 362.76 },
{x: " 1992 6 ", y: 360.63 },
{x: " 1992 7 ", y: 353.87 },
{x: " 1992 8 ", y: 347.37 },
{x: " 1992 9 ", y: 348.56 },
{x: " 1992 10 ", y: 353 },
{x: " 1992 11 ", y: 357.06 },
{x: " 1992 12 ", y: 361 },
{x: " 1993 1 ", y: 362.67 },
{x: " 1993 2 ", y: 362.8 },
{x: " 1993 3 ", y: 363.47 },
{x: " 1993 4 ", y: 363.86 },
{x: " 1993 5 ", y: 363.58 },
{x: " 1993 6 ", y: 359.68 },
{x: " 1993 7 ", y: 352.34 },
{x: " 1993 8 ", y: 348.06 },
{x: " 1993 9 ", y: 350.1 },
{x: " 1993 10 ", y: 354.28 },
{x: " 1993 11 ", y: 358.73 },
{x: " 1993 12 ", y: 361.43 },
{x: " 1994 1 ", y: 362.8 },
{x: " 1994 2 ", y: 364.41 },
{x: " 1994 3 ", y: 365.04 },
{x: " 1994 4 ", y: 364.34 },
{x: " 1994 5 ", y: 364.54 },
{x: " 1994 6 ", y: 362.18 },
{x: " 1994 7 ", y: 354.39 },
{x: " 1994 8 ", y: 348.19 },
{x: " 1994 9 ", y: 350.71 },
{x: " 1994 10 ", y: 356.65 },
{x: " 1994 11 ", y: 361.76 },
{x: " 1994 12 ", y: 364.43 },
{x: " 1995 1 ", y: 365.82 },
{x: " 1995 2 ", y: 366.81 },
{x: " 1995 3 ", y: 366.73 },
{x: " 1995 4 ", y: 366.49 },
{x: " 1995 5 ", y: 366.31 },
{x: " 1995 6 ", y: 363.78 },
{x: " 1995 7 ", y: 356.55 },
{x: " 1995 8 ", y: 351.57 },
{x: " 1995 9 ", y: 353.22 },
{x: " 1995 10 ", y: 358.16 },
{x: " 1995 11 ", y: 363.68 },
{x: " 1995 12 ", y: 366.16 },
{x: " 1996 1 ", y: 366.99 },
{x: " 1996 2 ", y: 368.31 },
{x: " 1996 3 ", y: 368.18 },
{x: " 1996 4 ", y: 368.29 },
{x: " 1996 5 ", y: 369.63 },
{x: " 1996 6 ", y: 368.39 },
{x: " 1996 7 ", y: 362.08 },
{x: " 1996 8 ", y: 354.87 },
{x: " 1996 9 ", y: 355.65 },
{x: " 1996 10 ", y: 361.2 },
{x: " 1996 11 ", y: 363.81 },
{x: " 1996 12 ", y: 366.34 },
{x: " 1997 1 ", y: 369.08 },
{x: " 1997 2 ", y: 369.38 },
{x: " 1997 3 ", y: 369 },
{x: " 1997 4 ", y: 369.83 },
{x: " 1997 5 ", y: 370.72 },
{x: " 1997 6 ", y: 368.06 },
{x: " 1997 7 ", y: 359.26 },
{x: " 1997 8 ", y: 354.68 },
{x: " 1997 9 ", y: 357.75 },
{x: " 1997 10 ", y: 362.24 },
{x: " 1997 11 ", y: 365.74 },
{x: " 1997 12 ", y: 368.05 },
{x: " 1998 1 ", y: 369.29 },
{x: " 1998 2 ", y: 370.45 },
{x: " 1998 3 ", y: 371.16 },
{x: " 1998 4 ", y: 371.11 },
{x: " 1998 5 ", y: 371.74 },
{x: " 1998 6 ", y: 369.98 },
{x: " 1998 7 ", y: 362.56 },
{x: " 1998 8 ", y: 357.35 },
{x: " 1998 9 ", y: 360.06 },
{x: " 1998 10 ", y: 364.86 },
{x: " 1998 11 ", y: 369.11 },
{x: " 1998 12 ", y: 373.05 },
{x: " 1999 1 ", y: 374.26 },
{x: " 1999 2 ", y: 373.89 },
{x: " 1999 3 ", y: 374.24 },
{x: " 1999 4 ", y: 374.75 },
{x: " 1999 5 ", y: 375.5 },
{x: " 1999 6 ", y: 372.38 },
{x: " 1999 7 ", y: 364.55 },
{x: " 1999 8 ", y: 359.12 },
{x: " 1999 9 ", y: 360.47 },
{x: " 1999 10 ", y: 365.46 },
{x: " 1999 11 ", y: 371.44 },
{x: " 1999 12 ", y: 373.91 },
{x: " 2000 1 ", y: 375.08 },
{x: " 2000 2 ", y: 375.74 },
{x: " 2000 3 ", y: 375.17 },
{x: " 2000 4 ", y: 375.41 },
{x: " 2000 5 ", y: 376.45 },
{x: " 2000 6 ", y: 373.77 },
{x: " 2000 7 ", y: 365.72 },
{x: " 2000 8 ", y: 360.02 },
{x: " 2000 9 ", y: 361.81 },
{x: " 2000 10 ", y: 366.89 },
{x: " 2000 11 ", y: 370.88 },
{x: " 2000 12 ", y: 373.49 },
{x: " 2001 1 ", y: 375.35 },
{x: " 2001 2 ", y: 376.31 },
{x: " 2001 3 ", y: 376.91 },
{x: " 2001 4 ", y: 377.44 },
{x: " 2001 5 ", y: 377.68 },
{x: " 2001 6 ", y: 375.17 },
{x: " 2001 7 ", y: 366.9 },
{x: " 2001 8 ", y: 361.08 },
{x: " 2001 9 ", y: 363.12 },
{x: " 2001 10 ", y: 368.64 },
{x: " 2001 11 ", y: 373.19 },
{x: " 2001 12 ", y: 376.59 },
{x: " 2002 1 ", y: 378.06 },
{x: " 2002 2 ", y: 378.17 },
{x: " 2002 3 ", y: 378.97 },
{x: " 2002 4 ", y: 379.01 },
{x: " 2002 5 ", y: 378.51 },
{x: " 2002 6 ", y: 376.97 },
{x: " 2002 7 ", y: 370.1 },
{x: " 2002 8 ", y: 363.39 },
{x: " 2002 9 ", y: 365.76 },
{x: " 2002 10 ", y: 371.69 },
{x: " 2002 11 ", y: 375.38 },
{x: " 2002 12 ", y: 377.89 },
{x: " 2003 1 ", y: 379.77 },
{x: " 2003 2 ", y: 381.91 },
{x: " 2003 3 ", y: 382.27 },
{x: " 2003 4 ", y: 381.57 },
{x: " 2003 5 ", y: 382.22 },
{x: " 2003 6 ", y: 379.79 },
{x: " 2003 7 ", y: 371.77 },
{x: " 2003 8 ", y: 366.79 },
{x: " 2003 9 ", y: 368.54 },
{x: " 2003 10 ", y: 373.54 },
{x: " 2003 11 ", y: 378.68 },
{x: " 2003 12 ", y: 382.19 },
{x: " 2004 1 ", y: 382.89 },
{x: " 2004 2 ", y: 382.61 },
{x: " 2004 3 ", y: 382.66 },
{x: " 2004 4 ", y: 383.72 },
{x: " 2004 5 ", y: 384.07 },
{x: " 2004 6 ", y: 379.88 },
{x: " 2004 7 ", y: 371.9 },
{x: " 2004 8 ", y: 366.59 },
{x: " 2004 9 ", y: 368.71 },
{x: " 2004 10 ", y: 373.77 },
{x: " 2004 11 ", y: 378.84 },
{x: " 2004 12 ", y: 381.86 },
{x: " 2005 1 ", y: 383.77 },
{x: " 2005 2 ", y: 385.09 },
{x: " 2005 3 ", y: 385.45 },
{x: " 2005 4 ", y: 385.52 },
{x: " 2005 5 ", y: 385.53 },
{x: " 2005 6 ", y: 383.17 },
{x: " 2005 7 ", y: 376.21 },
{x: " 2005 8 ", y: 369.8 },
{x: " 2005 9 ", y: 372.49 },
{x: " 2005 10 ", y: 378.49 },
{x: " 2005 11 ", y: 382.98 },
{x: " 2005 12 ", y: 385.73 },
{x: " 2006 1 ", y: 386.59 },
{x: " 2006 2 ", y: 387.2 },
{x: " 2006 3 ", y: 387.59 },
{x: " 2006 4 ", y: 387.5 },
{x: " 2006 5 ", y: 388.48 },
{x: " 2006 6 ", y: 387.16 },
{x: " 2006 7 ", y: 378.92 },
{x: " 2006 8 ", y: 372.8 },
{x: " 2006 9 ", y: 376.75 },
{x: " 2006 10 ", y: 382.96 },
{x: " 2006 11 ", y: 385.03 },
{x: " 2006 12 ", y: 387.85 },
{x: " 2007 1 ", y: 389.58 },
{x: " 2007 2 ", y: 388.81 },
{x: " 2007 3 ", y: 389.62 },
{x: " 2007 4 ", y: 390.35 },
{x: " 2007 5 ", y: 389.88 },
{x: " 2007 6 ", y: 386.55 },
{x: " 2007 7 ", y: 378.22 },
{x: " 2007 8 ", y: 373.57 },
{x: " 2007 9 ", y: 376.01 },
{x: " 2007 10 ", y: 380.73 },
{x: " 2007 11 ", y: 385.11 },
{x: " 2007 12 ", y: 388.97 },
{x: " 2008 1 ", y: 391.54 },
{x: " 2008 2 ", y: 392.96 },
{x: " 2008 3 ", y: 393.29 },
{x: " 2008 4 ", y: 393.33 },
{x: " 2008 5 ", y: 393 },
{x: " 2008 6 ", y: 389.31 },
{x: " 2008 7 ", y: 381.79 },
{x: " 2008 8 ", y: 376.56 },
{x: " 2008 9 ", y: 377.48 },
{x: " 2008 10 ", y: 382.21 },
{x: " 2008 11 ", y: 387.03 },
{x: " 2008 12 ", y: 391.62 },
{x: " 2009 1 ", y: 393.01 },
{x: " 2009 2 ", y: 392.76 },
{x: " 2009 3 ", y: 393.66 },
{x: " 2009 4 ", y: 394.6 },
{x: " 2009 5 ", y: 394.16 },
{x: " 2009 6 ", y: 391.58 },
{x: " 2009 7 ", y: 383.82 },
{x: " 2009 8 ", y: 376.49 },
{x: " 2009 9 ", y: 378.94 },
{x: " 2009 10 ", y: 383.92 },
{x: " 2009 11 ", y: 387.68 },
{x: " 2009 12 ", y: 392.32 },
{x: " 2010 1 ", y: 394.32 },
{x: " 2010 2 ", y: 394.15 },
{x: " 2010 3 ", y: 394.93 },
{x: " 2010 4 ", y: 396.14 },
{x: " 2010 5 ", y: 395.69 },
{x: " 2010 6 ", y: 392.5 },
{x: " 2010 7 ", y: 385.46 },
{x: " 2010 8 ", y: 379.86 },
{x: " 2010 9 ", y: 383.26 },
{x: " 2010 10 ", y: 388.22 },
{x: " 2010 11 ", y: 392.76 },
{x: " 2010 12 ", y: 397.05 },
{x: " 2011 1 ", y: 397.76 },
{x: " 2011 2 ", y: 397.51 },
{x: " 2011 3 ", y: 398.47 },
{x: " 2011 4 ", y: 398.85 },
{x: " 2011 5 ", y: 398.25 },
{x: " 2011 6 ", y: 394.53 },
{x: " 2011 7 ", y: 386.05 },
{x: " 2011 8 ", y: 380.09 },
{x: " 2011 9 ", y: 383.67 },
{x: " 2011 10 ", y: 389.65 },
{x: " 2011 11 ", y: 394.6 },
{x: " 2011 12 ", y: 397.57 },
];
var mlo = [
{x: " 1976 7 ", y: 332.3 },
{x: " 1976 8 ", y: 331.04 },
{x: " 1976 9 ", y: 329.67 },
{x: " 1976 10 ", y: 329.33 },
{x: " 1976 11 ", y: 330.47 },
{x: " 1976 12 ", y: 331.97 },
{x: " 1977 1 ", y: 332.76 },
{x: " 1977 2 ", y: 333.1 },
{x: " 1977 3 ", y: 334.08 },
{x: " 1977 4 ", y: 335.78 },
{x: " 1977 5 ", y: 336.49 },
{x: " 1977 6 ", y: 335.96 },
{x: " 1977 7 ", y: 334.64 },
{x: " 1977 8 ", y: 332.31 },
{x: " 1977 9 ", y: 330.66 },
{x: " 1977 10 ", y: 330.55 },
{x: " 1977 11 ", y: 331.72 },
{x: " 1977 12 ", y: 333.74 },
{x: " 1978 1 ", y: 335.17 },
{x: " 1978 2 ", y: 335.78 },
{x: " 1978 3 ", y: 336.69 },
{x: " 1978 4 ", y: 337.76 },
{x: " 1978 5 ", y: 338.01 },
{x: " 1978 6 ", y: 337.57 },
{x: " 1978 7 ", y: 336.17 },
{x: " 1978 8 ", y: 333.89 },
{x: " 1978 9 ", y: 332.19 },
{x: " 1978 10 ", y: 332.2 },
{x: " 1978 11 ", y: 333.24 },
{x: " 1978 12 ", y: 334.64 },
{x: " 1979 1 ", y: 336.11 },
{x: " 1979 2 ", y: 337.2 },
{x: " 1979 3 ", y: 338.5 },
{x: " 1979 4 ", y: 339 },
{x: " 1979 5 ", y: 338.93 },
{x: " 1979 6 ", y: 338.97 },
{x: " 1979 7 ", y: 337.78 },
{x: " 1979 8 ", y: 335.57 },
{x: " 1979 9 ", y: 333.95 },
{x: " 1979 10 ", y: 334.41 },
{x: " 1979 11 ", y: 335.66 },
{x: " 1979 12 ", y: 336.81 },
{x: " 1980 1 ", y: 338.9 },
{x: " 1980 2 ", y: 340.21 },
{x: " 1980 3 ", y: 341.34 },
{x: " 1980 4 ", y: 342.8 },
{x: " 1980 5 ", y: 342.89 },
{x: " 1980 6 ", y: 341.75 },
{x: " 1980 7 ", y: 339.17 },
{x: " 1980 8 ", y: 337.04 },
{x: " 1980 9 ", y: 336.6 },
{x: " 1980 10 ", y: 336.6 },
{x: " 1980 11 ", y: 337.55 },
{x: " 1980 12 ", y: 339.18 },
{x: " 1981 1 ", y: 340.41 },
{x: " 1981 2 ", y: 341.41 },
{x: " 1981 3 ", y: 342.34 },
{x: " 1981 4 ", y: 343.33 },
{x: " 1981 5 ", y: 343.55 },
{x: " 1981 6 ", y: 342.34 },
{x: " 1981 7 ", y: 340.4 },
{x: " 1981 8 ", y: 338.67 },
{x: " 1981 9 ", y: 337.37 },
{x: " 1981 10 ", y: 337.53 },
{x: " 1981 11 ", y: 338.88 },
{x: " 1981 12 ", y: 340.21 },
{x: " 1982 1 ", y: 341.1 },
{x: " 1982 2 ", y: 341.99 },
{x: " 1982 3 ", y: 343.03 },
{x: " 1982 4 ", y: 343.82 },
{x: " 1982 5 ", y: 343.76 },
{x: " 1982 6 ", y: 342.87 },
{x: " 1982 7 ", y: 341.47 },
{x: " 1982 8 ", y: 339.26 },
{x: " 1982 9 ", y: 337.33 },
{x: " 1982 10 ", y: 337.64 },
{x: " 1982 11 ", y: 339.03 },
{x: " 1982 12 ", y: 340.65 },
{x: " 1983 1 ", y: 341.96 },
{x: " 1983 2 ", y: 342.37 },
{x: " 1983 3 ", y: 343.12 },
{x: " 1983 4 ", y: 345.12 },
{x: " 1983 5 ", y: 346.09 },
{x: " 1983 6 ", y: 345.3 },
{x: " 1983 7 ", y: 343.52 },
{x: " 1983 8 ", y: 341.2 },
{x: " 1983 9 ", y: 339.78 },
{x: " 1983 10 ", y: 339.98 },
{x: " 1983 11 ", y: 341.14 },
{x: " 1983 12 ", y: 342.73 },
{x: " 1984 1 ", y: 343.93 },
{x: " 1984 2 ", y: 344.6 },
{x: " 1984 3 ", y: 345.52 },
{x: " 1984 4 ", y: 346.81 },
{x: " 1984 5 ", y: 347.38 },
{x: " 1984 6 ", y: 346.62 },
{x: " 1984 7 ", y: 345.1 },
{x: " 1984 8 ", y: 342.86 },
{x: " 1984 9 ", y: 341.3 },
{x: " 1984 10 ", y: 341.7 },
{x: " 1984 11 ", y: 343.01 },
{x: " 1984 12 ", y: 343.91 },
{x: " 1985 1 ", y: 344.6 },
{x: " 1985 2 ", y: 345.65 },
{x: " 1985 3 ", y: 346.86 },
{x: " 1985 4 ", y: 347.8 },
{x: " 1985 5 ", y: 348.57 },
{x: " 1985 6 ", y: 348.2 },
{x: " 1985 7 ", y: 346.22 },
{x: " 1985 8 ", y: 343.94 },
{x: " 1985 9 ", y: 342.83 },
{x: " 1985 10 ", y: 342.87 },
{x: " 1985 11 ", y: 344.05 },
{x: " 1985 12 ", y: 345.31 },
{x: " 1986 1 ", y: 346.1 },
{x: " 1986 2 ", y: 346.62 },
{x: " 1986 3 ", y: 347.69 },
{x: " 1986 4 ", y: 349.28 },
{x: " 1986 5 ", y: 349.94 },
{x: " 1986 6 ", y: 349.07 },
{x: " 1986 7 ", y: 347.06 },
{x: " 1986 8 ", y: 345.26 },
{x: " 1986 9 ", y: 344.05 },
{x: " 1986 10 ", y: 343.81 },
{x: " 1986 11 ", y: 345.37 },
{x: " 1986 12 ", y: 346.84 },
{x: " 1987 1 ", y: 347.51 },
{x: " 1987 2 ", y: 348.26 },
{x: " 1987 3 ", y: 349.26 },
{x: " 1987 4 ", y: 350.75 },
{x: " 1987 5 ", y: 351.77 },
{x: " 1987 6 ", y: 351.4 },
{x: " 1987 7 ", y: 349.62 },
{x: " 1987 8 ", y: 347.48 },
{x: " 1987 9 ", y: 346.45 },
{x: " 1987 10 ", y: 346.81 },
{x: " 1987 11 ", y: 348.11 },
{x: " 1987 12 ", y: 349.42 },
{x: " 1988 1 ", y: 350.28 },
{x: " 1988 2 ", y: 351.35 },
{x: " 1988 3 ", y: 352.52 },
{x: " 1988 4 ", y: 353.72 },
{x: " 1988 5 ", y: 354.35 },
{x: " 1988 6 ", y: 353.83 },
{x: " 1988 7 ", y: 352.34 },
{x: " 1988 8 ", y: 350.12 },
{x: " 1988 9 ", y: 348.78 },
{x: " 1988 10 ", y: 349.12 },
{x: " 1988 11 ", y: 350.14 },
{x: " 1988 12 ", y: 351.6 },
{x: " 1989 1 ", y: 352.74 },
{x: " 1989 2 ", y: 353.15 },
{x: " 1989 3 ", y: 353.96 },
{x: " 1989 4 ", y: 355.54 },
{x: " 1989 5 ", y: 356.16 },
{x: " 1989 6 ", y: 355.46 },
{x: " 1989 7 ", y: 354 },
{x: " 1989 8 ", y: 351.38 },
{x: " 1989 9 ", y: 349.51 },
{x: " 1989 10 ", y: 349.9 },
{x: " 1989 11 ", y: 351.53 },
{x: " 1989 12 ", y: 352.87 },
{x: " 1990 1 ", y: 354.02 },
{x: " 1990 2 ", y: 355.11 },
{x: " 1990 3 ", y: 355.9 },
{x: " 1990 4 ", y: 356.7 },
{x: " 1990 5 ", y: 357.17 },
{x: " 1990 6 ", y: 356.32 },
{x: " 1990 7 ", y: 354.53 },
{x: " 1990 8 ", y: 352.44 },
{x: " 1990 9 ", y: 351.21 },
{x: " 1990 10 ", y: 351.52 },
{x: " 1990 11 ", y: 353.1 },
{x: " 1990 12 ", y: 354.66 },
{x: " 1991 1 ", y: 355.23 },
{x: " 1991 2 ", y: 356.1 },
{x: " 1991 3 ", y: 357.54 },
{x: " 1991 4 ", y: 358.67 },
{x: " 1991 5 ", y: 359.34 },
{x: " 1991 6 ", y: 358.28 },
{x: " 1991 7 ", y: 355.86 },
{x: " 1991 8 ", y: 353.82 },
{x: " 1991 9 ", y: 352.42 },
{x: " 1991 10 ", y: 352.53 },
{x: " 1991 11 ", y: 354 },
{x: " 1991 12 ", y: 355.44 },
{x: " 1992 1 ", y: 356.64 },
{x: " 1992 2 ", y: 357.29 },
{x: " 1992 3 ", y: 358.12 },
{x: " 1992 4 ", y: 359.17 },
{x: " 1992 5 ", y: 359.94 },
{x: " 1992 6 ", y: 359.49 },
{x: " 1992 7 ", y: 357.17 },
{x: " 1992 8 ", y: 355.02 },
{x: " 1992 9 ", y: 353.69 },
{x: " 1992 10 ", y: 353.56 },
{x: " 1992 11 ", y: 354.63 },
{x: " 1992 12 ", y: 355.97 },
{x: " 1993 1 ", y: 356.81 },
{x: " 1993 2 ", y: 357.39 },
{x: " 1993 3 ", y: 358.25 },
{x: " 1993 4 ", y: 359.56 },
{x: " 1993 5 ", y: 360.47 },
{x: " 1993 6 ", y: 359.69 },
{x: " 1993 7 ", y: 357.74 },
{x: " 1993 8 ", y: 355.54 },
{x: " 1993 9 ", y: 353.84 },
{x: " 1993 10 ", y: 354.2 },
{x: " 1993 11 ", y: 355.41 },
{x: " 1993 12 ", y: 356.89 },
{x: " 1994 1 ", y: 358.28 },
{x: " 1994 2 ", y: 358.86 },
{x: " 1994 3 ", y: 359.69 },
{x: " 1994 4 ", y: 361.04 },
{x: " 1994 5 ", y: 361.73 },
{x: " 1994 6 ", y: 360.83 },
{x: " 1994 7 ", y: 358.93 },
{x: " 1994 8 ", y: 356.94 },
{x: " 1994 9 ", y: 355.33 },
{x: " 1994 10 ", y: 355.55 },
{x: " 1994 11 ", y: 357.49 },
{x: " 1994 12 ", y: 359.57 },
{x: " 1995 1 ", y: 360.24 },
{x: " 1995 2 ", y: 360.62 },
{x: " 1995 3 ", y: 361.82 },
{x: " 1995 4 ", y: 362.93 },
{x: " 1995 5 ", y: 363.63 },
{x: " 1995 6 ", y: 363.28 },
{x: " 1995 7 ", y: 361.36 },
{x: " 1995 8 ", y: 359.17 },
{x: " 1995 9 ", y: 358.04 },
{x: " 1995 10 ", y: 358.09 },
{x: " 1995 11 ", y: 359.44 },
{x: " 1995 12 ", y: 361.01 },
{x: " 1996 1 ", y: 362.1 },
{x: " 1996 2 ", y: 363.21 },
{x: " 1996 3 ", y: 364.18 },
{x: " 1996 4 ", y: 364.8 },
{x: " 1996 5 ", y: 365.35 },
{x: " 1996 6 ", y: 365.13 },
{x: " 1996 7 ", y: 363.51 },
{x: " 1996 8 ", y: 361.13 },
{x: " 1996 9 ", y: 359.3 },
{x: " 1996 10 ", y: 359.38 },
{x: " 1996 11 ", y: 360.92 },
{x: " 1996 12 ", y: 362.02 },
{x: " 1997 1 ", y: 363.06 },
{x: " 1997 2 ", y: 363.89 },
{x: " 1997 3 ", y: 364.91 },
{x: " 1997 4 ", y: 366.56 },
{x: " 1997 5 ", y: 366.67 },
{x: " 1997 6 ", y: 365.49 },
{x: " 1997 7 ", y: 364.09 },
{x: " 1997 8 ", y: 362.15 },
{x: " 1997 9 ", y: 360.5 },
{x: " 1997 10 ", y: 360.71 },