This repository is no longer maintained, legacy data is still available. Go to https://github.com/mrcaseb/nfl-data/tree/master/data/ngs for updated data.
Weekly data scraped from NFL Next Gen Stats website
Data runs from 2016-present.
The season totals CSV is only 2017-present since 2016 does not include the abbreviated player names.
By default, NFL Next Gen Stats website has a minimum of 15 passing attempts in a given week to show up so if you don't see a quarterback for a certain week, that is likely the reason.