New causal inference datasets

[andrewtavis]

Use this issue to post links to causal inference datasets that could be added to causeinfer.

Datasets that are found can be converted into issues where scripts for formatting and loading the data would be written. These would be good first issues for people who want to contribute. Issues could also be directly made when datasets are found (see this issue for suggestions).

With the dataset link it would be helpful to get a short description that includes whether it's related to business, medical, or socioeconomic fields.

Thanks for your time and input!