Where does the data come from?

The data used here comes from diagrams provided in the 2015 study, “Realizing a desired family size: when should couples start?” .

It was hand approximated from the following diagrams by Chris Olah in his blog post on that study, which has additional data analysis that you may find useful.

The code for this website is open sourced on GitHub.

1 child fertility chart 2 children fertility chart 3 children fertility chart
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