Russian Demographics: the US fertility

Wednesday, May 9, 2018

the US fertility

US #fertility is highest for very poor and very rich women.
(TFR = total fertility rate = lifetime births per woman). ACS 2012-2016 pic.twitter.com/eZKeJTN8f6
— Carl Schmertmann (@CSchmert) May 8, 2018

каменты тоже любопытны

1 comment:

ba.ldei.aga said...: имхо: форма кривой — инвариант; May 9, 2018 at 10:09 AM

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