https://journalofethics.ama-assn.org/article/history-oral-contraception/2000-06#:~:text=The%20Food%20and%20Drug%20Administration,as%20it%20is%20popularly%20known.
"..The Food and Drug Administration approved the first oral contraceptive in 1960. Within 2 years of its initial distribution, 1.2 million American women were using the birth control pill, or the "pill," as it is popularly known..."
Well, my daughter’s doing her part. I’ve got 5 grandkids.
Somewhat out of context, but looking at your graph, I think, “Africa wins again.”