While South Korea has the largest fertility rate fall it's important that they are just the most extreme of many countries. East Asian countries in general like

While South Korea has the largest fertility rate fall it's important that they are just the most extreme of many countries. East Asian countries in general like China and Japan have been having a big fall, and many European countries are as well. France has the highest birthrate of any European country at 1.84 but even that is below replacement rate.