since 1979 the rule in china is to have only 1 child, there are some exception with more but also 0 children is possible.This is since 1979 but what i don't understand is that you need 2.11 kids a women( age they can get pregant) to not schrink( a little more then 2 because of the people that die early etc.) so with 1 child politics you shrink every generation like this population * 1 / 2.11= new population, so i don't understand why there population isn't shrinking big time. in a lot of europe countries like Holland there weren'ty even that lot immigration but it started after the war, that non whites went in and a lot of the immigrant ethncities grow every generation like 200%- 300% they are now 2-3 generation here, while the whites have in Holland and a lot of other europeans countries 1.6 children( from age) they can get pregnanta women which make you shrink 30% every generation. In Holland and a lot of other european countries it is right know difficult for non western immmgrant to come but the difference in birthrate is the main reason the white population is shrinking big time. there are a lot of movies and shows showed here where they say the world is overpopulated, but is is nearly always in tv programmms with typical white audience , but they don't say except whites because their population is shrinking.