Japan Number of Births by Age of Mother, Birth Order, and Prefecture 2016
出生数,2500g未満出生数(再掲),性・母の年齢(各歳)・出生順位・都道府県(大都市再掲)別
Vital registration:
Subnationally representative
Formerly known as the Bureau of Statistics (Office of the Prime Minister) from the 1940s to the late 1970s.