In 20021year, the natural population growth rate of Yunnan Province was 1.23%. Although it is positive, the permanent population has decreased by 320,000, mainly due to the outflow of population, and the decrease of permanent population is mainly due to the decrease of birth population.

The data show that in 20021year, the population born in Yunnan decreased by 22%, in Shandong by 57% and in Henan by 43.6%. Nationally, in 202 1 year, the national birth rate was 7.52% and the birth population was10.62 million. The birth rate and the number of people born hit a record low since 1949.