The total fertility rate of Less developed regions, excluding China is projected at 2.50 children per woman in 2031 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (142 per 1,000 women in that age group), and the average mother would be 28.3 years old. In total, 113,822,486 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2031

Total fertility rate

2.50

Births

113,822,486

Births per 1,000 people

19.2

Mean age of mothers

28.3

Births to mothers aged 15–19

9.6%

Net reproduction rate

1.15

Boys per 100 girls at birth

104.7

Population

5,921,050,477

The net reproduction rate counts only daughters who survive to their mothers' age: below 1, each generation of women is smaller than the one before.

Fertility by age of mother, 2031

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	1.1	0.2%	269,785
15-19	43.1	8.6%	10,982,914
20-24	125.9	25.2%	30,716,962
25-29	142.1	28.4%	32,641,466
30-34	105.4	21.1%	22,867,185
35-39	57.3	11.5%	11,708,211
40-44	20.8	4.2%	3,947,786
45-49	3.8	0.8%	651,038
50-54	0.2	0.0%	37,038

Fertility in Less developed regions, excluding China by year

Fertility in Less developed regions, excluding China, 2031

Year

Country