The total fertility rate of Less developed regions is projected at 1.98 children per woman in 2075 — below the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (116 per 1,000 women in that age group), and the average mother would be 29.4 years old. In total, 112,250,924 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2075

Total fertility rate

1.98

Births

112,250,924

Births per 1,000 people

12.4

Mean age of mothers

29.4

Births to mothers aged 15–19

5.7%

Net reproduction rate

0.94

Boys per 100 girls at birth

104.5

Population

9,030,143,829

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, 2075

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	0.3	0.1%	95,550
15-19	22.8	5.8%	6,359,523
20-24	78.4	19.7%	22,040,343
25-29	116.3	29.3%	33,096,637
30-34	104.1	26.2%	29,673,586
35-39	55.1	13.9%	15,500,881
40-44	17.4	4.4%	4,769,188
45-49	2.6	0.6%	683,866
50-54	0.1	0.0%	31,278

Fertility in Less developed regions by year

Fertility in Less developed regions, 2075

Year

Country