The total fertility rate of Least developed countries is projected at 2.04 children per woman in 2099 — below the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (114 per 1,000 women in that age group), and the average mother would be 29.8 years old. In total, 41,956,564 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2099

Total fertility rate

2.04

Births

41,956,564

Births per 1,000 people

13.8

Mean age of mothers

29.8

Births to mothers aged 15–19

5.9%

Net reproduction rate

0.98

Boys per 100 girls at birth

103.6

Population

3,039,134,386

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, 2099

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	0.3	0.1%	31,512
15-19	23.6	5.8%	2,472,632
20-24	73.9	18.1%	7,693,782
25-29	113.6	27.8%	11,718,872
30-34	109.7	26.8%	11,214,544
35-39	63.6	15.6%	6,429,103
40-44	21.1	5.2%	2,098,554
45-49	3.0	0.7%	288,878
50-54	0.1	0.0%	8,661

Fertility in Least developed countries by year

Fertility in Least developed countries, 2099

Year

Country