The total fertility rate of Least developed countries is projected at 2.33 children per woman in 2073 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (123 per 1,000 women in that age group), and the average mother would be 29.2 years old. In total, 44,481,359 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2073

Total fertility rate

2.33

Births

44,481,359

Births per 1,000 people

17.3

Mean age of mothers

29.2

Births to mothers aged 15–19

9.1%

Net reproduction rate

1.10

Boys per 100 girls at birth

103.7

Population

2,575,281,851

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, 2073

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	0.7	0.2%	77,459
15-19	39.0	8.4%	4,055,013
20-24	98.8	21.2%	9,955,685
25-29	122.9	26.3%	11,898,811
30-34	109.0	23.3%	10,098,958
35-39	66.1	14.2%	5,860,521
40-44	25.5	5.5%	2,157,920
45-49	4.6	1.0%	363,086
50-54	0.2	0.0%	13,922

Fertility in Least developed countries by year

Fertility in Least developed countries, 2073

Year

Country