The total fertility rate of Less developed regions is projected at 2.19 children per woman in 2043 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (125 per 1,000 women in that age group), and the average mother would be 28.7 years old. In total, 123,714,711 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2043

Total fertility rate

2.19

Births

123,714,711

Births per 1,000 people

15.4

Mean age of mothers

28.7

Births to mothers aged 15–19

7.8%

Net reproduction rate

1.02

Boys per 100 girls at birth

104.6

Population

8,056,571,260

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, 2043

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	0.7	0.2%	204,178
15-19	34.5	7.9%	9,662,312
20-24	102.6	23.4%	28,736,096
25-29	124.5	28.4%	36,407,549
30-34	101.2	23.1%	28,909,933
35-39	54.3	12.4%	14,488,830
40-44	18.1	4.1%	4,577,440
45-49	2.8	0.6%	689,981
50-54	0.2	0.0%	38,315

Fertility in Less developed regions by year

Fertility in Less developed regions, 2043

Year

Country