The total fertility rate of Less developed regions is projected at 2.25 children per woman in 2034 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (130 per 1,000 women in that age group), and the average mother would be 28.5 years old. In total, 123,029,175 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2034

Total fertility rate

2.25

Births

123,029,175

Births per 1,000 people

16.3

Mean age of mothers

28.5

Births to mothers aged 15–19

8.8%

Net reproduction rate

1.04

Boys per 100 girls at birth

104.8

Population

7,535,767,806

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, 2034

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	0.9	0.2%	249,082
15-19	36.4	8.1%	10,773,250
20-24	108.9	24.2%	31,831,855
25-29	130.1	28.9%	35,736,336
30-34	99.5	22.1%	25,927,409
35-39	53.1	11.8%	13,281,537
40-44	17.8	4.0%	4,419,429
45-49	3.2	0.7%	768,396
50-54	0.2	0.0%	41,820

Fertility in Less developed regions by year

Fertility in Less developed regions, 2034

Year

Country