Births per 1,000 women, by age of mother

Fertility in Less developed regions, 1957

Less developed regions
1957
Total fertility rate: 6.22
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1957  +1 +5

Country

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

The total fertility rate of Less developed regions was 6.22 children per woman in 1957 — above the replacement level of about 2.1. Births were most frequent among women aged 25-29 (295 per 1,000 women in that age group), and the average mother was 29.2 years old. In total, 87,213,637 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
6.22
Births
87,213,637
Births per 1,000 people
44.2
Mean age of mothers
29.2
Births to mothers aged 15–19
12.0%
Net reproduction rate
2.09
Boys per 100 girls at birth
105.3
Population
1,971,234,868
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.
Mother's ageBirths per 1,000 womenShare of total fertilityBirths
10-147.60.6%754,303
15-19117.79.5%10,473,176
20-24280.322.5%23,241,864
25-29294.923.7%21,585,830
30-34247.719.9%15,774,500
35-39185.814.9%10,155,622
40-4494.07.5%4,525,201
45-4916.21.3%676,751
50-540.70.1%26,377