Births per 1,000 women, by age of mother

Fertility in More developed regions, 1957

More developed regions
1957
Total fertility rate: 2.75
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 More developed regions was 2.75 children per woman in 1957 — above the replacement level of about 2.1. Births were most frequent among women aged 25-29 (167 per 1,000 women in that age group), and the average mother was 28.0 years old. In total, 18,804,096 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
2.75
Births
18,804,096
Births per 1,000 people
21.3
Mean age of mothers
28.0
Births to mothers aged 15–19
7.0%
Net reproduction rate
1.25
Boys per 100 girls at birth
105.6
Population
881,383,469
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
10-140.30.1%10,722
15-1936.86.7%1,318,789
20-24159.228.9%5,444,471
25-29167.130.4%5,912,500
30-34108.119.6%3,800,878
35-3959.710.9%1,758,933
40-4417.33.1%498,194
45-491.90.3%56,501
50-540.10.0%3,100