Births per 1,000 women, by age of mother

Fertility in More developed regions, 1971

More developed regions
1971
Total fertility rate: 2.28
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1971  +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 2.28 children per woman in 1971 — above the replacement level of about 2.1. Births were most frequent among women aged 20-24 (148 per 1,000 women in that age group), and the average mother was 26.9 years old. In total, 17,115,476 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
2.28
Births
17,115,476
Births per 1,000 people
16.8
Mean age of mothers
26.9
Births to mothers aged 15–19
10.0%
Net reproduction rate
1.07
Boys per 100 girls at birth
105.7
Population
1,017,200,319
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
10-140.50.1%20,099
15-1939.88.7%1,707,758
20-24148.332.5%6,246,259
25-29145.231.9%4,841,619
30-3477.417.0%2,797,586
35-3934.67.6%1,148,749
40-449.22.0%323,056
45-490.80.2%28,207
50-540.10.0%2,124