Births per 1,000 women, by age of mother

Fertility in Less developed regions, 1971

Less developed regions
1971
Total fertility rate: 5.67
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 Less developed regions was 5.67 children per woman in 1971 — above the replacement level of about 2.1. Births were most frequent among women aged 25-29 (276 per 1,000 women in that age group), and the average mother was 29.1 years old. In total, 106,624,205 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
5.67
Births
106,624,205
Births per 1,000 people
38.7
Mean age of mothers
29.1
Births to mothers aged 15–19
13.3%
Net reproduction rate
2.12
Boys per 100 girls at birth
105.5
Population
2,752,647,547
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
10-146.70.6%1,037,507
15-1999.48.8%14,156,959
20-24265.623.4%29,933,396
25-29275.924.3%24,868,302
30-34226.420.0%18,454,681
35-39163.814.5%12,177,192
40-4479.87.0%5,140,757
45-4914.91.3%820,237
50-540.80.1%35,154