Births per 1,000 women, by age of mother

Fertility in World, 1981

World
1981
Total fertility rate: 3.71
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1981  +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 World was 3.71 children per woman in 1981 — above the replacement level of about 2.1. Births were most frequent among women aged 20-24 (208 per 1,000 women in that age group), and the average mother was 27.7 years old. In total, 129,715,837 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
3.71
Births
129,715,837
Births per 1,000 people
28.6
Mean age of mothers
27.7
Births to mothers aged 15–19
13.7%
Net reproduction rate
1.53
Boys per 100 girls at birth
105.8
Population
4,528,777,306
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
10-144.80.6%1,187,822
15-1977.510.4%17,708,043
20-24208.228.0%40,596,323
25-29202.827.3%36,749,671
30-34130.017.5%19,554,345
35-3978.710.6%9,361,957
40-4433.74.5%3,798,247
45-497.10.9%719,283
50-540.40.1%40,055