Births per 1,000 women, by age of mother

Fertility in Less developed regions, 1978

Less developed regions
1978
Total fertility rate: 4.47
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1978  +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 4.47 children per woman in 1978 — above the replacement level of about 2.1. Births were most frequent among women aged 25-29 (230 per 1,000 women in that age group), and the average mother was 28.4 years old. In total, 106,098,947 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
4.47
Births
106,098,947
Births per 1,000 people
32.9
Mean age of mothers
28.4
Births to mothers aged 15–19
13.8%
Net reproduction rate
1.75
Boys per 100 girls at birth
105.6
Population
3,221,093,318
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
10-145.60.6%1,103,532
15-1990.910.2%14,615,512
20-24224.725.1%33,059,217
25-29230.025.7%28,063,956
30-34168.318.8%15,739,094
35-39109.512.3%8,847,672
40-4452.15.8%3,870,404
45-4911.71.3%759,885
50-540.70.1%39,669