Births per 1,000 women, by age of mother

Fertility in Less developed regions, 1973

Less developed regions
1973
Total fertility rate: 5.34
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1973  +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 5.34 children per woman in 1973 — above the replacement level of about 2.1. Births were most frequent among women aged 25-29 (265 per 1,000 women in that age group), and the average mother was 28.9 years old. In total, 107,099,949 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
5.34
Births
107,099,949
Births per 1,000 people
37.1
Mean age of mothers
28.9
Births to mothers aged 15–19
13.7%
Net reproduction rate
2.03
Boys per 100 girls at birth
105.5
Population
2,886,267,269
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%1,097,888
15-1998.09.2%14,669,548
20-24253.523.8%31,556,868
25-29265.224.9%25,406,831
30-34210.919.8%17,522,389
35-39146.013.7%11,208,143
40-4471.16.7%4,788,672
45-4914.11.3%812,365
50-540.80.1%37,177