Fertility in Less developed regions, 1975

Less developed regions
1975
Total fertility rate: 4.88
Births per 1,000 women, by age of mother
1975
Hover a column for the exact rate. Adding up all the rates (× 5 years ÷ 1,000) gives the total fertility rate.
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1975  +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 4.88 children per woman in 1975 — above the replacement level of about 2.1. Births were most frequent among women aged 25-29 (247 per 1,000 women in that age group), and the average mother was 28.7 years old. In total, 104,797,641 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
4.88
Births
104,797,641
Births per 1,000 people
34.7
Mean age of mothers
28.7
Births to mothers aged 15–19
14.0%
Net reproduction rate
1.88
Boys per 100 girls at birth
105.5
Population
3,020,759,777
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
10-146.10.6%1,092,463
15-1996.69.9%14,679,929
20-24235.824.1%31,883,895
25-29246.825.3%25,845,663
30-34189.619.4%16,247,599
35-39126.112.9%9,875,322
40-4461.66.3%4,339,337
45-4913.11.3%794,260
50-540.80.1%39,152