Births per 1,000 women, by age of mother

Fertility in Japan, 1979

Japan
1979
Total fertility rate: 1.77
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1979  +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 Japan was 1.77 children per woman in 1979 — below the replacement level of about 2.1. Births were most frequent among women aged 25-29 (180 per 1,000 women in that age group), and the average mother was 27.7 years old. In total, 1,676,683 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
1.77
Births
1,676,683
Births per 1,000 people
14.3
Mean age of mothers
27.7
Births to mothers aged 15–19
0.8%
Net reproduction rate
0.84
Boys per 100 girls at birth
106.1
Population
117,521,556
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
10-140.00.0%19
15-193.51.0%13,494
20-2481.722.9%322,396
25-29180.050.4%862,568
30-3477.321.6%408,780
35-3913.23.7%62,368
40-441.60.5%6,772
45-490.10.0%286
50-540.00.0%0