Births per 1,000 women, by age of mother
Fertility in Japan, 1985
Japan
Afghanistan
Africa
Albania
Algeria
Angola
Antigua and Barbuda
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Asia
Australia
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Least developed countries
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Less developed regions
Less developed regions, excluding China
Less developed regions, excluding least developed countries
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Other non-specified areas
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Western Asia
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Western Sahara
World
Yemen
Zambia
Zimbabwe
1985
Total fertility rate: 1.74
The total fertility rate of Japan was 1.74 children per woman in 1985 — below the replacement level of about 2.1. Births were most frequent among women aged 25-29 (176 per 1,000 women in that age group), and the average mother was 28.3 years old. In total, 1,390,552 babies were born. Source: United Nations, World Population Prospects 2024.
Key indicators, 1985
Total fertility rate
1.74
Births
1,390,552
Births per 1,000 people
11.5
Mean age of mothers
28.3
Births to mothers aged 15–19
1.1%
Net reproduction rate
0.83
Boys per 100 girls at birth
105.6
Population
120,832,163
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.
Fertility by age of mother, 1985
| Mother's age | Births per 1,000 women | Share of total fertility | Births |
|---|---|---|---|
| 10-14 | 0.0 | 0.0% | 34 |
| 15-19 | 3.8 | 1.1% | 15,918 |
| 20-24 | 61.2 | 17.8% | 235,000 |
| 25-29 | 176.3 | 51.3% | 669,944 |
| 30-34 | 82.5 | 24.0% | 363,969 |
| 35-39 | 17.9 | 5.2% | 97,891 |
| 40-44 | 1.7 | 0.5% | 7,578 |
| 45-49 | 0.1 | 0.0% | 216 |
| 50-54 | 0.0 | 0.0% | 0 |
Fertility in Japan by year