Fertility in Nigeria, 1990
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1990
Total fertility rate: 6.46
The total fertility rate of Nigeria was 6.46 children per woman in 1990 — above the replacement level of about 2.1. Births were most frequent among women aged 25-29 (290 per 1,000 women in that age group), and the average mother was 29.3 years old. In total, 4,323,148 babies were born. Source: United Nations, World Population Prospects 2024.
Key indicators, 1990
Total fertility rate
6.46
Births
4,323,148
Births per 1,000 people
44.5
Mean age of mothers
29.3
Births to mothers aged 15–19
16.3%
Net reproduction rate
2.14
Boys per 100 girls at birth
105.2
Population
97,120,925
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, 1990
| Mother's age | Births per 1,000 women | Share of total fertility | Births |
|---|---|---|---|
| 10-14 | 15.9 | 1.2% | 97,270 |
| 15-19 | 143.0 | 11.1% | 704,066 |
| 20-24 | 261.9 | 20.3% | 1,050,570 |
| 25-29 | 289.7 | 22.4% | 988,271 |
| 30-34 | 256.1 | 19.9% | 747,509 |
| 35-39 | 184.1 | 14.3% | 454,882 |
| 40-44 | 105.6 | 8.2% | 219,882 |
| 45-49 | 32.0 | 2.5% | 57,618 |
| 50-54 | 2.1 | 0.2% | 3,081 |
Fertility in Nigeria by year