Births per 1,000 women, by age of mother

Fertility in Northern America, 1972

Northern America
1972
Total fertility rate: 2.05
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1972  +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 Northern America was 2.05 children per woman in 1972 — below the replacement level of about 2.1. Births were most frequent among women aged 20-24 (132 per 1,000 women in that age group), and the average mother was 26.0 years old. In total, 3,756,438 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
2.05
Births
3,756,438
Births per 1,000 people
16.0
Mean age of mothers
26.0
Births to mothers aged 15–19
17.8%
Net reproduction rate
0.97
Boys per 100 girls at birth
105.2
Population
235,179,324
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
10-141.40.3%16,386
15-1959.514.5%669,272
20-24132.432.3%1,349,302
25-29122.129.8%1,067,691
30-3462.115.2%442,697
35-3925.46.2%164,836
40-446.41.6%42,383
45-490.50.1%3,821
50-540.00.0%50