The birth rate is typically the rate of births in a population over time. The rate of births in a population is calculated in several ways: live births from a universal registration system for births, deaths, and marriages; population counts from a census, and estimation through specialized demographic techniques. The birth rate (along with mortality and migration rate) are used to calculate population growth.
The crude birth rate is the number of births per 1,000 people per year. Another term used interchangeably with birth rate is natality. When the crude death rate is subtracted from the crude birth rate, the result is the rate of natural increase (RNI). This is equal to the rate of population change (excluding migration).
The total (crude) birth rate (which includes all births)—typically indicated as births per 1,000 population—is distinguished from an age-specific rate (the number of births per 1,000 persons in an age group). The first known use of the term "birth rate" in English occurred in 1859.
| Years | CBR | Years | CBR |
|---|---|---|---|
| 1950–1955 | 37.2 | 2000–2005 | 21.2 |
| 1955–1960 | 35.3 | 2005–2010 | 20.3 |
| 1960–1965 | 34.9 | 2010–2015 | 19.4 |
| 1965–1970 | 33.4 | 2015–2020 | 18.2 |
| 1970–1975 | 30.8 | 2020–2025 | 16.9 |
| 1975–1980 | 28.4 | 2025–2030 | 15.8 |
| 1980–1985 | 27.9 | 2030–2035 | 15.0 |
| 1985–1990 | 27.3 | 2035–2040 | 14.5 |
| 1990–1995 | 24.7 | 2040–2045 | 14.0 |
| 1995–2000 | 22.5 | 2045–2050 | 13.4 |
In 2012 the average global birth rate was 19.15 births per 1,000 total population, compared to 20.09 per 1,000 total population in 2007.
Read more about Birth Rate: Political Issues, National Birth Rates, Measurement Methods, Factors Affecting Birth Rate, Demographic Transition
Famous quotes containing the words birth and/or rate:
“To care for the quarrels of the past, to identify oneself passionately with a cause that became, politically speaking, a losing cause with the birth of the modern world, is to experience a kind of straining against reality, a rebellious nonconformity that, again, is rare in America, where children are instructed in the virtues of the system they live under, as though history had achieved a happy ending in American civics.”
—Mary McCarthy (1912–1989)
“If we became students of Malcolm X, we would not have young black men out there killing each other like they’re killing each other now. Young black men would not be impregnating young black women at the rate going on now. We’d not have the drugs we have now, or the alcoholism.”
—Spike Lee (b. 1956)