Population[1] | ||
---|---|---|
Years passed | Year | Billion |
– | 1800 | 1 |
127 | 1927 | 2 |
33 | 1960 | 3 |
14 | 1974 | 4 |
13 | 1987 | 5 |
12 | 1999 | 6 |
12 | 2011 | 7 |
12 | 2023* | 8 |
14 | 2037* | 9 |
18 | 2055* | 10 |
33 | 2088* | 11 |
*World Population Prospects 2017 (United Nations Population Division) |
Population growth is the rate at which a population grows or expands. For example, if a population increased from 100 to 110 in a year, then it would have had a population growth of 10% per year.
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