| 年份 | 粗出生率 | 粗死亡率 | 自然增长率 |
|---|---|---|---|
| 1960 | 44.7 | 10.7 | 34.0 |
| 1961 | 44.2 | 10.4 | 33.8 |
| 1962 | 43.7 | 10.1 | 33.7 |
| 1963 | 43.3 | 9.7 | 33.6 |
| 1964 | 42.8 | 9.4 | 33.4 |
| 1965 | 42.1 | 9.0 | 33.1 |
| 1966 | 41.5 | 8.7 | 32.8 |
| 1967 | 41.3 | 8.4 | 32.9 |
| 1968 | 39.7 | 8.0 | 31.6 |
| 1969 | 38.0 | 7.7 | 30.3 |
| 1970 | 36.5 | 7.4 | 29.2 |
| 1971 | 35.3 | 7.1 | 28.1 |
| 1972 | 34.3 | 7.0 | 27.3 |
| 1973 | 33.7 | 6.8 | 26.8 |
| 1974 | 33.4 | 6.7 | 26.7 |
| 1975 | 33.3 | 6.6 | 26.6 |
| 1976 | 33.4 | 6.6 | 26.8 |
| 1977 | 33.6 | 6.6 | 27.0 |
| 1978 | 34.1 | 6.6 | 27.6 |
| 1979 | 34.7 | 6.6 | 28.1 |
| 1980 | 35.0 | 6.6 | 28.4 |
| 1981 | 35.1 | 6.6 | 28.5 |
| 1982 | 34.9 | 6.7 | 28.2 |
| 1983 | 34.5 | 6.7 | 27.8 |
| 1984 | 33.8 | 6.7 | 27.0 |
| 1985 | 32.9 | 6.8 | 26.1 |
| 1986 | 31.9 | 6.8 | 25.1 |
| 1987 | 31.1 | 6.9 | 24.2 |
| 1988 | 30.8 | 6.8 | 23.9 |
| 1989 | 30.6 | 6.8 | 23.8 |
| 1990 | 30.7 | 6.8 | 23.8 |
| 1991 | 30.9 | 6.8 | 24.1 |
| 1992 | 30.9 | 6.8 | 24.1 |
| 1993 | 30.8 | 6.8 | 24.0 |
| 1994 | 30.5 | 6.8 | 23.7 |
| 1995 | 30.1 | 6.8 | 23.3 |
| 1996 | 29.8 | 6.8 | 23.0 |
| 1997 | 29.3 | 6.8 | 22.4 |
| 1998 | 29.3 | 6.8 | 22.5 |
| 1999 | 28.9 | 6.8 | 22.1 |
| 2000 | 28.4 | 6.8 | 21.6 |
| 2001 | 28.3 | 6.7 | 21.5 |
| 2002 | 28.7 | 6.7 | 22.0 |
| 2003 | 29.2 | 6.7 | 22.6 |
| 2004 | 29.3 | 6.6 | 22.7 |
| 2005 | 29.1 | 6.6 | 22.5 |
| 2006 | 28.7 | 6.6 | 22.1 |
| 2007 | 28.3 | 6.6 | 21.7 |
| 2008 | 28.0 | 6.6 | 21.4 |
| 2009 | 27.6 | 6.7 | 20.9 |
| 2010 | 27.3 | 6.6 | 20.7 |
| 2011 | 26.9 | 6.6 | 20.3 |
| 2012 | 26.5 | 6.6 | 19.9 |
| 2013 | 26.1 | 6.7 | 19.4 |
| 2014 | 25.7 | 6.7 | 18.9 |
| 2015 | 25.2 | 6.8 | 18.4 |
| 2016 | 24.5 | 6.8 | 17.7 |
| 2017 | 24.0 | 6.9 | 17.2 |
| 2018 | 23.6 | 6.9 | 16.7 |
| 2019 | 23.4 | 6.9 | 16.5 |
| 2020 | 23.1 | 6.9 | 16.2 |
| 2021 | 23.0 | 7.0 | 16.1 |
2021年，汤加人口粗出生率为23‰，粗死亡率为7‰，自然增长率为16.1‰。
