| 年份 | 汤加总和生育率 |
|---|---|
| 2023 | 3.13 |
| 2022 | 3.17 |
| 2021 | 3.20 |
| 2020 | 3.23 |
| 2019 | 3.27 |
| 2018 | 3.33 |
| 2017 | 3.39 |
| 2016 | 3.46 |
| 2015 | 3.54 |
| 2014 | 3.62 |
| 2013 | 3.70 |
| 2012 | 3.77 |
| 2011 | 3.83 |
| 2010 | 3.88 |
| 2009 | 3.95 |
| 2008 | 4.01 |
| 2007 | 4.09 |
| 2006 | 4.14 |
| 2005 | 4.20 |
|
|
|
| 2004 | 4.19 |
| 2003 | 4.18 |
| 2002 | 4.14 |
| 2001 | 4.13 |
| 2000 | 4.16 |
| 1999 | 4.23 |
| 1998 | 4.31 |
| 1997 | 4.38 |
| 1996 | 4.46 |
| 1995 | 4.56 |
| 1994 | 4.66 |
| 1993 | 4.73 |
| 1992 | 4.79 |
| 1991 | 4.85 |
| 1990 | 4.93 |
| 1989 | 5.01 |
| 1988 | 5.10 |
| 1987 | 5.19 |
| 1986 | 5.27 |
| 1985 | 5.34 |
|
|
|
| 1984 | 5.41 |
| 1983 | 5.45 |
| 1982 | 5.50 |
| 1981 | 5.55 |
| 1980 | 5.60 |
| 1979 | 5.65 |
| 1978 | 5.68 |
| 1977 | 5.70 |
| 1976 | 5.73 |
| 1975 | 5.75 |
| 1974 | 5.76 |
| 1973 | 5.80 |
| 1972 | 5.86 |
| 1971 | 5.96 |
| 1970 | 6.07 |
| 1969 | 6.17 |
| 1968 | 6.23 |
| 1967 | 6.29 |
| 1966 | 6.35 |
| 1965 | 6.41 |
| 1964 | 6.46 |
| 1963 | 6.52 |
| 1962 | 6.57 |
| 1961 | 6.61 |
| 1960 | 6.65 |
| 1959 | 7.36 |