| 年份 | 汤加 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | -3.368 |
| 2020 | 0.199364 |
| 2019 | 0.897435 |
| 2018 | 0.493857 |
| 2017 | 3.60864 |
| 2016 | 6.98939 |
| 2015 | 1.65238 |
| 2014 | 2.46169 |
| 2013 | 0.699173 |
| 2012 | 0.925331 |
| 2011 | 6.59196 |
| 2010 | 0.579134 |
| 2009 | -5.38669 |
| 2008 | 4.46217 |
| 2007 | -0.150157 |
| 2006 | -0.672387 |
| 2005 | -0.484588 |
| 2004 | -2.99232 |
| 2003 | 1.71425 |
| 2002 | 4.24804 |
| 2001 | 3.13876 |
| 2000 | 0.265443 |
| 1999 | 3.06105 |
| 1998 | 1.76622 |
| 1997 | 0.757849 |
| 1996 | 1.58403 |
| 1995 | 7.11432 |
| 1994 | 4.70101 |
| 1993 | 3.49615 |
| 1992 | -0.000522763 |
| 1991 | 6.11078 |
| 1990 | -2.38937 |
| 1989 | -0.059087 |
| 1988 | -2.42987 |
| 1987 | 2.6536 |
| 1986 | 2.09447 |
| 1985 | 6.52223 |
| 1984 | 1.6954 |
| 1983 | 1.92982 |
| 1982 | 4.64942 |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |