| 年份 | 图瓦卢 |
|---|---|
| 2023 | - |
| 2022 | 5.03535 |
| 2021 | 4.85665 |
| 2020 | 4.77903 |
| 2019 | 4.73075 |
| 2018 | 4.64992 |
| 2017 | 4.64493 |
| 2016 | 4.76955 |
| 2015 | 4.90519 |
| 2014 | 5.10041 |
| 2013 | 5.45406 |
| 2012 | 5.85344 |
| 2011 | 6.15678 |
| 2010 | 6.43102 |
| 2009 | 6.7181 |
| 2008 | 6.86818 |
| 2007 | 6.87342 |
| 2006 | 6.91936 |
| 2005 | 6.9425 |
| 2004 | 6.90953 |
| 2003 | 6.88942 |
| 2002 | 6.75789 |
| 2001 | 6.47896 |
| 2000 | 6.19627 |
| 1999 | 5.89843 |
| 1998 | 5.60422 |
| 1997 | 5.46263 |
| 1996 | 5.38241 |
| 1995 | 5.34931 |
| 1994 | 5.37866 |
| 1993 | 5.29055 |
| 1992 | 5.15148 |
| 1991 | 4.92786 |
| 1990 | 4.52432 |
| 1989 | 4.15798 |
| 1988 | 3.96684 |
| 1987 | 3.90303 |
| 1986 | 3.91962 |
| 1985 | 4.06401 |
| 1984 | 4.07978 |
| 1983 | 3.81479 |
| 1982 | 3.52452 |
| 1981 | 3.30466 |
| 1980 | 3.18764 |
| 1979 | 3.22581 |
| 1978 | 3.4207 |
| 1977 | 3.62791 |
| 1976 | 3.86113 |
| 1975 | 4.08821 |
| 1974 | 4.13561 |
| 1973 | 4.18036 |
| 1972 | 4.24867 |
| 1971 | 4.24074 |
| 1970 | 4.23349 |
| 1969 | 4.19948 |
| 1968 | 4.7081 |
| 1967 | 5.87236 |
| 1966 | 7.02152 |
| 1965 | 7.94515 |
| 1964 | 8.58313 |
| 1963 | 8.41851 |
| 1962 | 7.59422 |
| 1961 | 6.86071 |
| 1960 | 6.24407 |