| 年份 | 图瓦卢 |
|---|---|
| 2023 | - |
| 2022 | 4.7619 |
| 2021 | 4.5976 |
| 2020 | 4.48109 |
| 2019 | 4.39498 |
| 2018 | 4.3412 |
| 2017 | 4.36902 |
| 2016 | 4.40545 |
| 2015 | 4.45775 |
| 2014 | 4.56184 |
| 2013 | 4.69697 |
| 2012 | 4.96245 |
| 2011 | 5.38203 |
| 2010 | 5.75204 |
| 2009 | 6.05674 |
| 2008 | 6.37265 |
| 2007 | 6.70196 |
| 2006 | 7.06949 |
| 2005 | 7.48755 |
| 2004 | 7.85158 |
| 2003 | 8.11789 |
| 2002 | 8.12941 |
| 2001 | 7.87491 |
| 2000 | 7.52721 |
| 1999 | 7.24667 |
| 1998 | 7.09691 |
| 1997 | 7.06206 |
| 1996 | 6.95449 |
| 1995 | 6.71892 |
| 1994 | 6.44472 |
| 1993 | 6.06524 |
| 1992 | 5.59812 |
| 1991 | 5.27998 |
| 1990 | 5.07019 |
| 1989 | 4.7771 |
| 1988 | 4.51152 |
| 1987 | 4.46035 |
| 1986 | 4.59127 |
| 1985 | 4.73534 |
| 1984 | 4.83164 |
| 1983 | 4.89763 |
| 1982 | 4.92726 |
| 1981 | 4.8546 |
| 1980 | 4.7481 |
| 1979 | 4.72956 |
| 1978 | 4.7449 |
| 1977 | 4.6688 |
| 1976 | 4.64534 |
| 1975 | 4.74665 |
| 1974 | 4.8279 |
| 1973 | 4.88263 |
| 1972 | 4.97951 |
| 1971 | 5.07212 |
| 1970 | 5.10774 |
| 1969 | 5.10843 |
| 1968 | 5.3676 |
| 1967 | 5.96544 |
| 1966 | 6.67799 |
| 1965 | 7.3965 |
| 1964 | 8.10002 |
| 1963 | 8.22965 |
| 1962 | 7.75539 |
| 1961 | 7.22093 |
| 1960 | 6.71601 |