| 年份 | 图瓦卢 |
|---|---|
| 2023 | - |
| 2022 | 1.49164 |
| 2021 | 1.4596 |
| 2020 | 1.39425 |
| 2019 | 1.29101 |
| 2018 | 1.18475 |
| 2017 | 1.11657 |
| 2016 | 1.08763 |
| 2015 | 1.1217 |
| 2014 | 1.1818 |
| 2013 | 1.22384 |
| 2012 | 1.24218 |
| 2011 | 1.2641 |
| 2010 | 1.25844 |
| 2009 | 1.22318 |
| 2008 | 1.22441 |
| 2007 | 1.23469 |
| 2006 | 1.25358 |
| 2005 | 1.31236 |
| 2004 | 1.38394 |
| 2003 | 1.46891 |
| 2002 | 1.56674 |
| 2001 | 1.62236 |
| 2000 | 1.64605 |
| 1999 | 1.72432 |
| 1998 | 1.84697 |
| 1997 | 1.90557 |
| 1996 | 1.87214 |
| 1995 | 1.78667 |
| 1994 | 1.6889 |
| 1993 | 1.58283 |
| 1992 | 1.49841 |
| 1991 | 1.44284 |
| 1990 | 1.3607 |
| 1989 | 1.23929 |
| 1988 | 1.10124 |
| 1987 | 0.969697 |
| 1986 | 0.905483 |
| 1985 | 0.876302 |
| 1984 | 0.84186 |
| 1983 | 0.828729 |
| 1982 | 0.844278 |
| 1981 | 0.846648 |
| 1980 | 0.835189 |
| 1979 | 0.884956 |
| 1978 | 0.962535 |
| 1977 | 0.992248 |
| 1976 | 1.07073 |
| 1975 | 1.18745 |
| 1974 | 1.20696 |
| 1973 | 1.24133 |
| 1972 | 1.32426 |
| 1971 | 1.38889 |
| 1970 | 1.47333 |
| 1969 | 1.5748 |
| 1968 | 1.61959 |
| 1967 | 1.5861 |
| 1966 | 1.52888 |
| 1965 | 1.46506 |
| 1964 | 1.39639 |
| 1963 | 1.31946 |
| 1962 | 1.14382 |
| 1961 | 1.0206 |
| 1960 | 0.967926 |