| 年份 | 图瓦卢 |
|---|---|
| 2023 | - |
| 2022 | 0.959325 |
| 2021 | 1.21224 |
| 2020 | 1.02612 |
| 2019 | 0.834064 |
| 2018 | 0.341124 |
| 2017 | -0.221402 |
| 2016 | -0.230107 |
| 2015 | -0.202057 |
| 2014 | -0.174176 |
| 2013 | 0.587913 |
| 2012 | 1.42899 |
| 2011 | 1.41179 |
| 2010 | 1.35511 |
| 2009 | 1.3153 |
| 2008 | 1.20466 |
| 2007 | 1.17946 |
| 2006 | 1.18345 |
| 2005 | 1.22825 |
| 2004 | 1.26421 |
| 2003 | 0.61213 |
| 2002 | -0.124805 |
| 2001 | -0.176541 |
| 2000 | -0.020749 |
| 1999 | 0.06226 |
| 1998 | 0.0415282 |
| 1997 | 0.197495 |
| 1996 | 0.27089 |
| 1995 | 0.271626 |
| 1994 | 0.440345 |
| 1993 | 0.537324 |
| 1992 | 1.19024 |
| 1991 | 1.8559 |
| 1990 | 1.81334 |
| 1989 | 1.93724 |
| 1988 | 2.04473 |
| 1987 | 1.96965 |
| 1986 | 1.98521 |
| 1985 | 1.59752 |
| 1984 | 1.20276 |
| 1983 | 1.31744 |
| 1982 | 1.5 |
| 1981 | 1.8328 |
| 1980 | 2.34258 |
| 1979 | 3.43491 |
| 1978 | 4.38415 |
| 1977 | 4.4953 |
| 1976 | 4.5344 |
| 1975 | 4.50361 |
| 1974 | 2.75902 |
| 1973 | 0.727276 |
| 1972 | 0.630057 |
| 1971 | 0.685639 |
| 1970 | 0.603814 |
| 1969 | 0.868966 |
| 1968 | 1.26473 |
| 1967 | 1.17356 |
| 1966 | 0.772066 |
| 1965 | 0.415426 |
| 1964 | 0.398985 |
| 1963 | 0.583198 |
| 1962 | 0.641792 |
| 1961 | 0.590408 |
| 1960 | - |