| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 3.62133 |
| 2021 | 3.62454 |
| 2020 | 3.60272 |
| 2019 | 3.55294 |
| 2018 | 3.48481 |
| 2017 | 3.41147 |
| 2016 | 3.34113 |
| 2015 | 3.27312 |
| 2014 | 3.20781 |
| 2013 | 3.1428 |
| 2012 | 3.07334 |
| 2011 | 3.00762 |
| 2010 | 2.93508 |
| 2009 | 2.84397 |
| 2008 | 2.74384 |
| 2007 | 2.6428 |
| 2006 | 2.5501 |
| 2005 | 2.48312 |
| 2004 | 2.45062 |
| 2003 | 2.44836 |
| 2002 | 2.47008 |
| 2001 | 2.49916 |
| 2000 | 2.53322 |
| 1999 | 2.5695 |
| 1998 | 2.59838 |
| 1997 | 2.61894 |
| 1996 | 2.62503 |
| 1995 | 2.61656 |
| 1994 | 2.59919 |
| 1993 | 2.582 |
| 1992 | 2.5741 |
| 1991 | 2.57336 |
| 1990 | 2.57729 |
| 1989 | 2.58342 |
| 1988 | 2.57415 |
| 1987 | 2.54488 |
| 1986 | 2.53513 |
| 1985 | 2.55205 |
| 1984 | 2.55004 |
| 1983 | 2.51342 |
| 1982 | 2.45118 |
| 1981 | 2.39892 |
| 1980 | 2.37331 |
| 1979 | 2.34279 |
| 1978 | 2.29159 |
| 1977 | 2.22504 |
| 1976 | 2.14933 |
| 1975 | 2.08079 |
| 1974 | 2.02249 |
| 1973 | 1.96346 |
| 1972 | 1.90278 |
| 1971 | 1.84024 |
| 1970 | 1.78099 |
| 1969 | 1.73035 |
| 1968 | 1.69201 |
| 1967 | 1.67015 |
| 1966 | 1.65758 |
| 1965 | 1.65721 |
| 1964 | 1.6808 |
| 1963 | 1.72828 |
| 1962 | 1.79249 |
| 1961 | 1.8466 |
| 1960 | 1.88516 |