| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 5.20425 |
| 2021 | 5.31043 |
| 2020 | 5.42093 |
| 2019 | 5.53253 |
| 2018 | 5.62949 |
| 2017 | 5.71074 |
| 2016 | 5.77951 |
| 2015 | 5.83577 |
| 2014 | 5.87802 |
| 2013 | 5.89968 |
| 2012 | 5.88647 |
| 2011 | 5.83148 |
| 2010 | 5.74595 |
| 2009 | 5.65594 |
| 2008 | 5.58927 |
| 2007 | 5.57064 |
| 2006 | 5.59679 |
| 2005 | 5.64983 |
| 2004 | 5.70967 |
| 2003 | 5.75068 |
| 2002 | 5.75796 |
| 2001 | 5.73954 |
| 2000 | 5.70412 |
| 1999 | 5.64283 |
| 1998 | 5.55919 |
| 1997 | 5.46335 |
| 1996 | 5.36262 |
| 1995 | 5.2559 |
| 1994 | 5.14624 |
| 1993 | 5.03704 |
| 1992 | 4.92816 |
| 1991 | 4.80569 |
| 1990 | 4.66859 |
| 1989 | 4.52679 |
| 1988 | 4.37921 |
| 1987 | 4.2495 |
| 1986 | 4.16317 |
| 1985 | 4.11238 |
| 1984 | 4.08007 |
| 1983 | 4.06163 |
| 1982 | 4.05187 |
| 1981 | 4.07873 |
| 1980 | 4.15094 |
| 1979 | 4.24075 |
| 1978 | 4.33853 |
| 1977 | 4.43261 |
| 1976 | 4.44755 |
| 1975 | 4.36579 |
| 1974 | 4.26048 |
| 1973 | 4.22638 |
| 1972 | 4.27966 |
| 1971 | 4.36833 |
| 1970 | 4.49163 |
| 1969 | 4.63148 |
| 1968 | 4.75216 |
| 1967 | 4.82276 |
| 1966 | 4.82949 |
| 1965 | 4.7843 |
| 1964 | 4.70999 |
| 1963 | 4.62158 |
| 1962 | 4.53405 |
| 1961 | 4.48801 |
| 1960 | 4.4776 |