| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 8.09129 |
| 2021 | 8.14026 |
| 2020 | 8.20275 |
| 2019 | 8.30725 |
| 2018 | 8.43242 |
| 2017 | 8.53759 |
| 2016 | 8.62179 |
| 2015 | 8.63288 |
| 2014 | 8.5447 |
| 2013 | 8.40698 |
| 2012 | 8.25059 |
| 2011 | 8.05406 |
| 2010 | 7.88163 |
| 2009 | 7.79338 |
| 2008 | 7.74713 |
| 2007 | 7.73507 |
| 2006 | 7.78225 |
| 2005 | 7.90077 |
| 2004 | 8.06234 |
| 2003 | 8.2482 |
| 2002 | 8.45157 |
| 2001 | 8.74196 |
| 2000 | 9.10929 |
| 1999 | 9.46943 |
| 1998 | 9.80606 |
| 1997 | 10.0917 |
| 1996 | 10.2985 |
| 1995 | 10.4179 |
| 1994 | 10.4701 |
| 1993 | 10.4763 |
| 1992 | 10.4594 |
| 1991 | 10.476 |
| 1990 | 10.5454 |
| 1989 | 10.5937 |
| 1988 | 10.5541 |
| 1987 | 10.413 |
| 1986 | 10.2565 |
| 1985 | 10.1706 |
| 1984 | 10.1157 |
| 1983 | 10.0267 |
| 1982 | 9.86807 |
| 1981 | 9.69318 |
| 1980 | 9.53504 |
| 1979 | 9.32297 |
| 1978 | 9.01448 |
| 1977 | 8.61373 |
| 1976 | 8.34157 |
| 1975 | 8.32467 |
| 1974 | 8.39857 |
| 1973 | 8.35026 |
| 1972 | 8.14816 |
| 1971 | 7.92623 |
| 1970 | 7.71127 |
| 1969 | 7.52975 |
| 1968 | 7.36312 |
| 1967 | 7.24585 |
| 1966 | 7.21392 |
| 1965 | 7.2335 |
| 1964 | 7.31017 |
| 1963 | 7.42756 |
| 1962 | 7.5474 |
| 1961 | 7.62101 |
| 1960 | 7.60874 |