| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 8.17883 |
| 2021 | 8.28534 |
| 2020 | 8.38307 |
| 2019 | 8.49709 |
| 2018 | 8.61188 |
| 2017 | 8.70255 |
| 2016 | 8.76662 |
| 2015 | 8.73704 |
| 2014 | 8.57618 |
| 2013 | 8.33581 |
| 2012 | 8.05372 |
| 2011 | 7.76169 |
| 2010 | 7.54675 |
| 2009 | 7.44368 |
| 2008 | 7.41223 |
| 2007 | 7.4445 |
| 2006 | 7.5477 |
| 2005 | 7.7105 |
| 2004 | 7.90074 |
| 2003 | 8.10378 |
| 2002 | 8.29824 |
| 2001 | 8.54001 |
| 2000 | 8.82236 |
| 1999 | 9.06999 |
| 1998 | 9.27439 |
| 1997 | 9.41987 |
| 1996 | 9.47997 |
| 1995 | 9.45643 |
| 1994 | 9.38788 |
| 1993 | 9.3001 |
| 1992 | 9.23589 |
| 1991 | 9.30719 |
| 1990 | 9.53722 |
| 1989 | 9.77221 |
| 1988 | 9.88776 |
| 1987 | 9.85865 |
| 1986 | 9.81909 |
| 1985 | 9.85086 |
| 1984 | 9.85115 |
| 1983 | 9.75154 |
| 1982 | 9.53618 |
| 1981 | 9.29293 |
| 1980 | 9.06049 |
| 1979 | 8.76642 |
| 1978 | 8.385 |
| 1977 | 7.94324 |
| 1976 | 7.7637 |
| 1975 | 7.91207 |
| 1974 | 8.02061 |
| 1973 | 7.90915 |
| 1972 | 7.64903 |
| 1971 | 7.3952 |
| 1970 | 7.18341 |
| 1969 | 7.04675 |
| 1968 | 6.95169 |
| 1967 | 6.90187 |
| 1966 | 6.95578 |
| 1965 | 7.07043 |
| 1964 | 7.22383 |
| 1963 | 7.42449 |
| 1962 | 7.6561 |
| 1961 | 7.84563 |
| 1960 | 7.98849 |