| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 12.9262 |
| 2021 | 13.1233 |
| 2020 | 13.3472 |
| 2019 | 13.5627 |
| 2018 | 13.7618 |
| 2017 | 13.9582 |
| 2016 | 14.1378 |
| 2015 | 14.2613 |
| 2014 | 14.3043 |
| 2013 | 14.2781 |
| 2012 | 14.1973 |
| 2011 | 14.0869 |
| 2010 | 13.983 |
| 2009 | 13.9127 |
| 2008 | 13.8821 |
| 2007 | 13.8865 |
| 2006 | 13.9761 |
| 2005 | 14.1526 |
| 2004 | 14.367 |
| 2003 | 14.6226 |
| 2002 | 14.918 |
| 2001 | 15.1605 |
| 2000 | 15.3307 |
| 1999 | 15.4863 |
| 1998 | 15.6007 |
| 1997 | 15.6615 |
| 1996 | 15.6773 |
| 1995 | 15.5807 |
| 1994 | 15.3538 |
| 1993 | 15.0792 |
| 1992 | 14.7857 |
| 1991 | 14.6432 |
| 1990 | 14.7501 |
| 1989 | 14.9862 |
| 1988 | 15.2367 |
| 1987 | 15.3815 |
| 1986 | 15.2597 |
| 1985 | 15.0454 |
| 1984 | 15.0191 |
| 1983 | 15.1456 |
| 1982 | 15.347 |
| 1981 | 15.5334 |
| 1980 | 15.698 |
| 1979 | 15.9008 |
| 1978 | 16.1347 |
| 1977 | 16.3588 |
| 1976 | 16.6601 |
| 1975 | 17.1101 |
| 1974 | 17.6347 |
| 1973 | 18.0252 |
| 1972 | 18.2495 |
| 1971 | 18.4545 |
| 1970 | 18.6511 |
| 1969 | 18.8599 |
| 1968 | 19.1008 |
| 1967 | 19.394 |
| 1966 | 19.6738 |
| 1965 | 19.8953 |
| 1964 | 20.1009 |
| 1963 | 20.2556 |
| 1962 | 20.359 |
| 1961 | 20.4937 |
| 1960 | 20.6494 |