| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 17.7734 |
| 2020 | 17.7734 |
| 2019 | 17.7734 |
| 2018 | 19.8453 |
| 2017 | 22.3022 |
| 2016 | 24.3145 |
| 2015 | 26.7208 |
| 2014 | 23.8516 |
| 2013 | 21.5548 |
| 2012 | 19.2579 |
| 2011 | 16.9611 |
| 2010 | 14.6643 |
| 2009 | 12.3322 |
| 2008 | 13.0742 |
| 2007 | 13.6042 |
| 2006 | 14.2049 |
| 2005 | 14.841 |
| 2004 | 15.1943 |
| 2003 | 15.9011 |
| 2002 | 16.6078 |
| 2001 | 16.9611 |
| 2000 | 16.9611 |
| 1999 | 17.9505 |
| 1998 | 18.0212 |
| 1997 | 18.0212 |
| 1996 | 18.0212 |
| 1995 | 18.0212 |
| 1994 | 18.0212 |
| 1993 | 18.3746 |
| 1992 | 18.3746 |
| 1991 | 19.0813 |
| 1990 | 19.0813 |
| 1989 | 19.1519 |
| 1988 | 27.2085 |
| 1987 | 27.1025 |
| 1986 | 27.7032 |
| 1985 | 27.5618 |
| 1984 | 27.5618 |
| 1983 | 27.4205 |
| 1982 | 27.2085 |
| 1981 | 27.2085 |
| 1980 | 26.1484 |
| 1979 | 25.9717 |
| 1978 | 25.0883 |
| 1977 | 25.0883 |
| 1976 | 24.3816 |
| 1975 | 22.9682 |
| 1974 | 22.6148 |
| 1973 | 22.6148 |
| 1972 | 22.6148 |
| 1971 | 22.6148 |
| 1970 | 22.4382 |
| 1969 | 22.2615 |
| 1968 | 22.2615 |
| 1967 | 21.9081 |
| 1966 | 21.9081 |
| 1965 | 21.9081 |
| 1964 | 20.1413 |
| 1963 | 20.1413 |
| 1962 | 20.1413 |
| 1961 | 19.788 |
| 1960 | - |