| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 3.897 |
| 2021 | 3.89783 |
| 2020 | 3.94794 |
| 2019 | 4.01315 |
| 2018 | 4.06959 |
| 2017 | 4.10696 |
| 2016 | 4.11044 |
| 2015 | 4.08121 |
| 2014 | 4.02335 |
| 2013 | 3.95108 |
| 2012 | 3.87576 |
| 2011 | 3.81645 |
| 2010 | 3.77602 |
| 2009 | 3.74184 |
| 2008 | 3.70665 |
| 2007 | 3.66372 |
| 2006 | 3.57221 |
| 2005 | 3.42402 |
| 2004 | 3.26676 |
| 2003 | 3.1179 |
| 2002 | 2.98594 |
| 2001 | 2.90652 |
| 2000 | 2.88095 |
| 1999 | 2.87409 |
| 1998 | 2.88497 |
| 1997 | 2.91059 |
| 1996 | 2.94494 |
| 1995 | 2.98993 |
| 1994 | 3.03694 |
| 1993 | 3.07448 |
| 1992 | 3.09908 |
| 1991 | 3.10864 |
| 1990 | 3.09839 |
| 1989 | 3.07885 |
| 1988 | 3.07636 |
| 1987 | 3.0966 |
| 1986 | 3.09221 |
| 1985 | 3.05298 |
| 1984 | 3.03238 |
| 1983 | 3.04575 |
| 1982 | 3.07862 |
| 1981 | 3.09307 |
| 1980 | 3.07657 |
| 1979 | 3.04969 |
| 1978 | 3.02749 |
| 1977 | 3.01309 |
| 1976 | 2.92459 |
| 1975 | 2.75481 |
| 1974 | 2.60238 |
| 1973 | 2.5278 |
| 1972 | 2.50964 |
| 1971 | 2.48956 |
| 1970 | 2.46046 |
| 1969 | 2.41822 |
| 1968 | 2.36221 |
| 1967 | 2.29808 |
| 1966 | 2.25631 |
| 1965 | 2.23113 |
| 1964 | 2.19859 |
| 1963 | 2.16767 |
| 1962 | 2.14378 |
| 1961 | 2.14775 |
| 1960 | 2.17463 |