| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 3.93 |
| 2020 | 3.997 |
| 2019 | 4.047 |
| 2018 | 4.109 |
| 2017 | 4.183 |
| 2016 | 4.269 |
| 2015 | 4.357 |
| 2014 | 4.443 |
| 2013 | 4.525 |
| 2012 | 4.606 |
| 2011 | 4.639 |
| 2010 | 4.608 |
| 2009 | 4.549 |
| 2008 | 4.469 |
| 2007 | 4.391 |
| 2006 | 4.373 |
| 2005 | 4.374 |
| 2004 | 4.382 |
| 2003 | 4.4 |
| 2002 | 4.429 |
| 2001 | 4.465 |
| 2000 | 4.514 |
| 1999 | 4.555 |
| 1998 | 4.609 |
| 1997 | 4.66 |
| 1996 | 4.739 |
| 1995 | 4.802 |
| 1994 | 4.85 |
| 1993 | 4.874 |
| 1992 | 4.888 |
| 1991 | 4.892 |
| 1990 | 4.93 |
| 1989 | 4.99 |
| 1988 | 5.089 |
| 1987 | 5.19 |
| 1986 | 5.286 |
| 1985 | 5.344 |
| 1984 | 5.417 |
| 1983 | 5.531 |
| 1982 | 5.661 |
| 1981 | 5.784 |
| 1980 | 5.925 |
| 1979 | 6.083 |
| 1978 | 6.229 |
| 1977 | 6.378 |
| 1976 | 6.529 |
| 1975 | 6.679 |
| 1974 | 6.847 |
| 1973 | 7.024 |
| 1972 | 7.182 |
| 1971 | 7.337 |
| 1970 | 7.459 |
| 1969 | 7.547 |
| 1968 | 7.592 |
| 1967 | 7.612 |
| 1966 | 7.625 |
| 1965 | 7.651 |
| 1964 | 7.667 |
| 1963 | 7.656 |
| 1962 | 7.646 |
| 1961 | 7.641 |
| 1960 | 7.646 |