| 年份 | 美属萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 7.7033 |
| 2021 | 7.75521 |
| 2020 | 7.93777 |
| 2019 | 8.14134 |
| 2018 | 8.38205 |
| 2017 | 8.66633 |
| 2016 | 8.99714 |
| 2015 | 9.40536 |
| 2014 | 9.87797 |
| 2013 | 10.3741 |
| 2012 | 10.8273 |
| 2011 | 11.1311 |
| 2010 | 11.1994 |
| 2009 | 11.0213 |
| 2008 | 10.6349 |
| 2007 | 10.125 |
| 2006 | 9.61329 |
| 2005 | 9.18526 |
| 2004 | 8.89159 |
| 2003 | 8.7234 |
| 2002 | 8.63585 |
| 2001 | 8.58654 |
| 2000 | 8.55908 |
| 1999 | 8.54998 |
| 1998 | 8.5721 |
| 1997 | 8.62199 |
| 1996 | 8.68261 |
| 1995 | 8.75761 |
| 1994 | 8.87075 |
| 1993 | 9.04268 |
| 1992 | 9.26643 |
| 1991 | 9.53757 |
| 1990 | 9.86233 |
| 1989 | 10.1996 |
| 1988 | 10.5033 |
| 1987 | 10.7653 |
| 1986 | 10.9529 |
| 1985 | 11.0993 |
| 1984 | 11.2472 |
| 1983 | 11.3915 |
| 1982 | 11.5658 |
| 1981 | 11.811 |
| 1980 | 12.0646 |
| 1979 | 12.1696 |
| 1978 | 12.0879 |
| 1977 | 11.8808 |
| 1976 | 11.6455 |
| 1975 | 11.4821 |
| 1974 | 11.4356 |
| 1973 | 11.4509 |
| 1972 | 11.3944 |
| 1971 | 11.2708 |
| 1970 | 11.1521 |
| 1969 | 11.0588 |
| 1968 | 11.0114 |
| 1967 | 11.0275 |
| 1966 | 11.0702 |
| 1965 | 11.0858 |
| 1964 | 11.0358 |
| 1963 | 10.9035 |
| 1962 | 10.7117 |
| 1961 | 10.4692 |
| 1960 | 10.2543 |