| 年份 | 美属萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 9.42029 |
| 2021 | 9.47104 |
| 2020 | 9.69874 |
| 2019 | 9.91523 |
| 2018 | 10.1289 |
| 2017 | 10.3318 |
| 2016 | 10.4972 |
| 2015 | 10.6123 |
| 2014 | 10.676 |
| 2013 | 10.7093 |
| 2012 | 10.7668 |
| 2011 | 10.8997 |
| 2010 | 11.1585 |
| 2009 | 11.554 |
| 2008 | 12.0469 |
| 2007 | 12.5383 |
| 2006 | 12.8833 |
| 2005 | 12.9893 |
| 2004 | 12.826 |
| 2003 | 12.4458 |
| 2002 | 11.9667 |
| 2001 | 11.4981 |
| 2000 | 11.1203 |
| 1999 | 10.8907 |
| 1998 | 10.7832 |
| 1997 | 10.7445 |
| 1996 | 10.7535 |
| 1995 | 10.7883 |
| 1994 | 10.832 |
| 1993 | 10.8959 |
| 1992 | 10.9799 |
| 1991 | 11.068 |
| 1990 | 11.1523 |
| 1989 | 11.2046 |
| 1988 | 11.2327 |
| 1987 | 11.2929 |
| 1986 | 11.4103 |
| 1985 | 11.6018 |
| 1984 | 11.8772 |
| 1983 | 12.2148 |
| 1982 | 12.575 |
| 1981 | 12.9011 |
| 1980 | 13.1543 |
| 1979 | 13.3319 |
| 1978 | 13.4494 |
| 1977 | 13.5036 |
| 1976 | 13.4794 |
| 1975 | 13.3916 |
| 1974 | 13.2967 |
| 1973 | 13.2235 |
| 1972 | 13.1715 |
| 1971 | 13.1729 |
| 1970 | 13.2773 |
| 1969 | 13.4255 |
| 1968 | 13.5609 |
| 1967 | 13.7025 |
| 1966 | 13.819 |
| 1965 | 13.8616 |
| 1964 | 13.8878 |
| 1963 | 14.005 |
| 1962 | 14.2307 |
| 1961 | 14.5839 |
| 1960 | 14.9699 |