| 年份 | 美属萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 8.70022 |
| 2021 | 8.76666 |
| 2020 | 8.8916 |
| 2019 | 8.95069 |
| 2018 | 8.97489 |
| 2017 | 9.02613 |
| 2016 | 9.16204 |
| 2015 | 9.43316 |
| 2014 | 9.85534 |
| 2013 | 10.3712 |
| 2012 | 10.8594 |
| 2011 | 11.2013 |
| 2010 | 11.3122 |
| 2009 | 11.1284 |
| 2008 | 10.6848 |
| 2007 | 10.1277 |
| 2006 | 9.59261 |
| 2005 | 9.15622 |
| 2004 | 8.91614 |
| 2003 | 8.85807 |
| 2002 | 8.89599 |
| 2001 | 8.9892 |
| 2000 | 9.08371 |
| 1999 | 9.12807 |
| 1998 | 9.15199 |
| 1997 | 9.19874 |
| 1996 | 9.26987 |
| 1995 | 9.35966 |
| 1994 | 9.44877 |
| 1993 | 9.52744 |
| 1992 | 9.5962 |
| 1991 | 9.66259 |
| 1990 | 9.77076 |
| 1989 | 9.97791 |
| 1988 | 10.2766 |
| 1987 | 10.6239 |
| 1986 | 10.9584 |
| 1985 | 11.2155 |
| 1984 | 11.3632 |
| 1983 | 11.4225 |
| 1982 | 11.4335 |
| 1981 | 11.4073 |
| 1980 | 11.35 |
| 1979 | 11.254 |
| 1978 | 11.1097 |
| 1977 | 10.9332 |
| 1976 | 10.7336 |
| 1975 | 10.4856 |
| 1974 | 10.2466 |
| 1973 | 10.1854 |
| 1972 | 10.4226 |
| 1971 | 10.9365 |
| 1970 | 11.4427 |
| 1969 | 11.5039 |
| 1968 | 11.2344 |
| 1967 | 10.9951 |
| 1966 | 10.8685 |
| 1965 | 10.9513 |
| 1964 | 11.193 |
| 1963 | 11.4885 |
| 1962 | 11.7558 |
| 1961 | 11.8731 |
| 1960 | 11.7074 |