| 年份 | 美属萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 0.916655 |
| 2021 | 0.865898 |
| 2020 | 0.818045 |
| 2019 | 0.781831 |
| 2018 | 0.76241 |
| 2017 | 0.746948 |
| 2016 | 0.732964 |
| 2015 | 0.712926 |
| 2014 | 0.690866 |
| 2013 | 0.65724 |
| 2012 | 0.614508 |
| 2011 | 0.583 |
| 2010 | 0.554943 |
| 2009 | 0.536481 |
| 2008 | 0.543084 |
| 2007 | 0.551847 |
| 2006 | 0.543535 |
| 2005 | 0.52715 |
| 2004 | 0.502848 |
| 2003 | 0.479274 |
| 2002 | 0.456552 |
| 2001 | 0.443141 |
| 2000 | 0.440024 |
| 1999 | 0.435967 |
| 1998 | 0.443313 |
| 1997 | 0.4565 |
| 1996 | 0.468792 |
| 1995 | 0.490878 |
| 1994 | 0.517767 |
| 1993 | 0.532483 |
| 1992 | 0.543732 |
| 1991 | 0.55738 |
| 1990 | 0.562404 |
| 1989 | 0.544976 |
| 1988 | 0.507592 |
| 1987 | 0.459634 |
| 1986 | 0.423568 |
| 1985 | 0.413294 |
| 1984 | 0.414322 |
| 1983 | 0.428078 |
| 1982 | 0.453252 |
| 1981 | 0.476861 |
| 1980 | 0.500208 |
| 1979 | 0.510298 |
| 1978 | 0.476665 |
| 1977 | 0.432116 |
| 1976 | 0.389017 |
| 1975 | 0.347533 |
| 1974 | 0.330645 |
| 1973 | 0.326124 |
| 1972 | 0.328327 |
| 1971 | 0.344877 |
| 1970 | 0.366194 |
| 1969 | 0.38656 |
| 1968 | 0.397949 |
| 1967 | 0.386207 |
| 1966 | 0.36526 |
| 1965 | 0.355425 |
| 1964 | 0.362178 |
| 1963 | 0.386804 |
| 1962 | 0.421651 |
| 1961 | 0.443941 |
| 1960 | 0.470235 |