| 年份 | 美属萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 0.928592 |
| 2021 | 0.88587 |
| 2020 | 0.848787 |
| 2019 | 0.81981 |
| 2018 | 0.77604 |
| 2017 | 0.728925 |
| 2016 | 0.702158 |
| 2015 | 0.676968 |
| 2014 | 0.668781 |
| 2013 | 0.67884 |
| 2012 | 0.687833 |
| 2011 | 0.697549 |
| 2010 | 0.70249 |
| 2009 | 0.70605 |
| 2008 | 0.709477 |
| 2007 | 0.691401 |
| 2006 | 0.652534 |
| 2005 | 0.609281 |
| 2004 | 0.574105 |
| 2003 | 0.543459 |
| 2002 | 0.52259 |
| 2001 | 0.518334 |
| 2000 | 0.51099 |
| 1999 | 0.510023 |
| 1998 | 0.517499 |
| 1997 | 0.518201 |
| 1996 | 0.51383 |
| 1995 | 0.513351 |
| 1994 | 0.507068 |
| 1993 | 0.488469 |
| 1992 | 0.462707 |
| 1991 | 0.431432 |
| 1990 | 0.41451 |
| 1989 | 0.417305 |
| 1988 | 0.424374 |
| 1987 | 0.436074 |
| 1986 | 0.45295 |
| 1985 | 0.462795 |
| 1984 | 0.464604 |
| 1983 | 0.460123 |
| 1982 | 0.442836 |
| 1981 | 0.411313 |
| 1980 | 0.382166 |
| 1979 | 0.369839 |
| 1978 | 0.351128 |
| 1977 | 0.324955 |
| 1976 | 0.328279 |
| 1975 | 0.36292 |
| 1974 | 0.387529 |
| 1973 | 0.401031 |
| 1972 | 0.429153 |
| 1971 | 0.458224 |
| 1970 | 0.455418 |
| 1969 | 0.428754 |
| 1968 | 0.390703 |
| 1967 | 0.361827 |
| 1966 | 0.351635 |
| 1965 | 0.354222 |
| 1964 | 0.370722 |
| 1963 | 0.378399 |
| 1962 | 0.381182 |
| 1961 | 0.383504 |
| 1960 | 0.388886 |