| 年份 | 美属萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | -1.90449 |
| 2021 | -2.66409 |
| 2020 | -2.46351 |
| 2019 | -2.25971 |
| 2018 | -1.9894 |
| 2017 | -1.7495 |
| 2016 | -1.5061 |
| 2015 | -1.24301 |
| 2014 | -1.00428 |
| 2013 | -0.728141 |
| 2012 | -0.502143 |
| 2011 | -0.250129 |
| 2010 | -0.102813 |
| 2009 | -0.102707 |
| 2008 | -0.043985 |
| 2007 | 0.0293212 |
| 2006 | 0.102692 |
| 2005 | 0.176289 |
| 2004 | 0.294508 |
| 2003 | 0.428583 |
| 2002 | 0.579281 |
| 2001 | 1.00308 |
| 2000 | -2.81876 |
| 1999 | -3.70466 |
| 1998 | -3.5723 |
| 1997 | -3.40965 |
| 1996 | -3.28449 |
| 1995 | -3.14306 |
| 1994 | -3.07119 |
| 1993 | -2.99127 |
| 1992 | -2.91566 |
| 1991 | -2.62471 |
| 1990 | -0.284994 |
| 1989 | 0.857431 |
| 1988 | 0.864846 |
| 1987 | 0.894861 |
| 1986 | 0.902941 |
| 1985 | 0.92261 |
| 1984 | 0.919652 |
| 1983 | 0.928189 |
| 1982 | 0.925119 |
| 1981 | 0.684692 |
| 1980 | 0.8207 |
| 1979 | 0.526884 |
| 1978 | 0.553818 |
| 1977 | 0.617622 |
| 1976 | 0.682597 |
| 1975 | 0.527317 |
| 1974 | 0.29553 |
| 1973 | 0.271672 |
| 1972 | 0.309617 |
| 1971 | 0.534794 |
| 1970 | 1.19176 |
| 1969 | 1.69269 |
| 1968 | 1.66962 |
| 1967 | 1.63162 |
| 1966 | 1.75314 |
| 1965 | 1.88068 |
| 1964 | 1.86065 |
| 1963 | 1.83881 |
| 1962 | 1.78602 |
| 1961 | 1.3755 |
| 1960 | - |