| 年份 | 美属萨摩亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | -1.7065 | 
| 2021 | -2.53017 | 
| 2020 | -2.42125 | 
| 2019 | -2.30414 | 
| 2018 | -2.12294 | 
| 2017 | -1.97182 | 
| 2016 | -1.80723 | 
| 2015 | -1.63927 | 
| 2014 | -1.47895 | 
| 2013 | -1.30478 | 
| 2012 | -1.1463 | 
| 2011 | -0.987558 | 
| 2010 | -0.938173 | 
| 2009 | -0.943768 | 
| 2008 | -0.876433 | 
| 2007 | -0.801983 | 
| 2006 | -0.730999 | 
| 2005 | -0.647635 | 
| 2004 | -0.54514 | 
| 2003 | -0.406484 | 
| 2002 | -0.252358 | 
| 2001 | 0.161299 | 
| 2000 | 1.09823 | 
| 1999 | 1.73564 | 
| 1998 | 1.82745 | 
| 1997 | 1.95867 | 
| 1996 | 2.03712 | 
| 1995 | 2.10626 | 
| 1994 | 2.15353 | 
| 1993 | 2.16498 | 
| 1992 | 2.19248 | 
| 1991 | 2.42549 | 
| 1990 | 3.25194 | 
| 1989 | 3.86747 | 
| 1988 | 3.86891 | 
| 1987 | 3.85711 | 
| 1986 | 3.85291 | 
| 1985 | 3.84213 | 
| 1984 | 3.82675 | 
| 1983 | 3.79508 | 
| 1982 | 3.76849 | 
| 1981 | 3.50473 | 
| 1980 | 2.59059 | 
| 1979 | 1.94419 | 
| 1978 | 1.96652 | 
| 1977 | 2.02583 | 
| 1976 | 2.09139 | 
| 1975 | 1.91522 | 
| 1974 | 1.67884 | 
| 1973 | 1.64691 | 
| 1972 | 1.68899 | 
| 1971 | 1.89513 | 
| 1970 | 2.53983 | 
| 1969 | 3.03077 | 
| 1968 | 3.01275 | 
| 1967 | 2.9653 | 
| 1966 | 3.0773 | 
| 1965 | 3.19266 | 
| 1964 | 3.17031 | 
| 1963 | 3.13299 | 
| 1962 | 3.08392 | 
| 1961 | 2.65791 | 
| 1960 | - |