| 年份 | 美属萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | -1.67739 |
| 2021 | -2.51044 |
| 2020 | -2.41502 |
| 2019 | -2.31069 |
| 2018 | -2.1426 |
| 2017 | -2.0045 |
| 2016 | -1.85136 |
| 2015 | -1.69711 |
| 2014 | -1.54789 |
| 2013 | -1.38803 |
| 2012 | -1.23865 |
| 2011 | -1.09245 |
| 2010 | -1.05593 |
| 2009 | -1.0612 |
| 2008 | -0.991563 |
| 2007 | -0.915871 |
| 2006 | -0.844139 |
| 2005 | -0.758402 |
| 2004 | -0.656962 |
| 2003 | -0.516646 |
| 2002 | -0.361039 |
| 2001 | 0.0523281 |
| 2000 | 1.61423 |
| 1999 | 2.49148 |
| 1998 | 2.62562 |
| 1997 | 2.80299 |
| 1996 | 2.92774 |
| 1995 | 3.04094 |
| 1994 | 3.14333 |
| 1993 | 3.20434 |
| 1992 | 3.28799 |
| 1991 | 3.57788 |
| 1990 | 4.10287 |
| 1989 | 4.62176 |
| 1988 | 4.65066 |
| 1987 | 4.65763 |
| 1986 | 4.68074 |
| 1985 | 4.69292 |
| 1984 | 4.70655 |
| 1983 | 4.69611 |
| 1982 | 4.69645 |
| 1981 | 4.46047 |
| 1980 | 3.20919 |
| 1979 | 2.45036 |
| 1978 | 2.48084 |
| 1977 | 2.54851 |
| 1976 | 2.62451 |
| 1975 | 2.45069 |
| 1974 | 2.22291 |
| 1973 | 2.19833 |
| 1972 | 2.25286 |
| 1971 | 2.46209 |
| 1970 | 3.11259 |
| 1969 | 3.6103 |
| 1968 | 3.6058 |
| 1967 | 3.56567 |
| 1966 | 3.68502 |
| 1965 | 3.80652 |
| 1964 | 3.79503 |
| 1963 | 3.76235 |
| 1962 | 3.72741 |
| 1961 | 3.30615 |
| 1960 | - |