| 年份 | 萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 3.68997 |
| 2021 | 3.65574 |
| 2020 | 3.62205 |
| 2019 | 3.57571 |
| 2018 | 3.51405 |
| 2017 | 3.44519 |
| 2016 | 3.37205 |
| 2015 | 3.28981 |
| 2014 | 3.19961 |
| 2013 | 3.10799 |
| 2012 | 3.01676 |
| 2011 | 2.93574 |
| 2010 | 2.86736 |
| 2009 | 2.80135 |
| 2008 | 2.7344 |
| 2007 | 2.66219 |
| 2006 | 2.57482 |
| 2005 | 2.48281 |
| 2004 | 2.41007 |
| 2003 | 2.35964 |
| 2002 | 2.33341 |
| 2001 | 2.33043 |
| 2000 | 2.34222 |
| 1999 | 2.36248 |
| 1998 | 2.38398 |
| 1997 | 2.40379 |
| 1996 | 2.42379 |
| 1995 | 2.44064 |
| 1994 | 2.44762 |
| 1993 | 2.44891 |
| 1992 | 2.44361 |
| 1991 | 2.44219 |
| 1990 | 2.44881 |
| 1989 | 2.45757 |
| 1988 | 2.47782 |
| 1987 | 2.50601 |
| 1986 | 2.52762 |
| 1985 | 2.54566 |
| 1984 | 2.56102 |
| 1983 | 2.55825 |
| 1982 | 2.52834 |
| 1981 | 2.47353 |
| 1980 | 2.40586 |
| 1979 | 2.33429 |
| 1978 | 2.26286 |
| 1977 | 2.19601 |
| 1976 | 2.13973 |
| 1975 | 2.09175 |
| 1974 | 2.03642 |
| 1973 | 1.96853 |
| 1972 | 1.89964 |
| 1971 | 1.83554 |
| 1970 | 1.78744 |
| 1969 | 1.75527 |
| 1968 | 1.7276 |
| 1967 | 1.7075 |
| 1966 | 1.70022 |
| 1965 | 1.70213 |
| 1964 | 1.71356 |
| 1963 | 1.73537 |
| 1962 | 1.76679 |
| 1961 | 1.7923 |
| 1960 | 1.80631 |