| 年份 | 萨摩亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 5.15059 | 
| 2021 | 5.22975 | 
| 2020 | 5.29177 | 
| 2019 | 5.3364 | 
| 2018 | 5.35562 | 
| 2017 | 5.33935 | 
| 2016 | 5.27112 | 
| 2015 | 5.1595 | 
| 2014 | 5.03758 | 
| 2013 | 4.92923 | 
| 2012 | 4.86271 | 
| 2011 | 4.88286 | 
| 2010 | 4.97743 | 
| 2009 | 5.08811 | 
| 2008 | 5.18555 | 
| 2007 | 5.24659 | 
| 2006 | 5.23498 | 
| 2005 | 5.16155 | 
| 2004 | 5.06547 | 
| 2003 | 4.96262 | 
| 2002 | 4.86385 | 
| 2001 | 4.75929 | 
| 2000 | 4.64621 | 
| 1999 | 4.53671 | 
| 1998 | 4.43195 | 
| 1997 | 4.33074 | 
| 1996 | 4.22932 | 
| 1995 | 4.12621 | 
| 1994 | 4.02944 | 
| 1993 | 3.94291 | 
| 1992 | 3.86642 | 
| 1991 | 3.81132 | 
| 1990 | 3.77438 | 
| 1989 | 3.76478 | 
| 1988 | 3.80381 | 
| 1987 | 3.87598 | 
| 1986 | 3.90718 | 
| 1985 | 3.88405 | 
| 1984 | 3.86311 | 
| 1983 | 3.85645 | 
| 1982 | 3.8612 | 
| 1981 | 3.87648 | 
| 1980 | 3.8899 | 
| 1979 | 3.88794 | 
| 1978 | 3.88251 | 
| 1977 | 3.88395 | 
| 1976 | 3.87627 | 
| 1975 | 3.8853 | 
| 1974 | 3.95456 | 
| 1973 | 4.0431 | 
| 1972 | 4.09564 | 
| 1971 | 4.08934 | 
| 1970 | 4.02173 | 
| 1969 | 3.90454 | 
| 1968 | 3.76259 | 
| 1967 | 3.62489 | 
| 1966 | 3.53239 | 
| 1965 | 3.48978 | 
| 1964 | 3.4694 | 
| 1963 | 3.47079 | 
| 1962 | 3.4845 | 
| 1961 | 3.49803 | 
| 1960 | 3.51545 |