| 年份 | 美属萨摩亚 |
|---|---|
| 2023 | - |
| 2022 | 9.14826 |
| 2021 | 9.32523 |
| 2020 | 9.53295 |
| 2019 | 9.77926 |
| 2018 | 10.0398 |
| 2017 | 10.2953 |
| 2016 | 10.5428 |
| 2015 | 10.791 |
| 2014 | 11.0424 |
| 2013 | 11.2989 |
| 2012 | 11.5516 |
| 2011 | 11.7989 |
| 2010 | 12.0443 |
| 2009 | 12.1924 |
| 2008 | 12.261 |
| 2007 | 12.3579 |
| 2006 | 12.4874 |
| 2005 | 12.6705 |
| 2004 | 12.8979 |
| 2003 | 13.1477 |
| 2002 | 13.4683 |
| 2001 | 13.9126 |
| 2000 | 14.4399 |
| 1999 | 14.9591 |
| 1998 | 15.445 |
| 1997 | 15.8524 |
| 1996 | 16.115 |
| 1995 | 16.2539 |
| 1994 | 16.3068 |
| 1993 | 16.2951 |
| 1992 | 16.2496 |
| 1991 | 16.1819 |
| 1990 | 16.0795 |
| 1989 | 15.9516 |
| 1988 | 15.8316 |
| 1987 | 15.7277 |
| 1986 | 15.6365 |
| 1985 | 15.5502 |
| 1984 | 15.468 |
| 1983 | 15.4002 |
| 1982 | 15.3553 |
| 1981 | 15.34 |
| 1980 | 15.3725 |
| 1979 | 15.4617 |
| 1978 | 15.5991 |
| 1977 | 15.7818 |
| 1976 | 16.0307 |
| 1975 | 16.3704 |
| 1974 | 16.7347 |
| 1973 | 17.0511 |
| 1972 | 17.293 |
| 1971 | 17.4643 |
| 1970 | 17.6136 |
| 1969 | 17.8152 |
| 1968 | 18.0034 |
| 1967 | 18.136 |
| 1966 | 18.2508 |
| 1965 | 18.294 |
| 1964 | 18.3029 |
| 1963 | 18.3443 |
| 1962 | 18.4289 |
| 1961 | 18.5511 |
| 1960 | 18.6736 |