| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | 5.43592 |
| 2021 | 5.56828 |
| 2020 | 5.69856 |
| 2019 | 5.82516 |
| 2018 | 5.95405 |
| 2017 | 6.07791 |
| 2016 | 6.21566 |
| 2015 | 6.41022 |
| 2014 | 6.61594 |
| 2013 | 6.7592 |
| 2012 | 6.84352 |
| 2011 | 6.86619 |
| 2010 | 6.79909 |
| 2009 | 6.68629 |
| 2008 | 6.59983 |
| 2007 | 6.57324 |
| 2006 | 6.63935 |
| 2005 | 6.76518 |
| 2004 | 6.81498 |
| 2003 | 6.86851 |
| 2002 | 7.02978 |
| 2001 | 7.23078 |
| 2000 | 7.47848 |
| 1999 | 7.85764 |
| 1998 | 8.31618 |
| 1997 | 8.77509 |
| 1996 | 9.28621 |
| 1995 | 9.85843 |
| 1994 | 10.2978 |
| 1993 | 10.4771 |
| 1992 | 10.5211 |
| 1991 | 10.4575 |
| 1990 | 10.4092 |
| 1989 | 10.4355 |
| 1988 | 10.5375 |
| 1987 | 10.6599 |
| 1986 | 10.7209 |
| 1985 | 10.8093 |
| 1984 | 10.8631 |
| 1983 | 10.7741 |
| 1982 | 10.6808 |
| 1981 | 10.6893 |
| 1980 | 10.6837 |
| 1979 | 10.9498 |
| 1978 | 11.616 |
| 1977 | 12.4956 |
| 1976 | 13.5867 |
| 1975 | 14.8271 |
| 1974 | 15.5625 |
| 1973 | 15.5949 |
| 1972 | 15.3678 |
| 1971 | 14.8746 |
| 1970 | 14.0314 |
| 1969 | 13.7749 |
| 1968 | 14.3067 |
| 1967 | 14.6289 |
| 1966 | 14.7277 |
| 1965 | 14.6504 |
| 1964 | 14.6089 |
| 1963 | 14.8473 |
| 1962 | 15.292 |
| 1961 | 15.7867 |
| 1960 | 15.6926 |