| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | 6.93967 |
| 2021 | 7.0706 |
| 2020 | 7.19611 |
| 2019 | 7.29105 |
| 2018 | 7.34753 |
| 2017 | 7.38705 |
| 2016 | 7.41677 |
| 2015 | 7.43934 |
| 2014 | 7.4554 |
| 2013 | 7.46011 |
| 2012 | 7.45445 |
| 2011 | 7.43444 |
| 2010 | 7.39019 |
| 2009 | 7.32278 |
| 2008 | 7.24747 |
| 2007 | 7.20012 |
| 2006 | 7.19766 |
| 2005 | 7.23792 |
| 2004 | 7.2899 |
| 2003 | 7.32463 |
| 2002 | 7.35226 |
| 2001 | 7.36362 |
| 2000 | 7.34577 |
| 1999 | 7.30363 |
| 1998 | 7.25632 |
| 1997 | 7.17366 |
| 1996 | 6.97019 |
| 1995 | 6.69088 |
| 1994 | 6.40663 |
| 1993 | 6.05454 |
| 1992 | 5.72035 |
| 1991 | 5.50607 |
| 1990 | 5.24567 |
| 1989 | 4.94641 |
| 1988 | 4.72712 |
| 1987 | 4.51939 |
| 1986 | 4.28153 |
| 1985 | 4.09546 |
| 1984 | 3.94512 |
| 1983 | 3.8099 |
| 1982 | 3.73437 |
| 1981 | 3.68743 |
| 1980 | 3.63243 |
| 1979 | 3.58225 |
| 1978 | 3.57797 |
| 1977 | 3.58779 |
| 1976 | 3.59649 |
| 1975 | 3.60624 |
| 1974 | 3.60103 |
| 1973 | 3.57421 |
| 1972 | 3.53298 |
| 1971 | 3.48873 |
| 1970 | 3.46694 |
| 1969 | 3.48911 |
| 1968 | 3.54836 |
| 1967 | 3.65155 |
| 1966 | 3.79547 |
| 1965 | 3.9509 |
| 1964 | 4.03725 |
| 1963 | 4.03735 |
| 1962 | 4.01421 |
| 1961 | 3.9547 |
| 1960 | 3.91243 |