| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | 6.46292 |
| 2021 | 6.57808 |
| 2020 | 6.6922 |
| 2019 | 6.80247 |
| 2018 | 6.91623 |
| 2017 | 7.02643 |
| 2016 | 7.15713 |
| 2015 | 7.35463 |
| 2014 | 7.49985 |
| 2013 | 7.537 |
| 2012 | 7.5519 |
| 2011 | 7.52808 |
| 2010 | 7.42942 |
| 2009 | 7.3761 |
| 2008 | 7.40294 |
| 2007 | 7.4382 |
| 2006 | 7.53488 |
| 2005 | 7.66868 |
| 2004 | 7.74151 |
| 2003 | 7.84646 |
| 2002 | 8.05155 |
| 2001 | 8.28483 |
| 2000 | 8.56211 |
| 1999 | 8.93676 |
| 1998 | 9.35939 |
| 1997 | 9.79659 |
| 1996 | 10.305 |
| 1995 | 10.8905 |
| 1994 | 11.3324 |
| 1993 | 11.4858 |
| 1992 | 11.4817 |
| 1991 | 11.3543 |
| 1990 | 11.281 |
| 1989 | 11.3293 |
| 1988 | 11.4746 |
| 1987 | 11.6589 |
| 1986 | 11.7843 |
| 1985 | 11.9341 |
| 1984 | 12.0397 |
| 1983 | 11.9415 |
| 1982 | 11.8064 |
| 1981 | 11.8425 |
| 1980 | 11.8589 |
| 1979 | 12.0747 |
| 1978 | 12.7279 |
| 1977 | 13.609 |
| 1976 | 14.665 |
| 1975 | 15.8918 |
| 1974 | 16.5612 |
| 1973 | 16.4278 |
| 1972 | 15.9708 |
| 1971 | 15.215 |
| 1970 | 14.1725 |
| 1969 | 13.8632 |
| 1968 | 14.4323 |
| 1967 | 14.7982 |
| 1966 | 14.8908 |
| 1965 | 14.7438 |
| 1964 | 14.4822 |
| 1963 | 14.35 |
| 1962 | 14.3851 |
| 1961 | 14.4292 |
| 1960 | 14.8721 |