| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | 5.87659 |
| 2021 | 6.04403 |
| 2020 | 6.17117 |
| 2019 | 6.23636 |
| 2018 | 6.22864 |
| 2017 | 6.19439 |
| 2016 | 6.15616 |
| 2015 | 6.12744 |
| 2014 | 6.11817 |
| 2013 | 6.13546 |
| 2012 | 6.18693 |
| 2011 | 6.26345 |
| 2010 | 6.3614 |
| 2009 | 6.49454 |
| 2008 | 6.65117 |
| 2007 | 6.77589 |
| 2006 | 6.86718 |
| 2005 | 6.96508 |
| 2004 | 7.09239 |
| 2003 | 7.24519 |
| 2002 | 7.39846 |
| 2001 | 7.51948 |
| 2000 | 7.55987 |
| 1999 | 7.55974 |
| 1998 | 7.51611 |
| 1997 | 7.39568 |
| 1996 | 7.36832 |
| 1995 | 7.47437 |
| 1994 | 7.50127 |
| 1993 | 7.4721 |
| 1992 | 7.48788 |
| 1991 | 7.46565 |
| 1990 | 7.47008 |
| 1989 | 7.59696 |
| 1988 | 7.71237 |
| 1987 | 7.80821 |
| 1986 | 7.96888 |
| 1985 | 8.14361 |
| 1984 | 8.23205 |
| 1983 | 8.25908 |
| 1982 | 8.19704 |
| 1981 | 7.91813 |
| 1980 | 7.58577 |
| 1979 | 7.36754 |
| 1978 | 7.16124 |
| 1977 | 6.94542 |
| 1976 | 6.7658 |
| 1975 | 6.56903 |
| 1974 | 6.38576 |
| 1973 | 6.26677 |
| 1972 | 6.22111 |
| 1971 | 6.22692 |
| 1970 | 6.22256 |
| 1969 | 6.2221 |
| 1968 | 6.28617 |
| 1967 | 6.40534 |
| 1966 | 6.56908 |
| 1965 | 6.77703 |
| 1964 | 6.89412 |
| 1963 | 6.89881 |
| 1962 | 6.92994 |
| 1961 | 6.97837 |
| 1960 | 6.42362 |