| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | 7.27771 |
| 2021 | 7.25546 |
| 2020 | 7.22143 |
| 2019 | 7.15711 |
| 2018 | 7.06547 |
| 2017 | 6.97521 |
| 2016 | 6.89989 |
| 2015 | 6.85895 |
| 2014 | 6.86528 |
| 2013 | 6.90894 |
| 2012 | 6.9595 |
| 2011 | 6.98238 |
| 2010 | 6.94709 |
| 2009 | 6.83844 |
| 2008 | 6.65478 |
| 2007 | 6.41111 |
| 2006 | 6.12697 |
| 2005 | 5.81879 |
| 2004 | 5.49346 |
| 2003 | 5.15741 |
| 2002 | 4.83458 |
| 2001 | 4.54304 |
| 2000 | 4.30059 |
| 1999 | 4.11913 |
| 1998 | 3.98145 |
| 1997 | 3.84979 |
| 1996 | 3.692 |
| 1995 | 3.55042 |
| 1994 | 3.42347 |
| 1993 | 3.3086 |
| 1992 | 3.23682 |
| 1991 | 3.18443 |
| 1990 | 3.10336 |
| 1989 | 3.00621 |
| 1988 | 2.94786 |
| 1987 | 2.90308 |
| 1986 | 2.86478 |
| 1985 | 2.84922 |
| 1984 | 2.82283 |
| 1983 | 2.76005 |
| 1982 | 2.66658 |
| 1981 | 2.57444 |
| 1980 | 2.47891 |
| 1979 | 2.40993 |
| 1978 | 2.3719 |
| 1977 | 2.32579 |
| 1976 | 2.29546 |
| 1975 | 2.26771 |
| 1974 | 2.23634 |
| 1973 | 2.20348 |
| 1972 | 2.17145 |
| 1971 | 2.13893 |
| 1970 | 2.12297 |
| 1969 | 2.10845 |
| 1968 | 2.07061 |
| 1967 | 2.01478 |
| 1966 | 1.9687 |
| 1965 | 1.96562 |
| 1964 | 2.03391 |
| 1963 | 2.18774 |
| 1962 | 2.40582 |
| 1961 | 2.66468 |
| 1960 | 2.88526 |