| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | 7.4928 |
| 2021 | 7.51811 |
| 2020 | 7.56016 |
| 2019 | 7.61286 |
| 2018 | 7.65009 |
| 2017 | 7.66453 |
| 2016 | 7.64341 |
| 2015 | 7.56026 |
| 2014 | 7.39424 |
| 2013 | 7.1743 |
| 2012 | 6.94615 |
| 2011 | 6.75324 |
| 2010 | 6.62922 |
| 2009 | 6.64271 |
| 2008 | 6.79968 |
| 2007 | 7.01168 |
| 2006 | 7.22011 |
| 2005 | 7.36841 |
| 2004 | 7.38303 |
| 2003 | 7.2711 |
| 2002 | 7.08156 |
| 2001 | 6.82303 |
| 2000 | 6.50771 |
| 1999 | 6.21203 |
| 1998 | 5.93877 |
| 1997 | 5.67435 |
| 1996 | 5.47456 |
| 1995 | 5.29648 |
| 1994 | 5.04233 |
| 1993 | 4.7828 |
| 1992 | 4.5612 |
| 1991 | 4.3207 |
| 1990 | 4.11807 |
| 1989 | 3.96468 |
| 1988 | 3.79014 |
| 1987 | 3.58241 |
| 1986 | 3.41779 |
| 1985 | 3.27366 |
| 1984 | 3.14444 |
| 1983 | 3.09226 |
| 1982 | 3.07004 |
| 1981 | 3.05171 |
| 1980 | 3.07133 |
| 1979 | 3.07975 |
| 1978 | 3.06304 |
| 1977 | 3.08933 |
| 1976 | 3.09817 |
| 1975 | 3.05777 |
| 1974 | 3.02063 |
| 1973 | 2.99134 |
| 1972 | 2.95392 |
| 1971 | 2.9023 |
| 1970 | 2.87302 |
| 1969 | 2.90102 |
| 1968 | 2.94252 |
| 1967 | 2.95103 |
| 1966 | 2.93941 |
| 1965 | 2.92653 |
| 1964 | 2.90698 |
| 1963 | 2.90032 |
| 1962 | 2.95287 |
| 1961 | 3.0616 |
| 1960 | 3.13208 |