| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | 5.13432 |
| 2021 | 5.25028 |
| 2020 | 5.36055 |
| 2019 | 5.41036 |
| 2018 | 5.3743 |
| 2017 | 5.27812 |
| 2016 | 5.12961 |
| 2015 | 4.92491 |
| 2014 | 4.66989 |
| 2013 | 4.38357 |
| 2012 | 4.08133 |
| 2011 | 3.7809 |
| 2010 | 3.50037 |
| 2009 | 3.28307 |
| 2008 | 3.12028 |
| 2007 | 2.97293 |
| 2006 | 2.83588 |
| 2005 | 2.70931 |
| 2004 | 2.57691 |
| 2003 | 2.44385 |
| 2002 | 2.3278 |
| 2001 | 2.22423 |
| 2000 | 2.14053 |
| 1999 | 2.07165 |
| 1998 | 2.01471 |
| 1997 | 1.96227 |
| 1996 | 1.90954 |
| 1995 | 1.86634 |
| 1994 | 1.81012 |
| 1993 | 1.74931 |
| 1992 | 1.74079 |
| 1991 | 1.73113 |
| 1990 | 1.67421 |
| 1989 | 1.6268 |
| 1988 | 1.57999 |
| 1987 | 1.51364 |
| 1986 | 1.46273 |
| 1985 | 1.43255 |
| 1984 | 1.38569 |
| 1983 | 1.322 |
| 1982 | 1.2494 |
| 1981 | 1.19073 |
| 1980 | 1.15188 |
| 1979 | 1.09107 |
| 1978 | 1.03353 |
| 1977 | 1.00395 |
| 1976 | 0.984952 |
| 1975 | 0.961768 |
| 1974 | 0.932343 |
| 1973 | 0.905846 |
| 1972 | 0.879193 |
| 1971 | 0.845694 |
| 1970 | 0.842963 |
| 1969 | 0.895313 |
| 1968 | 0.982017 |
| 1967 | 1.10289 |
| 1966 | 1.25005 |
| 1965 | 1.40661 |
| 1964 | 1.54505 |
| 1963 | 1.66047 |
| 1962 | 1.77852 |
| 1961 | 1.917 |
| 1960 | 1.86354 |