| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | 6.22687 |
| 2021 | 6.24484 |
| 2020 | 6.22275 |
| 2019 | 6.11085 |
| 2018 | 5.90361 |
| 2017 | 5.63812 |
| 2016 | 5.33528 |
| 2015 | 5.0121 |
| 2014 | 4.69506 |
| 2013 | 4.39468 |
| 2012 | 4.11031 |
| 2011 | 3.83976 |
| 2010 | 3.6035 |
| 2009 | 3.41652 |
| 2008 | 3.26434 |
| 2007 | 3.1344 |
| 2006 | 3.01846 |
| 2005 | 2.89859 |
| 2004 | 2.75885 |
| 2003 | 2.61619 |
| 2002 | 2.48214 |
| 2001 | 2.36273 |
| 2000 | 2.27194 |
| 1999 | 2.21697 |
| 1998 | 2.19074 |
| 1997 | 2.17375 |
| 1996 | 2.15474 |
| 1995 | 2.14127 |
| 1994 | 2.11857 |
| 1993 | 2.06752 |
| 1992 | 1.996 |
| 1991 | 1.93069 |
| 1990 | 1.84675 |
| 1989 | 1.76671 |
| 1988 | 1.71024 |
| 1987 | 1.65441 |
| 1986 | 1.61102 |
| 1985 | 1.57933 |
| 1984 | 1.53722 |
| 1983 | 1.47477 |
| 1982 | 1.42082 |
| 1981 | 1.37532 |
| 1980 | 1.33633 |
| 1979 | 1.28557 |
| 1978 | 1.24101 |
| 1977 | 1.21025 |
| 1976 | 1.15979 |
| 1975 | 1.10684 |
| 1974 | 1.06912 |
| 1973 | 1.04953 |
| 1972 | 1.04593 |
| 1971 | 1.05166 |
| 1970 | 1.08903 |
| 1969 | 1.16748 |
| 1968 | 1.25299 |
| 1967 | 1.33248 |
| 1966 | 1.40303 |
| 1965 | 1.45456 |
| 1964 | 1.4884 |
| 1963 | 1.51148 |
| 1962 | 1.54601 |
| 1961 | 1.59939 |
| 1960 | 1.87036 |