| 年份 | 英屬維爾京群島 |
|---|---|
| 2023 | - |
| 2022 | 6.71387 |
| 2021 | 6.76927 |
| 2020 | 6.7614 |
| 2019 | 6.69847 |
| 2018 | 6.65666 |
| 2017 | 6.59153 |
| 2016 | 6.51555 |
| 2015 | 6.43651 |
| 2014 | 6.38384 |
| 2013 | 6.38959 |
| 2012 | 6.45595 |
| 2011 | 6.53182 |
| 2010 | 6.74262 |
| 2009 | 7.10562 |
| 2008 | 7.47897 |
| 2007 | 7.83579 |
| 2006 | 8.05578 |
| 2005 | 8.1073 |
| 2004 | 8.08762 |
| 2003 | 7.98691 |
| 2002 | 7.70815 |
| 2001 | 7.41918 |
| 2000 | 7.33391 |
| 1999 | 7.34422 |
| 1998 | 7.36808 |
| 1997 | 7.43916 |
| 1996 | 7.63121 |
| 1995 | 8.01884 |
| 1994 | 8.5665 |
| 1993 | 9.06212 |
| 1992 | 9.48555 |
| 1991 | 9.88773 |
| 1990 | 10.277 |
| 1989 | 10.668 |
| 1988 | 11.0234 |
| 1987 | 11.2292 |
| 1986 | 11.2173 |
| 1985 | 11.0618 |
| 1984 | 10.823 |
| 1983 | 10.5153 |
| 1982 | 10.3016 |
| 1981 | 10.233 |
| 1980 | 10.1483 |
| 1979 | 10.133 |
| 1978 | 10.1574 |
| 1977 | 9.9735 |
| 1976 | 9.61039 |
| 1975 | 9.33943 |
| 1974 | 9.08058 |
| 1973 | 8.78463 |
| 1972 | 8.55438 |
| 1971 | 8.30185 |
| 1970 | 8.202 |
| 1969 | 8.51437 |
| 1968 | 8.8412 |
| 1967 | 8.88524 |
| 1966 | 8.65656 |
| 1965 | 8.2666 |
| 1964 | 7.93856 |
| 1963 | 7.73381 |
| 1962 | 7.55487 |
| 1961 | 7.39004 |
| 1960 | 7.34792 |