| 年份 | 英屬維爾京群島 |
|---|---|
| 2023 | - |
| 2022 | 7.31311 |
| 2021 | 7.02815 |
| 2020 | 6.85235 |
| 2019 | 6.75324 |
| 2018 | 6.77383 |
| 2017 | 6.93168 |
| 2016 | 7.0576 |
| 2015 | 7.01252 |
| 2014 | 6.90374 |
| 2013 | 6.78534 |
| 2012 | 6.60079 |
| 2011 | 6.46313 |
| 2010 | 6.3738 |
| 2009 | 6.35457 |
| 2008 | 6.46772 |
| 2007 | 6.62164 |
| 2006 | 6.8164 |
| 2005 | 7.04973 |
| 2004 | 7.2821 |
| 2003 | 7.43319 |
| 2002 | 7.47431 |
| 2001 | 7.46128 |
| 2000 | 7.49976 |
| 1999 | 7.62809 |
| 1998 | 7.72213 |
| 1997 | 7.75271 |
| 1996 | 7.74065 |
| 1995 | 7.66858 |
| 1994 | 7.56549 |
| 1993 | 7.48988 |
| 1992 | 7.49882 |
| 1991 | 7.65921 |
| 1990 | 8.07035 |
| 1989 | 8.57456 |
| 1988 | 8.99453 |
| 1987 | 9.37047 |
| 1986 | 9.67995 |
| 1985 | 9.85396 |
| 1984 | 9.864 |
| 1983 | 9.79663 |
| 1982 | 9.65918 |
| 1981 | 9.38561 |
| 1980 | 9.13546 |
| 1979 | 9.10711 |
| 1978 | 9.17365 |
| 1977 | 9.24423 |
| 1976 | 9.37759 |
| 1975 | 9.62327 |
| 1974 | 10.1687 |
| 1973 | 10.8965 |
| 1972 | 11.6141 |
| 1971 | 12.2841 |
| 1970 | 12.846 |
| 1969 | 13.1527 |
| 1968 | 13.081 |
| 1967 | 12.6569 |
| 1966 | 12.0452 |
| 1965 | 11.6001 |
| 1964 | 11.4082 |
| 1963 | 11.3484 |
| 1962 | 11.1697 |
| 1961 | 10.7234 |
| 1960 | 10.2143 |