| 年份 | 英屬維爾京群島 |
|---|---|
| 2023 | - |
| 2022 | 13.151 |
| 2021 | 12.5672 |
| 2020 | 12.0921 |
| 2019 | 11.5679 |
| 2018 | 11.0374 |
| 2017 | 10.5881 |
| 2016 | 10.1873 |
| 2015 | 9.83031 |
| 2014 | 9.47898 |
| 2013 | 9.1448 |
| 2012 | 8.8231 |
| 2011 | 8.49537 |
| 2010 | 8.1859 |
| 2009 | 7.83024 |
| 2008 | 7.48422 |
| 2007 | 7.21378 |
| 2006 | 7.01944 |
| 2005 | 6.86847 |
| 2004 | 6.75833 |
| 2003 | 6.72898 |
| 2002 | 6.74608 |
| 2001 | 6.83975 |
| 2000 | 6.92413 |
| 1999 | 6.98706 |
| 1998 | 7.14177 |
| 1997 | 7.29403 |
| 1996 | 7.43536 |
| 1995 | 7.60843 |
| 1994 | 7.76881 |
| 1993 | 7.87519 |
| 1992 | 8.01366 |
| 1991 | 8.18703 |
| 1990 | 8.26415 |
| 1989 | 8.28631 |
| 1988 | 8.2956 |
| 1987 | 8.25472 |
| 1986 | 8.26428 |
| 1985 | 8.31964 |
| 1984 | 8.45661 |
| 1983 | 8.66917 |
| 1982 | 8.88919 |
| 1981 | 9.22483 |
| 1980 | 9.42549 |
| 1979 | 9.33085 |
| 1978 | 9.06756 |
| 1977 | 8.82988 |
| 1976 | 8.64558 |
| 1975 | 8.49813 |
| 1974 | 8.45799 |
| 1973 | 8.43558 |
| 1972 | 8.32338 |
| 1971 | 8.21236 |
| 1970 | 8.19003 |
| 1969 | 8.35722 |
| 1968 | 8.62807 |
| 1967 | 8.95282 |
| 1966 | 9.34777 |
| 1965 | 9.76374 |
| 1964 | 10.252 |
| 1963 | 10.8498 |
| 1962 | 11.3583 |
| 1961 | 11.7475 |
| 1960 | 12.2736 |