| 年份 | 英屬維爾京群島 |
|---|---|
| 2023 | - |
| 2022 | 1.4217 |
| 2021 | 1.51553 |
| 2020 | 1.80331 |
| 2019 | 1.71893 |
| 2018 | 1.72088 |
| 2017 | 1.87982 |
| 2016 | 2.06193 |
| 2015 | 2.15014 |
| 2014 | 1.86964 |
| 2013 | 1.60323 |
| 2012 | 2.39467 |
| 2011 | 2.21831 |
| 2010 | 2.62547 |
| 2009 | 4.23681 |
| 2008 | 4.33367 |
| 2007 | 4.21777 |
| 2006 | 4.16687 |
| 2005 | 4.08097 |
| 2004 | 3.96599 |
| 2003 | 3.88536 |
| 2002 | 3.67335 |
| 2001 | 3.3719 |
| 2000 | 3.26787 |
| 1999 | 3.27652 |
| 1998 | 3.2561 |
| 1997 | 3.22996 |
| 1996 | 3.15562 |
| 1995 | 3.0706 |
| 1994 | 3.03387 |
| 1993 | 2.94472 |
| 1992 | 3.04987 |
| 1991 | 6.93428 |
| 1990 | 8.00004 |
| 1989 | 8.03791 |
| 1988 | 8.13524 |
| 1987 | 8.24538 |
| 1986 | 8.42475 |
| 1985 | 8.61548 |
| 1984 | 8.75922 |
| 1983 | 8.9025 |
| 1982 | 9.00886 |
| 1981 | 8.78688 |
| 1980 | 5.45072 |
| 1979 | 4.40148 |
| 1978 | 4.42135 |
| 1977 | 4.48254 |
| 1976 | 4.49294 |
| 1975 | 4.44291 |
| 1974 | 4.37637 |
| 1973 | 4.29155 |
| 1972 | 4.12729 |
| 1971 | 5.5519 |
| 1970 | 8.03041 |
| 1969 | 8.28793 |
| 1968 | 6.72009 |
| 1967 | 5.43744 |
| 1966 | 4.52103 |
| 1965 | 4.00588 |
| 1964 | 3.41835 |
| 1963 | 3.34479 |
| 1962 | 3.36 |
| 1961 | 3.58095 |
| 1960 | - |