| 年份 | 英屬維爾京群島 |
|---|---|
| 2023 | - |
| 2022 | 0.586286 |
| 2021 | 0.683521 |
| 2020 | 0.9753 |
| 2019 | 0.902459 |
| 2018 | 0.910678 |
| 2017 | 1.07361 |
| 2016 | 1.26218 |
| 2015 | 1.35422 |
| 2014 | 1.08976 |
| 2013 | 0.826943 |
| 2012 | 1.62819 |
| 2011 | 1.46261 |
| 2010 | 1.87551 |
| 2009 | 3.49553 |
| 2008 | 3.60231 |
| 2007 | 3.50644 |
| 2006 | 3.45497 |
| 2005 | 3.38473 |
| 2004 | 3.28016 |
| 2003 | 3.20804 |
| 2002 | 3.00893 |
| 2001 | 2.71354 |
| 2000 | 2.61038 |
| 1999 | 2.62268 |
| 1998 | 2.59107 |
| 1997 | 2.56613 |
| 1996 | 2.49217 |
| 1995 | 2.39927 |
| 1994 | 2.34546 |
| 1993 | 2.27426 |
| 1992 | 2.37068 |
| 1991 | 2.98379 |
| 1990 | 3.42615 |
| 1989 | 3.35566 |
| 1988 | 3.31622 |
| 1987 | 3.32008 |
| 1986 | 3.38107 |
| 1985 | 3.46018 |
| 1984 | 3.49485 |
| 1983 | 3.52044 |
| 1982 | 3.57043 |
| 1981 | 3.21537 |
| 1980 | 2.11971 |
| 1979 | 1.37946 |
| 1978 | 1.39876 |
| 1977 | 1.42819 |
| 1976 | 1.40997 |
| 1975 | 1.33153 |
| 1974 | 1.26961 |
| 1973 | 1.11419 |
| 1972 | 0.953354 |
| 1971 | 2.39261 |
| 1970 | 4.96412 |
| 1969 | 5.26971 |
| 1968 | 3.67403 |
| 1967 | 2.40361 |
| 1966 | 1.49783 |
| 1965 | 0.864288 |
| 1964 | 0.37812 |
| 1963 | 0.214904 |
| 1962 | 0.215367 |
| 1961 | 0.444869 |
| 1960 | - |