| 年份 | 英屬維爾京群島 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 11.4 |
| 2020 | 11.7 |
| 2019 | 12.2 |
| 2018 | 12.5 |
| 2017 | 12.9 |
| 2016 | 13.4 |
| 2015 | 13.8 |
| 2014 | 14.2 |
| 2013 | 14.6 |
| 2012 | 15 |
| 2011 | 15.4 |
| 2010 | 15.7 |
| 2009 | 16 |
| 2008 | 16.3 |
| 2007 | 16.5 |
| 2006 | 16.6 |
| 2005 | 16.8 |
| 2004 | 16.9 |
| 2003 | 17 |
| 2002 | 17.2 |
| 2001 | 17.3 |
| 2000 | 17.5 |
| 1999 | 17.7 |
| 1998 | 17.9 |
| 1997 | 18.1 |
| 1996 | 18.4 |
| 1995 | 18.7 |
| 1994 | 19.1 |
| 1993 | 19.5 |
| 1992 | 19.9 |
| 1991 | 20.5 |
| 1990 | 21.2 |
| 1989 | 22 |
| 1988 | 22.9 |
| 1987 | 24.1 |
| 1986 | 25.4 |
| 1985 | 26.9 |
| 1984 | 28.6 |
| 1983 | 30.3 |
| 1982 | 32.1 |
| 1981 | 34 |
| 1980 | 35.9 |
| 1979 | 37.7 |
| 1978 | 39.4 |
| 1977 | 41.1 |
| 1976 | 42.7 |
| 1975 | 44.3 |
| 1974 | 45.9 |
| 1973 | 47.5 |
| 1972 | 49.3 |
| 1971 | 51.3 |
| 1970 | 53.7 |
| 1969 | 56.4 |
| 1968 | 59.5 |
| 1967 | 63.2 |
| 1966 | 67.2 |
| 1965 | 71.6 |
| 1964 | 76.5 |
| 1963 | 81.7 |
| 1962 | 87 |
| 1961 | 92 |
| 1960 | 97.1 |