| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 8.38952 |
| 2021 | 8.27998 |
| 2020 | 8.13305 |
| 2019 | 7.9835 |
| 2018 | 7.86639 |
| 2017 | 7.76235 |
| 2016 | 7.68461 |
| 2015 | 7.67 |
| 2014 | 7.63974 |
| 2013 | 7.50687 |
| 2012 | 7.31622 |
| 2011 | 7.11408 |
| 2010 | 6.85926 |
| 2009 | 6.60368 |
| 2008 | 6.42965 |
| 2007 | 6.29888 |
| 2006 | 6.17213 |
| 2005 | 6.06816 |
| 2004 | 5.96368 |
| 2003 | 5.79118 |
| 2002 | 5.6036 |
| 2001 | 5.43621 |
| 2000 | 5.23996 |
| 1999 | 4.95681 |
| 1998 | 4.63349 |
| 1997 | 4.35958 |
| 1996 | 4.13173 |
| 1995 | 3.96958 |
| 1994 | 3.88547 |
| 1993 | 3.90048 |
| 1992 | 3.96891 |
| 1991 | 4.07716 |
| 1990 | 4.17846 |
| 1989 | 4.14248 |
| 1988 | 4.04219 |
| 1987 | 4.02504 |
| 1986 | 4.05914 |
| 1985 | 4.09028 |
| 1984 | 4.16667 |
| 1983 | 4.25724 |
| 1982 | 4.3062 |
| 1981 | 4.3395 |
| 1980 | 4.37944 |
| 1979 | 4.3211 |
| 1978 | 4.14886 |
| 1977 | 4.0551 |
| 1976 | 4.01828 |
| 1975 | 3.96005 |
| 1974 | 3.92736 |
| 1973 | 3.91426 |
| 1972 | 3.93056 |
| 1971 | 4.0045 |
| 1970 | 4.08442 |
| 1969 | 4.14868 |
| 1968 | 4.23356 |
| 1967 | 4.32791 |
| 1966 | 4.4429 |
| 1965 | 4.58418 |
| 1964 | 4.71708 |
| 1963 | 4.79604 |
| 1962 | 4.80439 |
| 1961 | 4.72906 |
| 1960 | 4.59553 |