| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 5.15879 |
| 2021 | 5.42473 |
| 2020 | 5.75861 |
| 2019 | 6.11086 |
| 2018 | 6.42116 |
| 2017 | 6.64706 |
| 2016 | 6.74757 |
| 2015 | 6.73329 |
| 2014 | 6.59063 |
| 2013 | 6.28607 |
| 2012 | 5.87519 |
| 2011 | 5.51354 |
| 2010 | 5.53804 |
| 2009 | 5.99239 |
| 2008 | 6.58582 |
| 2007 | 7.12582 |
| 2006 | 7.45468 |
| 2005 | 7.53292 |
| 2004 | 7.41852 |
| 2003 | 7.13972 |
| 2002 | 6.77836 |
| 2001 | 6.47799 |
| 2000 | 6.30538 |
| 1999 | 6.60048 |
| 1998 | 7.41435 |
| 1997 | 8.32856 |
| 1996 | 9.11529 |
| 1995 | 9.6677 |
| 1994 | 9.94359 |
| 1993 | 9.97592 |
| 1992 | 9.8469 |
| 1991 | 9.63007 |
| 1990 | 9.47109 |
| 1989 | 9.60209 |
| 1988 | 9.97749 |
| 1987 | 10.326 |
| 1986 | 10.578 |
| 1985 | 10.7005 |
| 1984 | 10.7013 |
| 1983 | 10.5752 |
| 1982 | 10.2698 |
| 1981 | 9.88936 |
| 1980 | 9.52666 |
| 1979 | 9.31875 |
| 1978 | 9.22185 |
| 1977 | 9.13916 |
| 1976 | 9.07406 |
| 1975 | 8.97868 |
| 1974 | 8.84161 |
| 1973 | 8.55953 |
| 1972 | 8.12764 |
| 1971 | 7.63681 |
| 1970 | 7.12867 |
| 1969 | 6.83972 |
| 1968 | 6.88566 |
| 1967 | 7.0028 |
| 1966 | 7.08774 |
| 1965 | 7.23706 |
| 1964 | 7.46888 |
| 1963 | 7.72224 |
| 1962 | 8.01784 |
| 1961 | 8.39083 |
| 1960 | 8.76995 |