| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 6.8691 |
| 2021 | 6.60828 |
| 2020 | 6.43093 |
| 2019 | 6.30613 |
| 2018 | 6.15516 |
| 2017 | 6.0012 |
| 2016 | 5.84979 |
| 2015 | 5.67257 |
| 2014 | 5.50048 |
| 2013 | 5.36426 |
| 2012 | 5.23464 |
| 2011 | 5.07458 |
| 2010 | 4.91073 |
| 2009 | 4.73681 |
| 2008 | 4.50308 |
| 2007 | 4.27886 |
| 2006 | 4.10451 |
| 2005 | 3.93776 |
| 2004 | 3.76894 |
| 2003 | 3.62566 |
| 2002 | 3.49153 |
| 2001 | 3.35992 |
| 2000 | 3.2564 |
| 1999 | 3.15504 |
| 1998 | 3.11113 |
| 1997 | 3.11241 |
| 1996 | 3.14689 |
| 1995 | 3.21818 |
| 1994 | 3.24779 |
| 1993 | 3.24004 |
| 1992 | 3.2669 |
| 1991 | 3.32639 |
| 1990 | 3.35938 |
| 1989 | 3.40402 |
| 1988 | 3.43073 |
| 1987 | 3.40745 |
| 1986 | 3.37745 |
| 1985 | 3.36251 |
| 1984 | 3.35541 |
| 1983 | 3.37574 |
| 1982 | 3.45856 |
| 1981 | 3.51319 |
| 1980 | 3.52072 |
| 1979 | 3.47359 |
| 1978 | 3.37482 |
| 1977 | 3.30201 |
| 1976 | 3.29257 |
| 1975 | 3.35514 |
| 1974 | 3.44751 |
| 1973 | 3.5803 |
| 1972 | 3.70947 |
| 1971 | 3.81422 |
| 1970 | 3.93887 |
| 1969 | 4.05482 |
| 1968 | 4.10933 |
| 1967 | 4.1427 |
| 1966 | 4.17454 |
| 1965 | 4.09736 |
| 1964 | 3.94124 |
| 1963 | 3.83683 |
| 1962 | 3.81556 |
| 1961 | 3.8971 |
| 1960 | 4.08368 |