| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 0.833082 |
| 2021 | 1.2182 |
| 2020 | 1.76407 |
| 2019 | 1.90819 |
| 2018 | 2.02864 |
| 2017 | 2.10758 |
| 2016 | 2.18251 |
| 2015 | 2.24464 |
| 2014 | 2.28759 |
| 2013 | 2.34994 |
| 2012 | 2.43532 |
| 2011 | 2.58854 |
| 2010 | 2.75993 |
| 2009 | 2.85196 |
| 2008 | 2.92965 |
| 2007 | 3.00562 |
| 2006 | 3.05596 |
| 2005 | 3.13242 |
| 2004 | 3.19496 |
| 2003 | 3.25801 |
| 2002 | 3.358 |
| 2001 | 3.45956 |
| 2000 | 3.49734 |
| 1999 | 3.58349 |
| 1998 | 3.77289 |
| 1997 | 3.97054 |
| 1996 | 4.15607 |
| 1995 | 4.31085 |
| 1994 | 4.49177 |
| 1993 | 4.63678 |
| 1992 | 4.77446 |
| 1991 | 4.92164 |
| 1990 | 4.47487 |
| 1989 | 3.81669 |
| 1988 | 3.7469 |
| 1987 | 3.88827 |
| 1986 | 4.05498 |
| 1985 | 4.2166 |
| 1984 | 4.30513 |
| 1983 | 4.40268 |
| 1982 | 4.5049 |
| 1981 | 4.59457 |
| 1980 | 4.31395 |
| 1979 | 3.93526 |
| 1978 | 4.08326 |
| 1977 | 4.46442 |
| 1976 | 4.70933 |
| 1975 | 5.00309 |
| 1974 | 5.28271 |
| 1973 | 5.49248 |
| 1972 | 5.77579 |
| 1971 | 5.39623 |
| 1970 | 3.39899 |
| 1969 | 1.984 |
| 1968 | 2.12645 |
| 1967 | 2.12037 |
| 1966 | 2.1129 |
| 1965 | 2.09307 |
| 1964 | 2.05988 |
| 1963 | 2.09184 |
| 1962 | 1.98572 |
| 1961 | 1.78963 |
| 1960 | - |