| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 1.44404 |
| 2021 | 1.39605 |
| 2020 | 1.35301 |
| 2019 | 1.31663 |
| 2018 | 1.28652 |
| 2017 | 1.27107 |
| 2016 | 1.26678 |
| 2015 | 1.26405 |
| 2014 | 1.28591 |
| 2013 | 1.32474 |
| 2012 | 1.35908 |
| 2011 | 1.38772 |
| 2010 | 1.38762 |
| 2009 | 1.34558 |
| 2008 | 1.30373 |
| 2007 | 1.27769 |
| 2006 | 1.25615 |
| 2005 | 1.24995 |
| 2004 | 1.24325 |
| 2003 | 1.22428 |
| 2002 | 1.23108 |
| 2001 | 1.25727 |
| 2000 | 1.27037 |
| 1999 | 1.30712 |
| 1998 | 1.37358 |
| 1997 | 1.42928 |
| 1996 | 1.47008 |
| 1995 | 1.50581 |
| 1994 | 1.53481 |
| 1993 | 1.54973 |
| 1992 | 1.57523 |
| 1991 | 1.62009 |
| 1990 | 1.70611 |
| 1989 | 1.72965 |
| 1988 | 1.65381 |
| 1987 | 1.56317 |
| 1986 | 1.47404 |
| 1985 | 1.46016 |
| 1984 | 1.46889 |
| 1983 | 1.46249 |
| 1982 | 1.45982 |
| 1981 | 1.45562 |
| 1980 | 1.44836 |
| 1979 | 1.42047 |
| 1978 | 1.43662 |
| 1977 | 1.48687 |
| 1976 | 1.53205 |
| 1975 | 1.56854 |
| 1974 | 1.59457 |
| 1973 | 1.64647 |
| 1972 | 1.74419 |
| 1971 | 1.89414 |
| 1970 | 2.09224 |
| 1969 | 2.15881 |
| 1968 | 2.05466 |
| 1967 | 1.969 |
| 1966 | 1.87854 |
| 1965 | 1.75456 |
| 1964 | 1.65512 |
| 1963 | 1.59165 |
| 1962 | 1.61221 |
| 1961 | 1.74056 |
| 1960 | 1.86937 |