| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 5.25612 |
| 2021 | 5.75167 |
| 2020 | 6.37549 |
| 2019 | 6.94237 |
| 2018 | 7.24173 |
| 2017 | 7.32128 |
| 2016 | 7.23761 |
| 2015 | 7.06352 |
| 2014 | 6.84867 |
| 2013 | 6.65808 |
| 2012 | 6.57092 |
| 2011 | 6.57332 |
| 2010 | 6.61546 |
| 2009 | 6.71095 |
| 2008 | 6.81264 |
| 2007 | 6.85613 |
| 2006 | 6.90984 |
| 2005 | 6.97606 |
| 2004 | 6.95654 |
| 2003 | 6.88067 |
| 2002 | 6.82772 |
| 2001 | 6.80365 |
| 2000 | 6.82978 |
| 1999 | 7.02002 |
| 1998 | 7.34079 |
| 1997 | 7.61547 |
| 1996 | 7.80694 |
| 1995 | 7.9242 |
| 1994 | 7.96161 |
| 1993 | 7.92846 |
| 1992 | 7.87275 |
| 1991 | 7.83461 |
| 1990 | 7.82848 |
| 1989 | 7.89006 |
| 1988 | 8.01871 |
| 1987 | 8.18639 |
| 1986 | 8.36616 |
| 1985 | 8.5076 |
| 1984 | 8.51094 |
| 1983 | 8.33918 |
| 1982 | 8.13102 |
| 1981 | 8.03327 |
| 1980 | 8.12915 |
| 1979 | 8.71978 |
| 1978 | 9.70958 |
| 1977 | 10.6076 |
| 1976 | 11.3224 |
| 1975 | 11.845 |
| 1974 | 12.1069 |
| 1973 | 12.2398 |
| 1972 | 12.3731 |
| 1971 | 12.4632 |
| 1970 | 12.5716 |
| 1969 | 12.7933 |
| 1968 | 13.0734 |
| 1967 | 13.3346 |
| 1966 | 13.6269 |
| 1965 | 13.9148 |
| 1964 | 14.1099 |
| 1963 | 14.0403 |
| 1962 | 13.7575 |
| 1961 | 13.4866 |
| 1960 | 13.2636 |