| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 4.81554 |
| 2021 | 4.46974 |
| 2020 | 4.22209 |
| 2019 | 4.0664 |
| 2018 | 3.92779 |
| 2017 | 3.81955 |
| 2016 | 3.73515 |
| 2015 | 3.65858 |
| 2014 | 3.57753 |
| 2013 | 3.48825 |
| 2012 | 3.40588 |
| 2011 | 3.30631 |
| 2010 | 3.20751 |
| 2009 | 3.14985 |
| 2008 | 3.09409 |
| 2007 | 2.99101 |
| 2006 | 2.88094 |
| 2005 | 2.78579 |
| 2004 | 2.69235 |
| 2003 | 2.64528 |
| 2002 | 2.66874 |
| 2001 | 2.71858 |
| 2000 | 2.74817 |
| 1999 | 2.74399 |
| 1998 | 2.73073 |
| 1997 | 2.70363 |
| 1996 | 2.63715 |
| 1995 | 2.55901 |
| 1994 | 2.4705 |
| 1993 | 2.37361 |
| 1992 | 2.33029 |
| 1991 | 2.38796 |
| 1990 | 2.53501 |
| 1989 | 2.6827 |
| 1988 | 2.73117 |
| 1987 | 2.748 |
| 1986 | 2.75688 |
| 1985 | 2.71097 |
| 1984 | 2.70027 |
| 1983 | 2.75851 |
| 1982 | 2.8073 |
| 1981 | 2.8459 |
| 1980 | 2.89266 |
| 1979 | 2.89375 |
| 1978 | 2.8415 |
| 1977 | 2.79006 |
| 1976 | 2.7158 |
| 1975 | 2.60382 |
| 1974 | 2.50591 |
| 1973 | 2.46461 |
| 1972 | 2.433 |
| 1971 | 2.42691 |
| 1970 | 2.52184 |
| 1969 | 2.6061 |
| 1968 | 2.66372 |
| 1967 | 2.69339 |
| 1966 | 2.61243 |
| 1965 | 2.47999 |
| 1964 | 2.37437 |
| 1963 | 2.35793 |
| 1962 | 2.38727 |
| 1961 | 2.43963 |
| 1960 | 2.52544 |