| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 4.75372 |
| 2021 | 4.25929 |
| 2020 | 4.02457 |
| 2019 | 4.04579 |
| 2018 | 4.21297 |
| 2017 | 4.43608 |
| 2016 | 4.67983 |
| 2015 | 4.92765 |
| 2014 | 5.10999 |
| 2013 | 5.2457 |
| 2012 | 5.34863 |
| 2011 | 5.32526 |
| 2010 | 5.22418 |
| 2009 | 5.23552 |
| 2008 | 5.37158 |
| 2007 | 5.53267 |
| 2006 | 5.68852 |
| 2005 | 5.82957 |
| 2004 | 5.91796 |
| 2003 | 5.91023 |
| 2002 | 5.82617 |
| 2001 | 5.71162 |
| 2000 | 5.54207 |
| 1999 | 5.39508 |
| 1998 | 5.39069 |
| 1997 | 5.49914 |
| 1996 | 5.66498 |
| 1995 | 5.86457 |
| 1994 | 6.09859 |
| 1993 | 6.32969 |
| 1992 | 6.5064 |
| 1991 | 6.65996 |
| 1990 | 6.8169 |
| 1989 | 6.98969 |
| 1988 | 7.33339 |
| 1987 | 7.91379 |
| 1986 | 8.5388 |
| 1985 | 9.03731 |
| 1984 | 9.3702 |
| 1983 | 9.53621 |
| 1982 | 9.54897 |
| 1981 | 9.45606 |
| 1980 | 9.29128 |
| 1979 | 9.2271 |
| 1978 | 9.35662 |
| 1977 | 9.60994 |
| 1976 | 9.93818 |
| 1975 | 10.3397 |
| 1974 | 10.7338 |
| 1973 | 10.9739 |
| 1972 | 11.0465 |
| 1971 | 10.9929 |
| 1970 | 10.816 |
| 1969 | 10.5876 |
| 1968 | 10.5122 |
| 1967 | 10.6053 |
| 1966 | 10.5755 |
| 1965 | 10.4057 |
| 1964 | 10.1686 |
| 1963 | 9.78181 |
| 1962 | 9.32932 |
| 1961 | 8.89984 |
| 1960 | 8.52342 |