| 年份 | 开曼群岛 |
|---|---|
| 2023 | - |
| 2022 | 9.4883 |
| 2021 | 9.45985 |
| 2020 | 9.443 |
| 2019 | 9.44419 |
| 2018 | 9.45397 |
| 2017 | 9.48864 |
| 2016 | 9.48977 |
| 2015 | 9.43674 |
| 2014 | 9.37427 |
| 2013 | 9.31231 |
| 2012 | 9.22816 |
| 2011 | 9.11366 |
| 2010 | 8.93587 |
| 2009 | 8.69858 |
| 2008 | 8.42763 |
| 2007 | 8.12894 |
| 2006 | 7.84792 |
| 2005 | 7.61971 |
| 2004 | 7.44988 |
| 2003 | 7.32023 |
| 2002 | 7.26424 |
| 2001 | 7.28093 |
| 2000 | 7.34558 |
| 1999 | 7.32707 |
| 1998 | 7.16059 |
| 1997 | 6.9567 |
| 1996 | 6.70461 |
| 1995 | 6.3913 |
| 1994 | 6.09195 |
| 1993 | 5.85263 |
| 1992 | 5.65877 |
| 1991 | 5.52844 |
| 1990 | 5.45341 |
| 1989 | 5.34495 |
| 1988 | 5.22873 |
| 1987 | 5.21371 |
| 1986 | 5.27982 |
| 1985 | 5.40282 |
| 1984 | 5.50037 |
| 1983 | 5.51703 |
| 1982 | 5.42382 |
| 1981 | 5.24695 |
| 1980 | 5.06813 |
| 1979 | 4.84375 |
| 1978 | 4.64025 |
| 1977 | 4.55257 |
| 1976 | 4.55485 |
| 1975 | 4.57912 |
| 1974 | 4.51537 |
| 1973 | 4.34638 |
| 1972 | 4.08145 |
| 1971 | 3.84183 |
| 1970 | 3.76291 |
| 1969 | 3.86279 |
| 1968 | 4.06401 |
| 1967 | 4.234 |
| 1966 | 4.33201 |
| 1965 | 4.3738 |
| 1964 | 4.41448 |
| 1963 | 4.40934 |
| 1962 | 4.449 |
| 1961 | 4.50961 |
| 1960 | 4.49805 |