| 年份 | 海峡群岛 |
|---|---|
| 2023 | - |
| 2022 | 0.805168 |
| 2021 | 0.913339 |
| 2020 | 1.00023 |
| 2019 | 1.27783 |
| 2018 | 1.22959 |
| 2017 | 0.90839 |
| 2016 | 0.939527 |
| 2015 | 0.791086 |
| 2014 | 0.697215 |
| 2013 | 0.736778 |
| 2012 | 0.50689 |
| 2011 | 0.562984 |
| 2010 | 0.775302 |
| 2009 | 0.803367 |
| 2008 | 0.812484 |
| 2007 | 0.81256 |
| 2006 | 0.807276 |
| 2005 | 0.815853 |
| 2004 | 0.803686 |
| 2003 | 0.794568 |
| 2002 | 0.766005 |
| 2001 | 0.506608 |
| 2000 | 0.341242 |
| 1999 | 0.415194 |
| 1998 | 0.460106 |
| 1997 | 0.454535 |
| 1996 | 0.237514 |
| 1995 | 0.0652574 |
| 1994 | 0.122912 |
| 1993 | 0.196974 |
| 1992 | 0.320206 |
| 1991 | 0.677637 |
| 1990 | 0.981321 |
| 1989 | 1.05635 |
| 1988 | 1.09552 |
| 1987 | 1.07426 |
| 1986 | 1.01247 |
| 1985 | 0.975897 |
| 1984 | 0.96794 |
| 1983 | 0.972771 |
| 1982 | 0.855408 |
| 1981 | 0.410147 |
| 1980 | 0.104755 |
| 1979 | 0.143239 |
| 1978 | 0.189736 |
| 1977 | 0.29315 |
| 1976 | 0.520035 |
| 1975 | 0.72019 |
| 1974 | 0.816965 |
| 1973 | 0.901492 |
| 1972 | 0.96616 |
| 1971 | 0.953269 |
| 1970 | 0.929073 |
| 1969 | 0.986634 |
| 1968 | 1.08159 |
| 1967 | 1.12527 |
| 1966 | 1.11195 |
| 1965 | 1.08219 |
| 1964 | 1.04954 |
| 1963 | 1.00944 |
| 1962 | 0.95348 |
| 1961 | 0.947088 |
| 1960 | - |