| 年份 | 海峡群岛 |
|---|---|
| 2023 | - |
| 2022 | 1.01626 |
| 2021 | 1.07009 |
| 2020 | 1.10456 |
| 2019 | 1.33328 |
| 2018 | 1.22787 |
| 2017 | 0.857311 |
| 2016 | 0.836842 |
| 2015 | 0.683374 |
| 2014 | 0.595252 |
| 2013 | 0.633317 |
| 2012 | 0.40271 |
| 2011 | 0.683015 |
| 2010 | 0.975316 |
| 2009 | 1.00585 |
| 2008 | 1.01396 |
| 2007 | 1.01366 |
| 2006 | 1.00894 |
| 2005 | 1.01704 |
| 2004 | 1.00547 |
| 2003 | 0.997895 |
| 2002 | 0.969775 |
| 2001 | 0.605837 |
| 2000 | 0.391576 |
| 1999 | 0.472836 |
| 1998 | 0.51172 |
| 1997 | 0.507446 |
| 1996 | -0.163307 |
| 1995 | -0.536342 |
| 1994 | -0.47662 |
| 1993 | -0.39961 |
| 1992 | -0.278328 |
| 1991 | 0.264733 |
| 1990 | 0.64553 |
| 1989 | 0.725495 |
| 1988 | 0.763195 |
| 1987 | 0.74108 |
| 1986 | 0.951206 |
| 1985 | 0.917568 |
| 1984 | 0.904487 |
| 1983 | 0.912742 |
| 1982 | 0.796701 |
| 1981 | -0.52537 |
| 1980 | -1.10013 |
| 1979 | -1.05493 |
| 1978 | -0.999264 |
| 1977 | -0.886919 |
| 1976 | -0.657171 |
| 1975 | -0.448017 |
| 1974 | -0.345034 |
| 1973 | -0.24998 |
| 1972 | -0.183075 |
| 1971 | 0.160172 |
| 1970 | 0.217788 |
| 1969 | 0.278081 |
| 1968 | 0.375832 |
| 1967 | 0.421316 |
| 1966 | 0.411451 |
| 1965 | 0.387426 |
| 1964 | 0.351379 |
| 1963 | 0.319654 |
| 1962 | 0.264014 |
| 1961 | 0.262346 |
| 1960 | - |