| 年份 | 海峡群岛 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 1.457 |
| 2020 | 1.447 |
| 2019 | 1.441 |
| 2018 | 1.435 |
| 2017 | 1.466 |
| 2016 | 1.507 |
| 2015 | 1.521 |
| 2014 | 1.556 |
| 2013 | 1.572 |
| 2012 | 1.604 |
| 2011 | 1.626 |
| 2010 | 1.633 |
| 2009 | 1.651 |
| 2008 | 1.648 |
| 2007 | 1.616 |
| 2006 | 1.579 |
| 2005 | 1.542 |
| 2004 | 1.519 |
| 2003 | 1.497 |
| 2002 | 1.469 |
| 2001 | 1.475 |
| 2000 | 1.487 |
| 1999 | 1.51 |
| 1998 | 1.528 |
| 1997 | 1.535 |
| 1996 | 1.538 |
| 1995 | 1.54 |
| 1994 | 1.545 |
| 1993 | 1.548 |
| 1992 | 1.541 |
| 1991 | 1.522 |
| 1990 | 1.509 |
| 1989 | 1.506 |
| 1988 | 1.489 |
| 1987 | 1.472 |
| 1986 | 1.457 |
| 1985 | 1.449 |
| 1984 | 1.451 |
| 1983 | 1.451 |
| 1982 | 1.45 |
| 1981 | 1.453 |
| 1980 | 1.487 |
| 1979 | 1.504 |
| 1978 | 1.514 |
| 1977 | 1.523 |
| 1976 | 1.535 |
| 1975 | 1.562 |
| 1974 | 1.631 |
| 1973 | 1.71 |
| 1972 | 1.811 |
| 1971 | 1.933 |
| 1970 | 2.022 |
| 1969 | 2.108 |
| 1968 | 2.176 |
| 1967 | 2.256 |
| 1966 | 2.34 |
| 1965 | 2.428 |
| 1964 | 2.498 |
| 1963 | 2.515 |
| 1962 | 2.459 |
| 1961 | 2.377 |
| 1960 | 2.27 |