| 年份 | 海峡群岛 |
|---|---|
| 2023 | - |
| 2022 | 7.18393 |
| 2021 | 7.10933 |
| 2020 | 7.00458 |
| 2019 | 6.93512 |
| 2018 | 6.94328 |
| 2017 | 6.94355 |
| 2016 | 6.8545 |
| 2015 | 6.75008 |
| 2014 | 6.65205 |
| 2013 | 6.53468 |
| 2012 | 6.40097 |
| 2011 | 6.27872 |
| 2010 | 6.23364 |
| 2009 | 6.24795 |
| 2008 | 6.31052 |
| 2007 | 6.48865 |
| 2006 | 6.70029 |
| 2005 | 6.75516 |
| 2004 | 6.65371 |
| 2003 | 6.45345 |
| 2002 | 6.10868 |
| 2001 | 5.69243 |
| 2000 | 5.41955 |
| 1999 | 5.35098 |
| 1998 | 5.38452 |
| 1997 | 5.46857 |
| 1996 | 5.59245 |
| 1995 | 5.66886 |
| 1994 | 5.6378 |
| 1993 | 5.55216 |
| 1992 | 5.44966 |
| 1991 | 5.33529 |
| 1990 | 5.24745 |
| 1989 | 5.20374 |
| 1988 | 5.16629 |
| 1987 | 5.14321 |
| 1986 | 5.18553 |
| 1985 | 5.24673 |
| 1984 | 5.30277 |
| 1983 | 5.38232 |
| 1982 | 5.46043 |
| 1981 | 5.4961 |
| 1980 | 5.48064 |
| 1979 | 5.36849 |
| 1978 | 5.12435 |
| 1977 | 4.84706 |
| 1976 | 4.68479 |
| 1975 | 4.75735 |
| 1974 | 5.01116 |
| 1973 | 5.33008 |
| 1972 | 5.67041 |
| 1971 | 5.97937 |
| 1970 | 6.21016 |
| 1969 | 6.35662 |
| 1968 | 6.45444 |
| 1967 | 6.50932 |
| 1966 | 6.51938 |
| 1965 | 6.50603 |
| 1964 | 6.47222 |
| 1963 | 6.42636 |
| 1962 | 6.36652 |
| 1961 | 6.28807 |
| 1960 | 6.22051 |