| 年份 | 海峡群岛 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.0210212 |
| 2020 | 0.0212141 |
| 2019 | 0.0214273 |
| 2018 | 0.0217029 |
| 2017 | 0.0231214 |
| 2016 | 0.0243707 |
| 2015 | 0.0244158 |
| 2014 | 0.0259148 |
| 2013 | 0.0263464 |
| 2012 | 0.0274869 |
| 2011 | 0.0279434 |
| 2010 | 0.027464 |
| 2009 | 0.0263291 |
| 2008 | 0.0239521 |
| 2007 | 0.0221896 |
| 2006 | 0.0236865 |
| 2005 | 0.0252051 |
| 2004 | 0.0247429 |
| 2003 | 0.0242684 |
| 2002 | 0.024462 |
| 2001 | 0.0253348 |
| 2000 | 0.0268399 |
| 1999 | 0.0269317 |
| 1998 | 0.0256568 |
| 1997 | 0.0243819 |
| 1996 | 0.0251928 |
| 1995 | 0.0252527 |
| 1994 | 0.0252692 |
| 1993 | 0.0253003 |
| 1992 | 0.0260543 |
| 1991 | 0.0261379 |
| 1990 | 0.0263156 |
| 1989 | 0.0265751 |
| 1988 | 0.0268573 |
| 1987 | 0.027887 |
| 1986 | 0.0281882 |
| 1985 | 0.0284751 |
| 1984 | 0.0287543 |
| 1983 | 0.029034 |
| 1982 | 0.0300893 |
| 1981 | 0.0303478 |
| 1980 | 0.0304726 |
| 1979 | 0.0305045 |
| 1978 | 0.0305482 |
| 1977 | 0.031391 |
| 1976 | 0.0314832 |
| 1975 | 0.0316473 |
| 1974 | 0.0318761 |
| 1973 | 0.0321376 |
| 1972 | 0.0332393 |
| 1971 | 0.033562 |
| 1970 | 0.0338835 |
| 1969 | 0.0341997 |
| 1968 | 0.0336964 |
| 1967 | 0.0340628 |
| 1966 | 0.0344483 |
| 1965 | 0.0348335 |
| 1964 | 0.0352125 |
| 1963 | 0.035584 |
| 1962 | 0.035945 |
| 1961 | 0.0362894 |
| 1960 | - |