| 年份 | 英国 |
|---|---|
| 2023 | - |
| 2022 | 2.22718 |
| 2021 | 2.16157 |
| 2020 | 2.15678 |
| 2019 | 1.98133 |
| 2018 | 1.93995 |
| 2017 | 1.94767 |
| 2016 | 1.97673 |
| 2015 | 2.04406 |
| 2014 | 2.18412 |
| 2013 | 2.29112 |
| 2012 | 2.41849 |
| 2011 | 2.49661 |
| 2010 | 2.568 |
| 2009 | 2.64772 |
| 2008 | 2.48715 |
| 2007 | 2.37466 |
| 2006 | 2.36967 |
| 2005 | 2.42272 |
| 2004 | 2.49782 |
| 2003 | 2.55206 |
| 2002 | 2.48566 |
| 2001 | 2.41112 |
| 2000 | 2.3728 |
| 1999 | 2.42291 |
| 1998 | 2.49596 |
| 1997 | 2.56015 |
| 1996 | 2.72459 |
| 1995 | 2.8542 |
| 1994 | 3.38193 |
| 1993 | 3.59065 |
| 1992 | 3.86472 |
| 1991 | 4.1168 |
| 1990 | 3.98322 |
| 1989 | 4.04095 |
| 1988 | 4.21429 |
| 1987 | 4.68667 |
| 1986 | 5.05982 |
| 1985 | 5.3207 |
| 1984 | 5.50808 |
| 1983 | 5.39689 |
| 1982 | 5.38133 |
| 1981 | 4.98376 |
| 1980 | 5.0199 |
| 1979 | 4.67976 |
| 1978 | 4.73304 |
| 1977 | 4.92328 |
| 1976 | 5.1755 |
| 1975 | 5.3396 |
| 1974 | 5.06943 |
| 1973 | 4.90616 |
| 1972 | 5.17105 |
| 1971 | 5.07633 |
| 1970 | 5.19741 |
| 1969 | 5.5022 |
| 1968 | 5.94111 |
| 1967 | 6.2357 |
| 1966 | 6.24904 |
| 1965 | 6.43698 |
| 1964 | 6.59606 |
| 1963 | 6.80074 |
| 1962 | 6.94417 |
| 1961 | 6.92139 |
| 1960 | 7.09249 |