| Year | Value | | 2022 | 3,093 | | 2021 | 2,995 | | 2020 | 2,854 | | 2019 | 2,670 | | 2018 | 2,456 | | 2017 | 2,225 | | 2016 | 2,014 | | 2015 | 1,847 | | 2014 | 1,726 | | 2013 | 1,660 | | 2012 | 1,642 | | 2011 | 1,636 | | 2010 | 1,628 | | 2009 | 1,628 | | 2008 | 1,622 | | 2007 | 1,594 | | 2006 | 1,550 | | 2005 | 1,494 | | 2004 | 1,431 | | 2003 | 1,369 | | 2002 | 1,312 | | 2001 | 1,257 | | 2000 | 1,210 | | 1999 | 1,174 | | 1998 | 1,139 | | 1997 | 1,088 | | 1996 | 1,021 | | 1995 | 954 | | 1994 | 892 | | 1993 | 839 | | 1992 | 802 | | 1991 | 778 | | 1990 | 755 | | 1989 | 724 | | 1988 | 688 | | 1987 | 649 | | 1986 | 610 | | 1985 | 576 | | 1984 | 539 | | 1983 | 501 | | 1982 | 471 | | 1981 | 441 | | 1980 | 419 | | 1979 | 399 | | 1978 | 373 | | 1977 | 353 | | 1976 | 342 | | 1975 | 328 | | 1974 | 305 | | 1973 | 287 | | 1972 | 264 | | 1971 | 237 | | 1970 | 211 | | 1969 | 195 | | 1968 | 190 | | 1967 | 188 | | 1966 | 188 | | 1965 | 188 | | 1964 | 186 | | 1963 | 183 | | 1962 | 175 | | 1961 | 165 | | 1960 | 155 |
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