| Year | Value | | 2022 | 11,095 | | 2021 | 10,337 | | 2020 | 9,999 | | 2019 | 9,910 | | 2018 | 9,772 | | 2017 | 9,593 | | 2016 | 9,133 | | 2015 | 8,128 | | 2014 | 6,499 | | 2013 | 4,611 | | 2012 | 2,870 | | 2011 | 1,478 | | 2010 | 506 | | 2009 | 333 | | 2008 | 808 | | 2007 | 1,311 | | 2006 | 1,694 | | 2005 | 1,880 | | 2004 | 1,992 | | 2003 | 2,143 | | 2002 | 2,278 | | 2001 | 2,358 | | 2000 | 2,366 | | 1999 | 2,315 | | 1998 | 2,226 | | 1997 | 2,115 | | 1996 | 1,998 | | 1995 | 1,904 | | 1994 | 1,835 | | 1993 | 1,785 | | 1992 | 1,755 | | 1991 | 1,731 | | 1990 | 1,700 | | 1989 | 1,649 | | 1988 | 1,577 | | 1987 | 1,490 | | 1986 | 1,396 | | 1985 | 1,316 | | 1984 | 1,257 | | 1983 | 1,205 | | 1982 | 1,138 | | 1981 | 1,057 | | 1980 | 1,019 | | 1979 | 1,042 | | 1978 | 1,061 | | 1977 | 1,042 | | 1976 | 981 | | 1975 | 853 | | 1974 | 696 | | 1973 | 581 | | 1972 | 489 | | 1971 | 414 | | 1970 | 347 | | 1969 | 287 | | 1968 | 243 | | 1967 | 231 | | 1966 | 244 | | 1965 | 255 | | 1964 | 263 | | 1963 | 271 | | 1962 | 274 | | 1961 | 277 | | 1960 | 279 |
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