Year | Value | 2022 | 36,282 | 2021 | 36,781 | 2020 | 37,013 | 2019 | 36,905 | 2018 | 36,511 | 2017 | 35,953 | 2016 | 35,229 | 2015 | 34,336 | 2014 | 33,252 | 2013 | 31,951 | 2012 | 30,514 | 2011 | 29,044 | 2010 | 27,634 | 2009 | 26,981 | 2008 | 27,067 | 2007 | 26,646 | 2006 | 26,286 | 2005 | 26,526 | 2004 | 26,081 | 2003 | 25,169 | 2002 | 24,710 | 2001 | 24,637 | 2000 | 24,805 | 1999 | 25,144 | 1998 | 25,536 | 1997 | 25,860 | 1996 | 26,115 | 1995 | 26,255 | 1994 | 26,223 | 1993 | 26,097 | 1992 | 25,911 | 1991 | 25,646 | 1990 | 25,281 | 1989 | 24,813 | 1988 | 24,271 | 1987 | 23,689 | 1986 | 23,094 | 1985 | 22,540 | 1984 | 22,070 | 1983 | 21,673 | 1982 | 21,343 | 1981 | 21,082 | 1980 | 20,878 | 1979 | 20,702 | 1978 | 20,519 | 1977 | 20,301 | 1976 | 20,005 | 1975 | 19,603 | 1974 | 19,106 | 1973 | 18,515 | 1972 | 17,847 | 1971 | 17,132 | 1970 | 16,407 | 1969 | 15,706 | 1968 | 15,062 | 1967 | 14,501 | 1966 | 14,043 | 1965 | 13,680 | 1964 | 13,392 | 1963 | 13,174 | 1962 | 13,013 | 1961 | 12,892 | 1960 | 12,794 |
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