Year | Value | 2022 | 33,552 | 2021 | 32,823 | 2020 | 32,068 | 2019 | 31,258 | 2018 | 30,119 | 2017 | 28,575 | 2016 | 26,707 | 2015 | 24,797 | 2014 | 23,164 | 2013 | 21,800 | 2012 | 20,543 | 2011 | 19,421 | 2010 | 18,427 | 2009 | 17,453 | 2008 | 16,677 | 2007 | 16,262 | 2006 | 16,095 | 2005 | 15,974 | 2004 | 15,796 | 2003 | 15,542 | 2002 | 15,124 | 2001 | 14,575 | 2000 | 14,055 | 1999 | 13,659 | 1998 | 13,398 | 1997 | 13,433 | 1996 | 13,709 | 1995 | 14,092 | 1994 | 14,367 | 1993 | 14,338 | 1992 | 14,082 | 1991 | 13,560 | 1990 | 12,863 | 1989 | 12,110 | 1988 | 11,423 | 1987 | 10,922 | 1986 | 10,550 | 1985 | 10,293 | 1984 | 10,230 | 1983 | 10,268 | 1982 | 10,251 | 1981 | 10,101 | 1980 | 9,846 | 1979 | 9,470 | 1978 | 9,048 | 1977 | 8,699 | 1976 | 8,353 | 1975 | 8,024 | 1974 | 7,719 | 1973 | 7,457 | 1972 | 7,250 | 1971 | 7,096 | 1970 | 6,986 | 1969 | 6,899 | 1968 | 6,807 | 1967 | 6,690 | 1966 | 6,534 | 1965 | 6,355 | 1964 | 6,170 | 1963 | 5,988 | 1962 | 5,758 | 1961 | 5,436 | 1960 | 5,220 |
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