Year | Value | 2022 | 66,146 | 2021 | 68,380 | 2020 | 69,631 | 2019 | 67,758 | 2018 | 63,209 | 2017 | 57,417 | 2016 | 51,702 | 2015 | 47,379 | 2014 | 45,006 | 2013 | 44,003 | 2012 | 43,415 | 2011 | 42,451 | 2010 | 40,661 | 2009 | 38,155 | 2008 | 34,936 | 2007 | 31,668 | 2006 | 29,025 | 2005 | 27,025 | 2004 | 25,597 | 2003 | 24,755 | 2002 | 24,707 | 2001 | 25,445 | 2000 | 26,720 | 1999 | 28,233 | 1998 | 29,780 | 1997 | 31,567 | 1996 | 33,567 | 1995 | 35,513 | 1994 | 37,104 | 1993 | 37,970 | 1992 | 38,283 | 1991 | 38,419 | 1990 | 38,254 | 1989 | 38,086 | 1988 | 38,690 | 1987 | 37,825 | 1986 | 36,643 | 1985 | 35,473 | 1984 | 34,428 | 1983 | 33,557 | 1982 | 32,926 | 1981 | 32,495 | 1980 | 32,229 | 1979 | 32,123 | 1978 | 32,165 | 1977 | 32,370 | 1976 | 32,677 | 1975 | 33,014 | 1974 | 33,420 | 1973 | 33,910 | 1972 | 34,383 | 1971 | 34,707 | 1970 | 34,725 | 1969 | 34,261 | 1968 | 33,198 | 1967 | 31,690 | 1966 | 30,104 | 1965 | 28,659 | 1964 | 27,391 | 1963 | 26,401 | 1962 | 25,741 | 1961 | 25,338 | 1960 | 25,087 |
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