Year | Value | 2022 | 88,576 | 2021 | 84,685 | 2020 | 80,929 | 2019 | 76,623 | 2018 | 71,977 | 2017 | 67,303 | 2016 | 62,207 | 2015 | 56,037 | 2014 | 48,783 | 2013 | 41,633 | 2012 | 36,421 | 2011 | 35,105 | 2010 | 38,798 | 2009 | 46,732 | 2008 | 56,767 | 2007 | 66,039 | 2006 | 71,856 | 2005 | 73,359 | 2004 | 71,500 | 2003 | 67,971 | 2002 | 64,431 | 2001 | 61,855 | 2000 | 61,103 | 1999 | 62,734 | 1998 | 65,487 | 1997 | 67,634 | 1996 | 68,848 | 1995 | 68,978 | 1994 | 67,523 | 1993 | 64,068 | 1992 | 58,593 | 1991 | 51,968 | 1990 | 45,263 | 1989 | 38,982 | 1988 | 34,462 | 1987 | 31,996 | 1986 | 30,397 | 1985 | 29,888 | 1984 | 30,755 | 1983 | 32,298 | 1982 | 34,451 | 1981 | 37,578 | 1980 | 40,530 | 1979 | 42,196 | 1978 | 42,780 | 1977 | 42,623 | 1976 | 41,789 | 1975 | 40,629 | 1974 | 39,417 | 1973 | 38,282 | 1972 | 37,192 | 1971 | 35,790 | 1970 | 33,823 | 1969 | 31,378 | 1968 | 28,578 | 1967 | 25,564 | 1966 | 22,754 | 1965 | 20,417 | 1964 | 18,482 | 1963 | 16,878 | 1962 | 15,745 | 1961 | 15,276 | 1960 | 15,599 |
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