Year | Value | 2022 | 58,978 | 2021 | 58,392 | 2020 | 56,754 | 2019 | 54,521 | 2018 | 52,491 | 2017 | 51,044 | 2016 | 50,183 | 2015 | 49,888 | 2014 | 49,941 | 2013 | 50,013 | 2012 | 49,881 | 2011 | 49,313 | 2010 | 48,309 | 2009 | 46,945 | 2008 | 45,314 | 2007 | 43,575 | 2006 | 41,878 | 2005 | 40,275 | 2004 | 38,717 | 2003 | 37,120 | 2002 | 35,421 | 2001 | 33,610 | 2000 | 31,936 | 1999 | 30,147 | 1998 | 28,508 | 1997 | 27,139 | 1996 | 26,059 | 1995 | 25,271 | 1994 | 24,702 | 1993 | 24,184 | 1992 | 23,585 | 1991 | 22,887 | 1990 | 22,130 | 1989 | 20,873 | 1988 | 19,616 | 1987 | 18,772 | 1986 | 18,116 | 1985 | 17,619 | 1984 | 17,167 | 1983 | 16,676 | 1982 | 16,103 | 1981 | 15,450 | 1980 | 14,730 | 1979 | 13,969 | 1978 | 13,252 | 1977 | 12,599 | 1976 | 12,061 | 1975 | 11,720 | 1974 | 11,599 | 1973 | 11,674 | 1972 | 11,837 | 1971 | 11,957 | 1970 | 11,924 | 1969 | 11,620 | 1968 | 11,051 | 1967 | 10,383 | 1966 | 9,779 | 1965 | 9,363 | 1964 | 9,218 | 1963 | 9,342 | 1962 | 9,654 | 1961 | 10,033 | 1960 | 10,358 |
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