Year | Value | 2022 | 73,317 | 2021 | 70,173 | 2020 | 66,489 | 2019 | 62,690 | 2018 | 59,451 | 2017 | 56,677 | 2016 | 54,123 | 2015 | 52,090 | 2014 | 50,657 | 2013 | 49,586 | 2012 | 48,899 | 2011 | 48,902 | 2010 | 48,762 | 2009 | 47,796 | 2008 | 46,360 | 2007 | 44,396 | 2006 | 42,504 | 2005 | 41,022 | 2004 | 39,705 | 2003 | 38,604 | 2002 | 37,768 | 2001 | 36,955 | 2000 | 35,996 | 1999 | 35,024 | 1998 | 34,026 | 1997 | 32,975 | 1996 | 32,143 | 1995 | 31,278 | 1994 | 30,439 | 1993 | 29,160 | 1992 | 28,939 | 1991 | 31,525 | 1990 | 33,585 | 1989 | 34,115 | 1988 | 35,158 | 1987 | 35,582 | 1986 | 34,698 | 1985 | 33,632 | 1984 | 32,604 | 1983 | 31,717 | 1982 | 30,975 | 1981 | 31,106 | 1980 | 31,075 | 1979 | 28,671 | 1978 | 25,430 | 1977 | 23,766 | 1976 | 23,222 | 1975 | 22,739 | 1974 | 22,276 | 1973 | 21,782 | 1972 | 21,256 | 1971 | 20,745 | 1970 | 20,245 | 1969 | 19,754 | 1968 | 19,271 | 1967 | 18,789 | 1966 | 18,301 | 1965 | 17,804 | 1964 | 17,298 | 1963 | 16,779 | 1962 | 16,253 | 1961 | 15,735 | 1960 | 15,228 |
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