Year | Value | 2023 | 55,969 | 2022 | 54,482 | 2021 | 52,992 | 2020 | 51,707 | 2019 | 50,678 | 2018 | 49,886 | 2017 | 49,271 | 2016 | 48,684 | 2015 | 47,989 | 2014 | 47,135 | 2013 | 46,151 | 2012 | 45,120 | 2011 | 44,061 | 2010 | 42,996 | 2009 | 41,983 | 2008 | 41,016 | 2007 | 40,142 | 2006 | 39,340 | 2005 | 38,890 | 2004 | 38,918 | 2003 | 39,094 | 2002 | 38,785 | 2001 | 37,790 | 2000 | 36,686 | 1999 | 35,521 | 1998 | 34,029 | 1997 | 32,121 | 1996 | 30,501 | 1995 | 29,551 | 1994 | 29,050 | 1993 | 28,248 | 1992 | 28,558 | 1991 | 28,572 | 1990 | 26,013 | 1989 | 23,271 | 1988 | 21,334 | 1987 | 19,810 | 1986 | 18,407 | 1985 | 17,220 | 1984 | 16,268 | 1983 | 15,512 | 1982 | 14,853 | 1981 | 14,161 | 1980 | 13,348 | 1979 | 12,392 | 1978 | 11,325 | 1977 | 10,241 | 1976 | 9,245 | 1975 | 8,424 | 1974 | 7,848 |
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