Year | Value | 2023 | 35,013 | 2022 | 34,338 | 2021 | 34,349 | 2020 | 33,939 | 2019 | 33,001 | 2018 | 31,993 | 2017 | 30,885 | 2016 | 29,661 | 2015 | 28,392 | 2014 | 27,059 | 2013 | 25,611 | 2012 | 24,193 | 2011 | 23,050 | 2010 | 22,317 | 2009 | 22,009 | 2008 | 22,042 | 2007 | 22,218 | 2006 | 22,291 | 2005 | 22,096 | 2004 | 21,573 | 2003 | 20,755 | 2002 | 19,801 | 2001 | 18,824 | 2000 | 17,855 | 1999 | 16,935 | 1998 | 16,083 | 1997 | 15,324 | 1996 | 14,687 | 1995 | 14,186 | 1994 | 13,822 | 1993 | 13,572 | 1992 | 13,379 | 1991 | 13,178 | 1990 | 12,923 | 1989 | 12,610 | 1988 | 12,257 | 1987 | 11,905 | 1986 | 11,608 | 1985 | 11,399 | 1984 | 11,285 | 1983 | 11,254 | 1982 | 11,281 | 1981 | 11,186 | 1980 | 10,931 | 1979 | 10,608 | 1978 | 10,199 | 1977 | 9,726 | 1976 | 9,211 | 1975 | 8,683 | 1974 | 8,152 |
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