Year | Value | 2022 | 33,145 | 2021 | 32,283 | 2020 | 31,112 | 2019 | 29,708 | 2018 | 28,257 | 2017 | 26,925 | 2016 | 25,740 | 2015 | 24,710 | 2014 | 23,830 | 2013 | 23,088 | 2012 | 22,459 | 2011 | 21,923 | 2010 | 21,462 | 2009 | 21,027 | 2008 | 20,585 | 2007 | 20,192 | 2006 | 19,872 | 2005 | 19,564 | 2004 | 19,262 | 2003 | 18,964 | 2002 | 18,648 | 2001 | 18,253 | 2000 | 17,715 | 1999 | 17,064 | 1998 | 16,358 | 1997 | 15,624 | 1996 | 14,883 | 1995 | 14,149 | 1994 | 13,430 | 1993 | 12,741 | 1992 | 12,151 | 1991 | 11,714 | 1990 | 11,384 | 1989 | 10,830 | 1988 | 10,383 | 1987 | 10,347 | 1986 | 10,352 | 1985 | 10,336 | 1984 | 10,297 | 1983 | 10,216 | 1982 | 10,084 | 1981 | 10,026 | 1980 | 10,049 | 1979 | 9,996 | 1978 | 9,954 | 1977 | 9,906 | 1976 | 9,777 | 1975 | 9,630 | 1974 | 9,468 | 1973 | 9,319 | 1972 | 9,178 | 1971 | 9,032 | 1970 | 8,881 | 1969 | 8,730 | 1968 | 8,579 | 1967 | 8,437 | 1966 | 8,319 | 1965 | 8,229 | 1964 | 8,173 | 1963 | 8,153 | 1962 | 8,152 | 1961 | 8,141 | 1960 | 8,106 |
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