Year | Value | 2022 | 39,123 | 2021 | 38,471 | 2020 | 37,909 | 2019 | 37,375 | 2018 | 36,816 | 2017 | 36,158 | 2016 | 35,342 | 2015 | 34,364 | 2014 | 33,289 | 2013 | 32,208 | 2012 | 31,219 | 2011 | 30,403 | 2010 | 29,736 | 2009 | 29,156 | 2008 | 28,616 | 2007 | 28,047 | 2006 | 27,414 | 2005 | 26,722 | 2004 | 25,997 | 2003 | 25,258 | 2002 | 24,487 | 2001 | 23,592 | 2000 | 22,570 | 1999 | 21,537 | 1998 | 20,580 | 1997 | 19,761 | 1996 | 19,113 | 1995 | 18,616 | 1994 | 18,219 | 1993 | 17,881 | 1992 | 17,590 | 1991 | 17,342 | 1990 | 17,116 | 1989 | 16,907 | 1988 | 16,698 | 1987 | 16,463 | 1986 | 16,178 | 1985 | 15,830 | 1984 | 15,430 | 1983 | 15,000 | 1982 | 14,629 | 1981 | 14,375 | 1980 | 14,143 | 1979 | 13,865 | 1978 | 13,557 | 1977 | 13,248 | 1976 | 12,966 | 1975 | 12,849 | 1974 | 12,962 | 1973 | 13,215 | 1972 | 13,565 | 1971 | 13,916 | 1970 | 14,219 | 1969 | 14,520 | 1968 | 14,809 | 1967 | 15,004 | 1966 | 14,974 | 1965 | 14,546 | 1964 | 13,644 | 1963 | 12,383 | 1962 | 10,997 | 1961 | 9,833 | 1960 | 9,505 |
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