Year | Value | 2022 | 52,283 | 2021 | 50,871 | 2020 | 49,429 | 2019 | 47,963 | 2018 | 46,484 | 2017 | 44,995 | 2016 | 43,482 | 2015 | 41,941 | 2014 | 40,358 | 2013 | 38,717 | 2012 | 37,014 | 2011 | 35,255 | 2010 | 33,454 | 2009 | 31,603 | 2008 | 29,728 | 2007 | 27,869 | 2006 | 26,061 | 2005 | 24,334 | 2004 | 22,720 | 2003 | 21,235 | 2002 | 20,039 | 2001 | 19,114 | 2000 | 18,286 | 1999 | 17,468 | 1998 | 16,836 | 1997 | 16,611 | 1996 | 16,676 | 1995 | 16,900 | 1994 | 17,235 | 1993 | 17,411 | 1992 | 17,275 | 1991 | 16,989 | 1990 | 16,630 | 1989 | 16,248 | 1988 | 15,869 | 1987 | 15,524 | 1986 | 15,232 | 1985 | 14,986 | 1984 | 14,770 | 1983 | 14,649 | 1982 | 14,600 | 1981 | 14,529 | 1980 | 14,429 | 1979 | 14,300 | 1978 | 14,135 | 1977 | 13,930 | 1976 | 13,707 | 1975 | 13,479 | 1974 | 13,249 | 1973 | 12,957 | 1972 | 12,597 | 1971 | 12,194 | 1970 | 11,720 | 1969 | 11,186 | 1968 | 10,588 | 1967 | 9,961 | 1966 | 9,392 | 1965 | 8,924 | 1964 | 8,547 | 1963 | 8,262 | 1962 | 8,055 | 1961 | 7,864 | 1960 | 7,661 |
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