Year | Value | 2022 | 52,971 | 2021 | 52,846 | 2020 | 52,839 | 2019 | 51,969 | 2018 | 49,995 | 2017 | 47,634 | 2016 | 45,247 | 2015 | 43,071 | 2014 | 41,459 | 2013 | 40,418 | 2012 | 39,707 | 2011 | 39,113 | 2010 | 38,460 | 2009 | 37,840 | 2008 | 37,258 | 2007 | 36,665 | 2006 | 36,046 | 2005 | 35,431 | 2004 | 34,811 | 2003 | 34,155 | 2002 | 33,508 | 2001 | 32,948 | 2000 | 32,523 | 1999 | 32,221 | 1998 | 32,041 | 1997 | 31,947 | 1996 | 31,862 | 1995 | 31,638 | 1994 | 31,188 | 1993 | 30,523 | 1992 | 29,713 | 1991 | 28,868 | 1990 | 28,027 | 1989 | 27,223 | 1988 | 26,444 | 1987 | 25,674 | 1986 | 24,907 | 1985 | 24,111 | 1984 | 23,270 | 1983 | 22,389 | 1982 | 21,431 | 1981 | 20,378 | 1980 | 19,252 | 1979 | 18,071 | 1978 | 16,863 | 1977 | 15,684 | 1976 | 14,604 | 1975 | 13,664 | 1974 | 12,868 | 1973 | 12,233 | 1972 | 11,748 | 1971 | 11,346 | 1970 | 10,975 | 1969 | 10,622 | 1968 | 10,294 | 1967 | 9,986 | 1966 | 9,716 | 1965 | 9,492 | 1964 | 9,302 | 1963 | 9,147 | 1962 | 9,030 | 1961 | 8,934 | 1960 | 8,840 |
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