Year | Value | 2022 | 60,677 | 2021 | 62,400 | 2020 | 63,226 | 2019 | 63,087 | 2018 | 62,196 | 2017 | 60,804 | 2016 | 59,096 | 2015 | 57,201 | 2014 | 55,172 | 2013 | 53,035 | 2012 | 50,795 | 2011 | 48,439 | 2010 | 46,259 | 2009 | 44,436 | 2008 | 42,816 | 2007 | 41,402 | 2006 | 40,240 | 2005 | 39,337 | 2004 | 38,618 | 2003 | 38,004 | 2002 | 37,448 | 2001 | 37,136 | 2000 | 37,110 | 1999 | 37,094 | 1998 | 36,964 | 1997 | 36,749 | 1996 | 36,497 | 1995 | 36,205 | 1994 | 35,823 | 1993 | 35,282 | 1992 | 34,751 | 1991 | 34,340 | 1990 | 33,857 | 1989 | 33,199 | 1988 | 32,388 | 1987 | 31,497 | 1986 | 30,612 | 1985 | 29,773 | 1984 | 28,986 | 1983 | 28,254 | 1982 | 27,546 | 1981 | 26,842 | 1980 | 26,166 | 1979 | 25,463 | 1978 | 24,571 | 1977 | 23,303 | 1976 | 21,601 | 1975 | 20,028 | 1974 | 19,250 | 1973 | 18,708 | 1972 | 18,344 | 1971 | 18,590 | 1970 | 19,049 | 1969 | 19,387 | 1968 | 19,403 | 1967 | 19,059 | 1966 | 18,487 | 1965 | 17,931 | 1964 | 17,577 | 1963 | 17,451 | 1962 | 17,490 | 1961 | 17,594 | 1960 | 17,651 |
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