Year | Value | 2022 | 588,502 | 2021 | 591,515 | 2020 | 599,778 | 2019 | 612,066 | 2018 | 624,558 | 2017 | 631,759 | 2016 | 631,078 | 2015 | 618,869 | 2014 | 594,245 | 2013 | 563,419 | 2012 | 532,263 | 2011 | 505,555 | 2010 | 487,093 | 2009 | 476,017 | 2008 | 466,797 | 2007 | 456,298 | 2006 | 441,505 | 2005 | 426,677 | 2004 | 415,033 | 2003 | 402,211 | 2002 | 389,170 | 2001 | 377,610 | 2000 | 364,944 | 1999 | 347,605 | 1998 | 326,902 | 1997 | 306,846 | 1996 | 289,884 | 1995 | 276,248 | 1994 | 270,585 | 1993 | 274,549 | 1992 | 280,517 | 1991 | 280,212 | 1990 | 276,699 | 1989 | 274,945 | 1988 | 277,798 | 1987 | 284,846 | 1986 | 285,477 | 1985 | 279,716 | 1984 | 272,455 | 1983 | 260,442 | 1982 | 241,290 | 1981 | 220,125 | 1980 | 186,527 | 1979 | 157,683 | 1978 | 157,462 | 1977 | 163,154 | 1976 | 162,162 | 1975 | 158,137 | 1974 | 153,233 | 1973 | 147,805 | 1972 | 142,749 | 1971 | 138,505 | 1970 | 135,117 | 1969 | 131,724 | 1968 | 128,350 | 1967 | 125,640 | 1966 | 123,265 | 1965 | 121,023 | 1964 | 119,011 | 1963 | 117,351 | 1962 | 115,790 | 1961 | 113,886 | 1960 | 111,416 |
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