Year | Value | 2022 | 721,171 | 2021 | 720,485 | 2020 | 717,935 | 2019 | 714,449 | 2018 | 706,587 | 2017 | 691,823 | 2016 | 671,439 | 2015 | 646,838 | 2014 | 608,700 | 2013 | 550,244 | 2012 | 480,980 | 2011 | 417,933 | 2010 | 368,424 | 2009 | 340,733 | 2008 | 347,398 | 2007 | 380,566 | 2006 | 417,436 | 2005 | 446,478 | 2004 | 467,687 | 2003 | 477,451 | 2002 | 477,296 | 2001 | 472,974 | 2000 | 467,784 | 1999 | 462,640 | 1998 | 448,900 | 1997 | 433,609 | 1996 | 425,802 | 1995 | 417,626 | 1994 | 409,293 | 1993 | 397,257 | 1992 | 379,906 | 1991 | 364,773 | 1990 | 352,725 | 1989 | 338,471 | 1988 | 323,601 | 1987 | 306,951 | 1986 | 288,230 | 1985 | 271,256 | 1984 | 257,564 | 1983 | 242,635 | 1982 | 225,657 | 1981 | 209,159 | 1980 | 199,389 | 1979 | 189,076 | 1978 | 179,832 | 1977 | 180,894 | 1976 | 188,693 | 1975 | 197,029 | 1974 | 198,787 | 1973 | 198,753 | 1972 | 198,709 | 1971 | 199,813 | 1970 | 205,483 | 1969 | 208,386 | 1968 | 205,026 | 1967 | 201,440 | 1966 | 197,778 | 1965 | 194,045 | 1964 | 190,114 | 1963 | 186,113 | 1962 | 182,153 | 1961 | 178,302 | 1960 | 174,610 |
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