Year | Value | 2022 | 546,177 | 2021 | 536,311 | 2020 | 526,143 | 2019 | 517,656 | 2018 | 511,997 | 2017 | 507,923 | 2016 | 504,086 | 2015 | 500,310 | 2014 | 496,143 | 2013 | 490,138 | 2012 | 481,236 | 2011 | 469,316 | 2010 | 453,181 | 2009 | 431,338 | 2008 | 404,477 | 2007 | 374,715 | 2006 | 345,219 | 2005 | 318,582 | 2004 | 296,109 | 2003 | 278,357 | 2002 | 267,105 | 2001 | 261,351 | 2000 | 256,680 | 1999 | 251,500 | 1998 | 245,974 | 1997 | 234,993 | 1996 | 202,792 | 1995 | 169,321 | 1994 | 216,725 | 1993 | 269,335 | 1992 | 263,876 | 1991 | 262,625 | 1990 | 263,168 | 1989 | 264,289 | 1988 | 264,031 | 1987 | 259,971 | 1986 | 252,729 | 1985 | 244,867 | 1984 | 238,075 | 1983 | 231,815 | 1982 | 224,067 | 1981 | 215,127 | 1980 | 206,758 | 1979 | 199,233 | 1978 | 190,717 | 1977 | 181,145 | 1976 | 171,200 | 1975 | 160,137 | 1974 | 148,391 | 1973 | 138,203 | 1972 | 129,532 | 1971 | 121,385 | 1970 | 114,531 | 1969 | 108,941 | 1968 | 104,695 | 1967 | 101,775 | 1966 | 100,340 | 1965 | 100,482 | 1964 | 102,146 | 1963 | 105,277 | 1962 | 108,806 | 1961 | 111,611 | 1960 | 113,337 |
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