Year | Value | 2022 | 1,666,515 | 2021 | 1,648,772 | 2020 | 1,626,206 | 2019 | 1,600,337 | 2018 | 1,570,802 | 2017 | 1,534,640 | 2016 | 1,491,997 | 2015 | 1,445,178 | 2014 | 1,397,197 | 2013 | 1,348,030 | 2012 | 1,297,070 | 2011 | 1,247,450 | 2010 | 1,198,637 | 2009 | 1,152,123 | 2008 | 1,106,772 | 2007 | 1,059,918 | 2006 | 1,013,120 | 2005 | 967,257 | 2004 | 922,976 | 2003 | 880,907 | 2002 | 841,248 | 2001 | 804,331 | 2000 | 769,879 | 1999 | 739,061 | 1998 | 714,925 | 1997 | 696,167 | 1996 | 685,862 | 1995 | 679,935 | 1994 | 666,798 | 1993 | 650,281 | 1992 | 639,278 | 1991 | 632,550 | 1990 | 625,278 | 1989 | 616,071 | 1988 | 609,313 | 1987 | 599,696 | 1986 | 585,819 | 1985 | 570,796 | 1984 | 557,539 | 1983 | 542,860 | 1982 | 523,290 | 1981 | 505,552 | 1980 | 488,099 | 1979 | 469,759 | 1978 | 450,661 | 1977 | 432,590 | 1976 | 415,580 | 1975 | 399,598 | 1974 | 384,654 | 1973 | 370,554 | 1972 | 357,122 | 1971 | 344,730 | 1970 | 333,512 | 1969 | 323,022 | 1968 | 312,981 | 1967 | 303,658 | 1966 | 294,997 | 1965 | 286,678 | 1964 | 278,588 | 1963 | 270,702 | 1962 | 263,079 | 1961 | 255,668 | 1960 | 248,553 |
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