Year | Value | 2022 | 568,664 | 2021 | 553,789 | 2020 | 538,277 | 2019 | 523,475 | 2018 | 509,475 | 2017 | 494,719 | 2016 | 479,333 | 2015 | 463,972 | 2014 | 448,828 | 2013 | 434,578 | 2012 | 421,010 | 2011 | 407,534 | 2010 | 393,944 | 2009 | 380,210 | 2008 | 366,322 | 2007 | 352,400 | 2006 | 338,881 | 2005 | 326,157 | 2004 | 314,328 | 2003 | 303,296 | 2002 | 292,990 | 2001 | 283,394 | 2000 | 274,526 | 1999 | 266,317 | 1998 | 258,697 | 1997 | 251,470 | 1996 | 244,209 | 1995 | 236,598 | 1994 | 228,628 | 1993 | 220,451 | 1992 | 212,396 | 1991 | 204,902 | 1990 | 198,155 | 1989 | 192,139 | 1988 | 186,872 | 1987 | 182,353 | 1986 | 178,476 | 1985 | 175,455 | 1984 | 170,955 | 1983 | 165,688 | 1982 | 162,355 | 1981 | 160,126 | 1980 | 158,485 | 1979 | 159,627 | 1978 | 162,265 | 1977 | 163,080 | 1976 | 162,112 | 1975 | 159,617 | 1974 | 156,460 | 1973 | 153,028 | 1972 | 149,660 | 1971 | 146,354 | 1970 | 142,872 | 1969 | 139,145 | 1968 | 135,163 | 1967 | 131,023 | 1966 | 127,015 | 1965 | 123,330 | 1964 | 119,911 | 1963 | 116,661 | 1962 | 113,514 | 1961 | 110,379 | 1960 | 107,218 |
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