Year | Value | 2022 | 571,690 | 2021 | 556,821 | 2020 | 546,036 | 2019 | 537,832 | 2018 | 533,040 | 2017 | 530,208 | 2016 | 527,251 | 2015 | 522,792 | 2014 | 515,475 | 2013 | 504,310 | 2012 | 489,209 | 2011 | 470,666 | 2010 | 449,225 | 2009 | 425,487 | 2008 | 400,569 | 2007 | 375,727 | 2006 | 351,787 | 2005 | 329,462 | 2004 | 308,582 | 2003 | 288,542 | 2002 | 269,040 | 2001 | 250,838 | 2000 | 235,322 | 1999 | 222,766 | 1998 | 214,017 | 1997 | 210,608 | 1996 | 211,285 | 1995 | 213,146 | 1994 | 215,774 | 1993 | 219,021 | 1992 | 220,913 | 1991 | 221,136 | 1990 | 220,856 | 1989 | 220,368 | 1988 | 218,974 | 1987 | 216,251 | 1986 | 212,635 | 1985 | 208,227 | 1984 | 202,455 | 1983 | 194,693 | 1982 | 185,967 | 1981 | 177,237 | 1980 | 168,380 | 1979 | 159,402 | 1978 | 150,181 | 1977 | 141,262 | 1976 | 133,642 | 1975 | 127,533 | 1974 | 122,532 | 1973 | 118,173 | 1972 | 113,819 | 1971 | 109,385 | 1970 | 105,098 | 1969 | 101,122 | 1968 | 97,564 | 1967 | 94,131 | 1966 | 90,561 | 1965 | 87,179 | 1964 | 84,271 | 1963 | 81,712 | 1962 | 79,568 | 1961 | 77,745 | 1960 | 75,113 |
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