Year | Value | 2022 | 473,612 | 2021 | 450,326 | 2020 | 430,093 | 2019 | 405,086 | 2018 | 371,772 | 2017 | 336,598 | 2016 | 301,466 | 2015 | 266,887 | 2014 | 241,146 | 2013 | 228,560 | 2012 | 224,254 | 2011 | 226,499 | 2010 | 231,097 | 2009 | 239,161 | 2008 | 253,210 | 2007 | 268,335 | 2006 | 281,462 | 2005 | 290,660 | 2004 | 294,671 | 2003 | 292,547 | 2002 | 285,935 | 2001 | 278,938 | 2000 | 274,050 | 1999 | 270,657 | 1998 | 269,617 | 1997 | 268,384 | 1996 | 264,886 | 1995 | 258,164 | 1994 | 249,206 | 1993 | 237,602 | 1992 | 223,085 | 1991 | 207,770 | 1990 | 193,083 | 1989 | 178,535 | 1988 | 162,934 | 1987 | 148,359 | 1986 | 136,725 | 1985 | 129,133 | 1984 | 125,803 | 1983 | 127,003 | 1982 | 131,255 | 1981 | 135,223 | 1980 | 137,029 | 1979 | 136,778 | 1978 | 134,258 | 1977 | 130,531 | 1976 | 129,272 | 1975 | 132,459 | 1974 | 139,322 | 1973 | 149,732 | 1972 | 162,236 | 1971 | 172,679 | 1970 | 178,509 | 1969 | 180,040 | 1968 | 177,768 | 1967 | 172,046 | 1966 | 164,448 | 1965 | 156,100 | 1964 | 146,796 | 1963 | 136,013 | 1962 | 124,855 | 1961 | 114,964 | 1960 | 107,137 |
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