Year | Value | 2022 | 480,084 | 2021 | 481,552 | 2020 | 485,455 | 2019 | 491,031 | 2018 | 497,669 | 2017 | 499,327 | 2016 | 488,961 | 2015 | 468,632 | 2014 | 441,952 | 2013 | 408,455 | 2012 | 374,230 | 2011 | 348,422 | 2010 | 331,006 | 2009 | 319,549 | 2008 | 315,572 | 2007 | 315,667 | 2006 | 315,844 | 2005 | 315,880 | 2004 | 315,439 | 2003 | 313,653 | 2002 | 310,939 | 2001 | 307,275 | 2000 | 302,456 | 1999 | 297,433 | 1998 | 293,074 | 1997 | 289,139 | 1996 | 285,336 | 1995 | 281,262 | 1994 | 276,288 | 1993 | 270,254 | 1992 | 263,040 | 1991 | 254,454 | 1990 | 245,120 | 1989 | 235,894 | 1988 | 227,343 | 1987 | 220,123 | 1986 | 214,794 | 1985 | 211,054 | 1984 | 208,205 | 1983 | 205,871 | 1982 | 203,576 | 1981 | 200,873 | 1980 | 198,592 | 1979 | 196,710 | 1978 | 194,333 | 1977 | 191,752 | 1976 | 189,353 | 1975 | 187,248 | 1974 | 185,360 | 1973 | 183,583 | 1972 | 181,832 | 1971 | 180,068 | 1970 | 178,699 | 1969 | 177,903 | 1968 | 177,447 | 1967 | 177,166 | 1966 | 176,785 | 1965 | 176,129 | 1964 | 175,149 | 1963 | 173,728 | 1962 | 171,972 | 1961 | 170,301 | 1960 | 168,876 |
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