Year | Value | 2022 | 492,823 | 2021 | 500,905 | 2020 | 508,326 | 2019 | 514,451 | 2018 | 517,543 | 2017 | 515,579 | 2016 | 509,602 | 2015 | 500,655 | 2014 | 490,870 | 2013 | 482,126 | 2012 | 475,186 | 2011 | 468,116 | 2010 | 461,548 | 2009 | 455,775 | 2008 | 447,973 | 2007 | 437,851 | 2006 | 426,316 | 2005 | 415,956 | 2004 | 407,841 | 2003 | 401,941 | 2002 | 398,377 | 2001 | 396,342 | 2000 | 394,477 | 1999 | 391,296 | 1998 | 386,374 | 1997 | 379,855 | 1996 | 371,632 | 1995 | 361,744 | 1994 | 350,623 | 1993 | 338,474 | 1992 | 325,397 | 1991 | 311,899 | 1990 | 297,897 | 1989 | 283,263 | 1988 | 268,397 | 1987 | 253,634 | 1986 | 239,195 | 1985 | 225,850 | 1984 | 213,839 | 1983 | 203,189 | 1982 | 195,218 | 1981 | 190,122 | 1980 | 186,692 | 1979 | 184,227 | 1978 | 182,841 | 1977 | 181,211 | 1976 | 177,857 | 1975 | 172,878 | 1974 | 166,899 | 1973 | 160,596 | 1972 | 154,434 | 1971 | 149,194 | 1970 | 145,149 | 1969 | 142,178 | 1968 | 140,454 | 1967 | 139,851 | 1966 | 139,432 | 1965 | 138,308 | 1964 | 136,699 | 1963 | 134,863 | 1962 | 132,745 | 1961 | 130,848 | 1960 | 129,456 |
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