Year | Value | 2022 | 494,922 | 2021 | 497,591 | 2020 | 499,680 | 2019 | 500,767 | 2018 | 500,710 | 2017 | 500,612 | 2016 | 501,617 | 2015 | 502,883 | 2014 | 504,710 | 2013 | 507,434 | 2012 | 509,095 | 2011 | 508,509 | 2010 | 506,256 | 2009 | 502,448 | 2008 | 496,965 | 2007 | 490,219 | 2006 | 482,884 | 2005 | 475,513 | 2004 | 468,877 | 2003 | 463,667 | 2002 | 459,304 | 2001 | 455,000 | 2000 | 450,811 | 1999 | 446,458 | 1998 | 441,580 | 1997 | 436,937 | 1996 | 432,668 | 1995 | 427,992 | 1994 | 422,953 | 1993 | 418,339 | 1992 | 413,941 | 1991 | 409,121 | 1990 | 404,035 | 1989 | 398,593 | 1988 | 392,608 | 1987 | 386,774 | 1986 | 381,501 | 1985 | 376,070 | 1984 | 370,263 | 1983 | 364,097 | 1982 | 357,088 | 1981 | 349,132 | 1980 | 340,722 | 1979 | 332,881 | 1978 | 325,324 | 1977 | 317,161 | 1976 | 308,457 | 1975 | 299,246 | 1974 | 289,675 | 1973 | 279,902 | 1972 | 269,980 | 1971 | 259,926 | 1970 | 249,482 | 1969 | 238,248 | 1968 | 227,340 | 1967 | 217,307 | 1966 | 207,399 | 1965 | 197,921 | 1964 | 188,899 | 1963 | 179,857 | 1962 | 171,496 | 1961 | 164,806 | 1960 | 159,729 |
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