Year | Value | 2022 | 494,258 | 2021 | 498,041 | 2020 | 501,341 | 2019 | 503,988 | 2018 | 505,533 | 2017 | 506,523 | 2016 | 507,586 | 2015 | 508,341 | 2014 | 508,213 | 2013 | 506,386 | 2012 | 502,161 | 2011 | 496,308 | 2010 | 490,849 | 2009 | 486,999 | 2008 | 485,340 | 2007 | 486,534 | 2006 | 489,653 | 2005 | 492,734 | 2004 | 494,488 | 2003 | 494,533 | 2002 | 494,147 | 2001 | 495,220 | 2000 | 497,472 | 1999 | 500,881 | 1998 | 505,873 | 1997 | 510,531 | 1996 | 513,283 | 1995 | 514,382 | 1994 | 513,899 | 1993 | 510,907 | 1992 | 505,370 | 1991 | 498,380 | 1990 | 490,592 | 1989 | 482,852 | 1988 | 476,204 | 1987 | 470,405 | 1986 | 464,896 | 1985 | 459,847 | 1984 | 454,857 | 1983 | 449,625 | 1982 | 445,041 | 1981 | 441,271 | 1980 | 437,416 | 1979 | 433,720 | 1978 | 430,683 | 1977 | 427,738 | 1976 | 424,431 | 1975 | 420,944 | 1974 | 417,139 | 1973 | 412,732 | 1972 | 408,504 | 1971 | 404,984 | 1970 | 401,211 | 1969 | 397,033 | 1968 | 392,713 | 1967 | 387,605 | 1966 | 381,495 | 1965 | 374,915 | 1964 | 367,993 | 1963 | 360,455 | 1962 | 352,193 | 1961 | 343,124 | 1960 | 333,318 |
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