Year | Value | 2022 | 733,200 | 2021 | 690,943 | 2020 | 663,595 | 2019 | 640,030 | 2018 | 621,691 | 2017 | 607,942 | 2016 | 597,575 | 2015 | 589,663 | 2014 | 582,322 | 2013 | 573,786 | 2012 | 565,257 | 2011 | 558,544 | 2010 | 552,446 | 2009 | 546,006 | 2008 | 535,733 | 2007 | 524,799 | 2006 | 516,524 | 2005 | 509,586 | 2004 | 506,991 | 2003 | 510,373 | 2002 | 520,642 | 2001 | 536,001 | 2000 | 552,749 | 1999 | 567,772 | 1998 | 582,320 | 1997 | 594,912 | 1996 | 599,565 | 1995 | 599,938 | 1994 | 602,464 | 1993 | 600,899 | 1992 | 592,999 | 1991 | 584,065 | 1990 | 571,935 | 1989 | 560,431 | 1988 | 551,547 | 1987 | 517,743 | 1986 | 484,015 | 1985 | 440,011 | 1984 | 384,107 | 1983 | 329,098 | 1982 | 290,954 | 1981 | 277,193 | 1980 | 293,952 | 1979 | 340,700 | 1978 | 399,352 | 1977 | 448,819 | 1976 | 483,858 | 1975 | 503,230 | 1974 | 498,747 | 1973 | 472,967 | 1972 | 436,411 | 1971 | 402,176 | 1970 | 381,336 | 1969 | 376,293 | 1968 | 385,554 | 1967 | 402,954 | 1966 | 413,664 | 1965 | 407,035 | 1964 | 383,191 | 1963 | 346,639 | 1962 | 302,248 | 1961 | 258,646 | 1960 | 222,918 |
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