| Year | Value | | 2022 | 1,532,985 | | 2021 | 1,560,536 | | 2020 | 1,617,689 | | 2019 | 1,669,900 | | 2018 | 1,698,860 | | 2017 | 1,703,007 | | 2016 | 1,674,420 | | 2015 | 1,620,662 | | 2014 | 1,561,589 | | 2013 | 1,510,708 | | 2012 | 1,458,604 | | 2011 | 1,406,078 | | 2010 | 1,375,581 | | 2009 | 1,347,477 | | 2008 | 1,283,292 | | 2007 | 1,194,769 | | 2006 | 1,101,876 | | 2005 | 1,024,702 | | 2004 | 978,653 | | 2003 | 947,942 | | 2002 | 920,026 | | 2001 | 893,443 | | 2000 | 868,128 | | 1999 | 843,582 | | 1998 | 821,239 | | 1997 | 802,159 | | 1996 | 784,946 | | 1995 | 770,206 | | 1994 | 760,013 | | 1993 | 751,048 | | 1992 | 742,718 | | 1991 | 733,135 | | 1990 | 718,467 | | 1989 | 699,947 | | 1988 | 680,737 | | 1987 | 664,452 | | 1986 | 648,383 | | 1985 | 630,930 | | 1984 | 612,165 | | 1983 | 593,588 | | 1982 | 575,769 | | 1981 | 558,581 | | 1980 | 540,511 | | 1979 | 521,819 | | 1978 | 503,972 | | 1977 | 485,963 | | 1976 | 467,501 | | 1975 | 448,487 | | 1974 | 427,080 | | 1973 | 405,812 | | 1972 | 387,732 | | 1971 | 373,919 | | 1970 | 364,362 | | 1969 | 358,008 | | 1968 | 354,201 | | 1967 | 351,745 | | 1966 | 350,354 | | 1965 | 349,737 | | 1964 | 347,987 | | 1963 | 343,154 | | 1962 | 336,568 | | 1961 | 330,505 | | 1960 | 326,597 |
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