| Year | Value | | 2022 | 1,757,327 | | 2021 | 1,753,204 | | 2020 | 1,700,448 | | 2019 | 1,600,934 | | 2018 | 1,493,017 | | 2017 | 1,375,600 | | 2016 | 1,250,687 | | 2015 | 1,169,342 | | 2014 | 1,140,244 | | 2013 | 1,118,210 | | 2012 | 1,104,611 | | 2011 | 1,112,880 | | 2010 | 1,128,189 | | 2009 | 1,134,326 | | 2008 | 1,136,368 | | 2007 | 1,141,357 | | 2006 | 1,148,389 | | 2005 | 1,155,375 | | 2004 | 1,155,377 | | 2003 | 1,149,522 | | 2002 | 1,139,958 | | 2001 | 1,124,508 | | 2000 | 1,108,716 | | 1999 | 1,094,659 | | 1998 | 1,085,219 | | 1997 | 1,079,594 | | 1996 | 1,079,488 | | 1995 | 1,082,377 | | 1994 | 1,047,953 | | 1993 | 967,108 | | 1992 | 867,768 | | 1991 | 750,130 | | 1990 | 630,759 | | 1989 | 596,548 | | 1988 | 646,224 | | 1987 | 717,402 | | 1986 | 798,719 | | 1985 | 871,443 | | 1984 | 902,452 | | 1983 | 898,607 | | 1982 | 890,010 | | 1981 | 885,718 | | 1980 | 883,527 | | 1979 | 876,525 | | 1978 | 869,611 | | 1977 | 865,314 | | 1976 | 862,250 | | 1975 | 854,620 | | 1974 | 842,292 | | 1973 | 824,118 | | 1972 | 798,211 | | 1971 | 767,427 | | 1970 | 730,366 | | 1969 | 691,427 | | 1968 | 659,315 | | 1967 | 629,577 | | 1966 | 602,015 | | 1965 | 587,431 | | 1964 | 584,006 | | 1963 | 581,916 | | 1962 | 582,480 | | 1961 | 581,678 | | 1960 | 581,177 |
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