Year | Value | 2022 | 11,443,727 | 2021 | 11,379,650 | 2020 | 11,257,776 | 2019 | 11,242,988 | 2018 | 11,301,313 | 2017 | 11,455,166 | 2016 | 11,713,840 | 2015 | 11,999,849 | 2014 | 12,202,263 | 2013 | 12,242,151 | 2012 | 12,176,826 | 2011 | 12,008,671 | 2010 | 11,706,061 | 2009 | 11,423,225 | 2008 | 11,215,403 | 2007 | 10,973,732 | 2006 | 10,739,430 | 2005 | 10,560,724 | 2004 | 10,406,544 | 2003 | 10,173,412 | 2002 | 9,870,556 | 2001 | 9,518,798 | 2000 | 8,899,097 | 1999 | 7,997,801 | 1998 | 7,124,993 | 1997 | 6,514,319 | 1996 | 6,347,874 | 1995 | 6,744,691 | 1994 | 7,584,917 | 1993 | 8,628,825 | 1992 | 9,617,240 | 1991 | 10,131,218 | 1990 | 10,149,846 | 1989 | 9,839,311 | 1988 | 9,257,579 | 1987 | 8,693,741 | 1986 | 8,354,400 | 1985 | 8,320,748 | 1984 | 8,591,016 | 1983 | 9,050,239 | 1982 | 9,422,152 | 1981 | 9,553,249 | 1980 | 9,371,470 | 1979 | 8,892,607 | 1978 | 8,209,233 | 1977 | 7,389,690 | 1976 | 6,586,625 | 1975 | 5,900,523 | 1974 | 5,348,462 | 1973 | 4,959,722 | 1972 | 4,659,295 | 1971 | 4,398,583 | 1970 | 4,300,523 | 1969 | 4,399,357 | 1968 | 4,554,921 | 1967 | 4,803,723 | 1966 | 5,127,465 | 1965 | 5,356,590 | 1964 | 5,414,096 | 1963 | 5,350,946 | 1962 | 5,253,723 | 1961 | 5,160,373 | 1960 | 5,034,316 |
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