Year | Value | 2022 | 33,828,891 | 2021 | 32,836,114 | 2020 | 31,813,743 | 2019 | 30,790,913 | 2018 | 29,782,029 | 2017 | 28,763,150 | 2016 | 27,753,041 | 2015 | 26,792,610 | 2014 | 25,901,739 | 2013 | 25,095,151 | 2012 | 24,387,708 | 2011 | 23,733,648 | 2010 | 23,104,005 | 2009 | 22,507,125 | 2008 | 21,916,242 | 2007 | 21,319,446 | 2006 | 20,707,963 | 2005 | 20,080,219 | 2004 | 19,475,524 | 2003 | 18,908,753 | 2002 | 18,363,933 | 2001 | 17,867,481 | 2000 | 17,444,240 | 1999 | 17,047,833 | 1998 | 16,638,008 | 1997 | 16,238,570 | 1996 | 15,868,451 | 1995 | 15,488,137 | 1994 | 15,055,609 | 1993 | 14,596,884 | 1992 | 14,143,199 | 1991 | 13,710,341 | 1990 | 13,295,048 | 1989 | 12,852,510 | 1988 | 12,399,096 | 1987 | 11,986,771 | 1986 | 11,615,782 | 1985 | 11,271,162 | 1984 | 10,963,986 | 1983 | 10,683,142 | 1982 | 10,393,194 | 1981 | 10,123,210 | 1980 | 9,903,741 | 1979 | 9,690,647 | 1978 | 9,471,823 | 1977 | 9,290,475 | 1976 | 9,143,425 | 1975 | 8,996,417 | 1974 | 8,845,537 | 1973 | 8,694,383 | 1972 | 8,543,728 | 1971 | 8,403,403 | 1970 | 8,269,407 | 1969 | 8,128,903 | 1968 | 7,978,600 | 1967 | 7,822,877 | 1966 | 7,667,191 | 1965 | 7,512,223 | 1964 | 7,355,653 | 1963 | 7,199,699 | 1962 | 7,045,508 | 1961 | 6,894,412 | 1960 | 6,750,481 |
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