Year | Value | 2022 | 51,398,545 | 2021 | 50,436,183 | 2020 | 49,403,314 | 2019 | 48,328,849 | 2018 | 47,214,880 | 2017 | 46,127,003 | 2016 | 45,111,785 | 2015 | 44,177,802 | 2014 | 43,357,121 | 2013 | 42,644,285 | 2012 | 41,931,967 | 2011 | 41,144,932 | 2010 | 40,312,726 | 2009 | 39,459,650 | 2008 | 38,609,554 | 2007 | 37,798,066 | 2006 | 36,999,193 | 2005 | 36,224,354 | 2004 | 35,495,502 | 2003 | 34,785,764 | 2002 | 34,087,947 | 2001 | 33,414,532 | 2000 | 32,747,184 | 1999 | 32,045,442 | 1998 | 31,317,654 | 1997 | 30,595,598 | 1996 | 29,876,668 | 1995 | 29,158,902 | 1994 | 28,442,285 | 1993 | 27,701,849 | 1992 | 26,915,864 | 1991 | 26,099,328 | 1990 | 25,262,441 | 1989 | 24,416,526 | 1988 | 23,427,967 | 1987 | 22,332,802 | 1986 | 21,306,164 | 1985 | 20,329,611 | 1984 | 19,398,513 | 1983 | 18,688,759 | 1982 | 18,195,798 | 1981 | 17,757,489 | 1980 | 17,389,187 | 1979 | 17,104,178 | 1978 | 16,911,774 | 1977 | 16,779,431 | 1976 | 16,656,313 | 1975 | 16,499,918 | 1974 | 16,295,801 | 1973 | 16,037,959 | 1972 | 15,732,194 | 1971 | 15,421,410 | 1970 | 15,122,277 | 1969 | 14,821,316 | 1968 | 14,510,967 | 1967 | 14,201,633 | 1966 | 13,905,567 | 1965 | 13,624,086 | 1964 | 13,354,064 | 1963 | 13,096,815 | 1962 | 12,853,098 | 1961 | 12,621,482 | 1960 | 12,402,638 |
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