Year | Value | 2022 | 81,907,351 | 2021 | 84,630,150 | 2020 | 87,249,557 | 2019 | 89,300,088 | 2018 | 90,376,543 | 2017 | 90,206,332 | 2016 | 89,137,474 | 2015 | 88,075,808 | 2014 | 87,073,676 | 2013 | 86,791,428 | 2012 | 86,629,805 | 2011 | 83,733,173 | 2010 | 78,629,501 | 2009 | 73,648,304 | 2008 | 68,723,346 | 2007 | 65,716,423 | 2006 | 66,158,249 | 2005 | 68,114,421 | 2004 | 69,918,941 | 2003 | 70,511,605 | 2002 | 69,616,698 | 2001 | 68,134,410 | 2000 | 66,240,959 | 1999 | 63,686,030 | 1998 | 60,632,472 | 1997 | 57,009,240 | 1996 | 53,290,910 | 1995 | 49,581,350 | 1994 | 45,748,461 | 1993 | 42,490,401 | 1992 | 39,984,306 | 1991 | 38,446,940 | 1990 | 37,896,138 | 1989 | 38,035,400 | 1988 | 38,558,903 | 1987 | 39,178,932 | 1986 | 39,397,433 | 1985 | 39,273,149 | 1984 | 38,990,117 | 1983 | 38,501,096 | 1982 | 37,887,477 | 1981 | 37,176,481 | 1980 | 36,595,789 | 1979 | 36,235,489 | 1978 | 35,970,801 | 1977 | 35,652,226 | 1976 | 35,234,057 | 1975 | 34,713,847 | 1974 | 34,137,858 | 1973 | 33,401,533 | 1972 | 32,447,946 | 1971 | 31,467,334 | 1970 | 30,291,857 | 1969 | 28,974,069 | 1968 | 27,817,816 | 1967 | 26,833,087 | 1966 | 26,062,672 | 1965 | 25,604,718 | 1964 | 25,601,223 | 1963 | 25,868,081 | 1962 | 26,123,181 | 1961 | 26,336,762 | 1960 | 26,531,359 |
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