Year | Value | 2022 | 79,882,556 | 2021 | 78,199,723 | 2020 | 77,706,606 | 2019 | 78,380,194 | 2018 | 80,512,930 | 2017 | 83,525,369 | 2016 | 86,551,705 | 2015 | 89,521,798 | 2014 | 91,812,151 | 2013 | 92,995,385 | 2012 | 92,822,103 | 2011 | 91,593,113 | 2010 | 90,316,191 | 2009 | 89,117,392 | 2008 | 88,540,356 | 2007 | 87,950,807 | 2006 | 84,582,004 | 2005 | 78,874,281 | 2004 | 73,210,621 | 2003 | 67,735,233 | 2002 | 64,296,993 | 2001 | 64,440,587 | 2000 | 66,254,064 | 1999 | 67,906,503 | 1998 | 68,307,934 | 1997 | 67,289,788 | 1996 | 65,730,130 | 1995 | 63,807,288 | 1994 | 61,407,797 | 1993 | 58,779,218 | 1992 | 55,735,710 | 1991 | 52,532,870 | 1990 | 49,418,270 | 1989 | 46,419,885 | 1988 | 43,929,979 | 1987 | 41,936,002 | 1986 | 40,648,097 | 1985 | 39,906,119 | 1984 | 39,273,051 | 1983 | 38,712,574 | 1982 | 38,320,024 | 1981 | 37,950,347 | 1980 | 37,721,096 | 1979 | 37,709,609 | 1978 | 37,677,151 | 1977 | 37,379,301 | 1976 | 36,773,515 | 1975 | 36,001,887 | 1974 | 35,173,789 | 1973 | 34,295,095 | 1972 | 33,447,601 | 1971 | 32,642,430 | 1970 | 31,838,853 | 1969 | 31,200,012 | 1968 | 30,544,296 | 1967 | 29,819,564 | 1966 | 29,201,226 | 1965 | 28,602,187 | 1964 | 27,937,421 | 1963 | 27,289,927 | 1962 | 26,763,258 | 1961 | 26,432,851 | 1960 | 26,268,987 |
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