Year | Value | 2022 | 33,126,817 | 2021 | 32,170,681 | 2020 | 31,229,064 | 2019 | 30,309,141 | 2018 | 29,411,111 | 2017 | 28,504,126 | 2016 | 27,588,579 | 2015 | 26,682,282 | 2014 | 25,829,040 | 2013 | 25,043,537 | 2012 | 24,302,653 | 2011 | 23,604,611 | 2010 | 22,934,464 | 2009 | 22,325,047 | 2008 | 21,745,199 | 2007 | 21,146,405 | 2006 | 20,551,919 | 2005 | 19,973,779 | 2004 | 19,417,879 | 2003 | 18,887,539 | 2002 | 18,383,543 | 2001 | 17,903,270 | 2000 | 17,422,895 | 1999 | 16,941,443 | 1998 | 16,499,889 | 1997 | 16,074,413 | 1996 | 15,726,779 | 1995 | 15,404,806 | 1994 | 14,933,216 | 1993 | 14,397,738 | 1992 | 13,959,802 | 1991 | 13,601,442 | 1990 | 13,246,588 | 1989 | 12,893,261 | 1988 | 12,532,412 | 1987 | 12,157,933 | 1986 | 11,784,910 | 1985 | 11,419,627 | 1984 | 11,064,572 | 1983 | 10,717,308 | 1982 | 10,377,355 | 1981 | 10,051,890 | 1980 | 9,734,292 | 1979 | 9,421,887 | 1978 | 9,109,318 | 1977 | 8,796,217 | 1976 | 8,489,168 | 1975 | 8,192,773 | 1974 | 7,907,598 | 1973 | 7,634,662 | 1972 | 7,372,374 | 1971 | 7,122,200 | 1970 | 6,885,932 | 1969 | 6,661,441 | 1968 | 6,448,501 | 1967 | 6,252,029 | 1966 | 6,069,724 | 1965 | 5,894,298 | 1964 | 5,724,465 | 1963 | 5,560,591 | 1962 | 5,403,529 | 1961 | 5,251,078 | 1960 | 5,104,194 |
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