Year | Value | 2022 | 22,293,578 | 2021 | 21,571,709 | 2020 | 20,925,218 | 2019 | 20,327,494 | 2018 | 19,768,250 | 2017 | 19,223,638 | 2016 | 18,681,858 | 2015 | 18,140,408 | 2014 | 17,601,730 | 2013 | 17,074,275 | 2012 | 16,563,443 | 2011 | 16,068,743 | 2010 | 15,586,568 | 2009 | 15,115,917 | 2008 | 14,658,878 | 2007 | 14,213,479 | 2006 | 13,785,620 | 2005 | 13,382,475 | 2004 | 13,001,126 | 2003 | 12,641,473 | 2002 | 12,301,138 | 2001 | 11,969,837 | 2000 | 11,638,210 | 1999 | 11,283,440 | 1998 | 10,922,383 | 1997 | 10,601,648 | 1996 | 10,314,434 | 1995 | 10,038,196 | 1994 | 9,795,389 | 1993 | 9,571,610 | 1992 | 9,327,405 | 1991 | 9,078,192 | 1990 | 8,831,457 | 1989 | 8,589,583 | 1988 | 8,374,123 | 1987 | 8,177,700 | 1986 | 7,980,827 | 1985 | 7,790,067 | 1984 | 7,610,394 | 1983 | 7,437,030 | 1982 | 7,262,841 | 1981 | 7,092,237 | 1980 | 6,939,317 | 1979 | 6,798,724 | 1978 | 6,653,301 | 1977 | 6,512,335 | 1976 | 6,373,499 | 1975 | 6,227,325 | 1974 | 6,080,736 | 1973 | 5,935,212 | 1972 | 5,794,009 | 1971 | 5,657,653 | 1970 | 5,523,859 | 1969 | 5,397,309 | 1968 | 5,275,944 | 1967 | 5,155,947 | 1966 | 5,038,229 | 1965 | 4,920,767 | 1964 | 4,803,539 | 1963 | 4,691,191 | 1962 | 4,584,214 | 1961 | 4,480,251 | 1960 | 4,382,708 |
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