Year | Value | 2022 | 19,995,942 | 2021 | 19,631,076 | 2020 | 19,175,777 | 2019 | 18,625,036 | 2018 | 17,986,204 | 2017 | 17,314,588 | 2016 | 16,642,939 | 2015 | 15,974,983 | 2014 | 15,321,427 | 2013 | 14,653,665 | 2012 | 13,995,467 | 2011 | 13,382,289 | 2010 | 12,754,802 | 2009 | 12,111,724 | 2008 | 11,458,656 | 2007 | 10,803,643 | 2006 | 10,205,066 | 2005 | 9,631,806 | 2004 | 9,063,440 | 2003 | 8,550,244 | 2002 | 8,115,681 | 2001 | 7,725,414 | 2000 | 7,361,340 | 1999 | 7,037,762 | 1998 | 6,767,930 | 1997 | 6,544,385 | 1996 | 6,341,388 | 1995 | 6,133,961 | 1994 | 5,881,643 | 1993 | 5,594,955 | 1992 | 5,321,354 | 1991 | 5,082,454 | 1990 | 4,864,620 | 1989 | 4,638,103 | 1988 | 4,414,448 | 1987 | 4,208,726 | 1986 | 4,010,062 | 1985 | 3,817,409 | 1984 | 3,630,020 | 1983 | 3,435,774 | 1982 | 3,242,366 | 1981 | 3,065,041 | 1980 | 2,906,589 | 1979 | 2,772,568 | 1978 | 2,655,695 | 1977 | 2,540,984 | 1976 | 2,435,270 | 1975 | 2,339,531 | 1974 | 2,250,189 | 1973 | 2,166,456 | 1972 | 2,091,332 | 1971 | 2,030,485 | 1970 | 1,983,693 | 1969 | 1,938,744 | 1968 | 1,882,434 | 1967 | 1,821,191 | 1966 | 1,767,971 | 1965 | 1,729,142 | 1964 | 1,701,671 | 1963 | 1,678,172 | 1962 | 1,655,018 | 1961 | 1,646,358 | 1960 | 1,665,183 |
|