Year | Value | 2022 | 21,877,543 | 2021 | 21,276,608 | 2020 | 20,676,705 | 2019 | 20,090,352 | 2018 | 19,515,977 | 2017 | 18,927,991 | 2016 | 18,330,026 | 2015 | 17,747,657 | 2014 | 17,178,768 | 2013 | 16,615,659 | 2012 | 16,075,450 | 2011 | 15,571,756 | 2010 | 15,111,972 | 2009 | 14,688,407 | 2008 | 14,293,369 | 2007 | 13,922,121 | 2006 | 13,560,112 | 2005 | 13,199,746 | 2004 | 12,845,367 | 2003 | 12,497,035 | 2002 | 12,141,692 | 2001 | 11,785,448 | 2000 | 11,441,128 | 1999 | 11,073,995 | 1998 | 10,682,061 | 1997 | 10,340,569 | 1996 | 10,057,766 | 1995 | 9,796,033 | 1994 | 9,574,008 | 1993 | 9,382,810 | 1992 | 9,158,105 | 1991 | 8,911,414 | 1990 | 8,686,928 | 1989 | 8,472,423 | 1988 | 8,278,285 | 1987 | 8,108,993 | 1986 | 7,946,895 | 1985 | 7,788,316 | 1984 | 7,631,892 | 1983 | 7,474,376 | 1982 | 7,318,657 | 1981 | 7,188,702 | 1980 | 7,090,225 | 1979 | 6,987,072 | 1978 | 6,860,425 | 1977 | 6,733,574 | 1976 | 6,619,698 | 1975 | 6,512,860 | 1974 | 6,396,334 | 1973 | 6,268,151 | 1972 | 6,142,810 | 1971 | 6,047,491 | 1970 | 5,954,625 | 1969 | 5,837,363 | 1968 | 5,719,666 | 1967 | 5,603,669 | 1966 | 5,490,976 | 1965 | 5,378,242 | 1964 | 5,264,202 | 1963 | 5,152,867 | 1962 | 5,044,665 | 1961 | 4,938,643 | 1960 | 4,837,902 |
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