| Year | Value | | 2022 | 5,402,186 | | 2021 | 5,282,725 | | 2020 | 5,171,222 | | 2019 | 5,083,934 | | 2018 | 5,014,556 | | 2017 | 4,963,698 | | 2016 | 4,919,606 | | 2015 | 4,870,883 | | 2014 | 4,801,752 | | 2013 | 4,705,546 | | 2012 | 4,602,038 | | 2011 | 4,512,583 | | 2010 | 4,467,817 | | 2009 | 4,498,236 | | 2008 | 4,642,820 | | 2007 | 4,870,887 | | 2006 | 5,154,368 | | 2005 | 5,489,153 | | 2004 | 5,794,235 | | 2003 | 5,993,962 | | 2002 | 6,100,989 | | 2001 | 6,120,139 | | 2000 | 6,061,203 | | 1999 | 6,015,824 | | 1998 | 5,964,160 | | 1997 | 5,880,247 | | 1996 | 5,818,123 | | 1995 | 5,744,449 | | 1994 | 5,658,959 | | 1993 | 5,550,673 | | 1992 | 5,384,634 | | 1991 | 5,158,318 | | 1990 | 4,747,288 | | 1989 | 4,109,711 | | 1988 | 3,453,658 | | 1987 | 2,977,141 | | 1986 | 2,810,878 | | 1985 | 3,058,405 | | 1984 | 3,638,224 | | 1983 | 4,387,990 | | 1982 | 5,105,909 | | 1981 | 5,465,535 | | 1980 | 5,465,212 | | 1979 | 5,234,180 | | 1978 | 4,839,721 | | 1977 | 4,492,712 | | 1976 | 4,300,751 | | 1975 | 4,320,687 | | 1974 | 4,567,730 | | 1973 | 4,926,699 | | 1972 | 5,191,983 | | 1971 | 5,288,586 | | 1970 | 5,168,009 | | 1969 | 4,840,484 | | 1968 | 4,372,711 | | 1967 | 3,809,033 | | 1966 | 3,261,400 | | 1965 | 2,828,858 | | 1964 | 2,507,316 | | 1963 | 2,329,869 | | 1962 | 2,226,079 | | 1961 | 2,148,725 | | 1960 | 2,162,413 |
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