| Year | Value | | 2022 | 6,015,763 | | 2021 | 5,861,817 | | 2020 | 5,707,622 | | 2019 | 5,550,790 | | 2018 | 5,393,488 | | 2017 | 5,229,439 | | 2016 | 5,061,149 | | 2015 | 4,896,668 | | 2014 | 4,729,662 | | 2013 | 4,563,706 | | 2012 | 4,404,211 | | 2011 | 4,234,425 | | 2010 | 4,052,256 | | 2009 | 3,869,717 | | 2008 | 3,683,431 | | 2007 | 3,500,232 | | 2006 | 3,341,975 | | 2005 | 3,219,316 | | 2004 | 3,125,725 | | 2003 | 3,052,340 | | 2002 | 2,983,986 | | 2001 | 2,908,026 | | 2000 | 2,824,030 | | 1999 | 2,733,623 | | 1998 | 2,643,838 | | 1997 | 2,562,773 | | 1996 | 2,490,422 | | 1995 | 2,426,535 | | 1994 | 2,370,835 | | 1993 | 2,318,778 | | 1992 | 2,264,825 | | 1991 | 2,185,198 | | 1990 | 2,096,303 | | 1989 | 2,022,692 | | 1988 | 1,946,982 | | 1987 | 1,871,710 | | 1986 | 1,804,537 | | 1985 | 1,743,199 | | 1984 | 1,680,602 | | 1983 | 1,615,835 | | 1982 | 1,546,564 | | 1981 | 1,466,230 | | 1980 | 1,414,721 | | 1979 | 1,397,942 | | 1978 | 1,377,573 | | 1977 | 1,367,362 | | 1976 | 1,362,399 | | 1975 | 1,348,116 | | 1974 | 1,328,944 | | 1973 | 1,307,011 | | 1972 | 1,289,535 | | 1971 | 1,275,487 | | 1970 | 1,259,168 | | 1969 | 1,240,004 | | 1968 | 1,216,847 | | 1967 | 1,185,404 | | 1966 | 1,148,759 | | 1965 | 1,112,139 | | 1964 | 1,077,319 | | 1963 | 1,046,217 | | 1962 | 1,018,324 | | 1961 | 992,159 | | 1960 | 966,899 |
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