| Year | Value | | 2022 | 4,451,539 | | 2021 | 4,407,703 | | 2020 | 4,387,322 | | 2019 | 4,367,938 | | 2018 | 4,347,806 | | 2017 | 4,325,519 | | 2016 | 4,292,559 | | 2015 | 4,236,544 | | 2014 | 4,177,916 | | 2013 | 4,139,517 | | 2012 | 4,110,918 | | 2011 | 4,088,543 | | 2010 | 4,072,621 | | 2009 | 4,061,602 | | 2008 | 4,049,665 | | 2007 | 4,036,230 | | 2006 | 4,022,191 | | 2005 | 3,999,610 | | 2004 | 3,968,722 | | 2003 | 3,941,237 | | 2002 | 3,918,661 | | 2001 | 3,894,335 | | 2000 | 3,874,820 | | 1999 | 3,862,269 | | 1998 | 3,852,266 | | 1997 | 3,846,259 | | 1996 | 3,840,597 | | 1995 | 3,834,145 | | 1994 | 3,825,993 | | 1993 | 3,806,906 | | 1992 | 3,769,660 | | 1991 | 3,721,041 | | 1990 | 3,675,149 | | 1989 | 3,638,724 | | 1988 | 3,615,788 | | 1987 | 3,605,366 | | 1986 | 3,598,187 | | 1985 | 3,591,139 | | 1984 | 3,585,634 | | 1983 | 3,582,853 | | 1982 | 3,586,340 | | 1981 | 3,580,136 | | 1980 | 3,567,006 | | 1979 | 3,565,870 | | 1978 | 3,572,297 | | 1977 | 3,574,870 | | 1976 | 3,572,618 | | 1975 | 3,580,551 | | 1974 | 3,593,970 | | 1973 | 3,587,388 | | 1972 | 3,562,651 | | 1971 | 3,537,389 | | 1970 | 3,517,940 | | 1969 | 3,502,549 | | 1968 | 3,487,899 | | 1967 | 3,465,960 | | 1966 | 3,433,943 | | 1965 | 3,403,783 | | 1964 | 3,376,789 | | 1963 | 3,350,601 | | 1962 | 3,325,798 | | 1961 | 3,302,775 | | 1960 | 3,282,698 |
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