| Year | Value | | 2022 | 7,237,656 | | 2021 | 6,991,148 | | 2020 | 6,766,169 | | 2019 | 6,522,613 | | 2018 | 6,281,224 | | 2017 | 6,066,977 | | 2016 | 5,876,378 | | 2015 | 5,703,284 | | 2014 | 5,535,929 | | 2013 | 5,373,592 | | 2012 | 5,213,913 | | 2011 | 5,057,237 | | 2010 | 4,904,740 | | 2009 | 4,755,308 | | 2008 | 4,605,156 | | 2007 | 4,466,075 | | 2006 | 4,335,090 | | 2005 | 4,213,258 | | 2004 | 4,103,720 | | 2003 | 4,001,346 | | 2002 | 3,899,843 | | 2001 | 3,797,670 | | 2000 | 3,695,328 | | 1999 | 3,590,373 | | 1998 | 3,480,340 | | 1997 | 3,366,224 | | 1996 | 3,250,228 | | 1995 | 3,133,754 | | 1994 | 3,016,821 | | 1993 | 2,902,819 | | 1992 | 2,796,913 | | 1991 | 2,700,795 | | 1990 | 2,616,614 | | 1989 | 2,544,516 | | 1988 | 2,483,156 | | 1987 | 2,428,946 | | 1986 | 2,376,440 | | 1985 | 2,322,544 | | 1984 | 2,266,718 | | 1983 | 2,208,157 | | 1982 | 2,147,088 | | 1981 | 2,086,783 | | 1980 | 2,027,538 | | 1979 | 1,965,925 | | 1978 | 1,902,853 | | 1977 | 1,841,239 | | 1976 | 1,780,232 | | 1975 | 1,718,220 | | 1974 | 1,655,179 | | 1973 | 1,591,976 | | 1972 | 1,530,198 | | 1971 | 1,470,654 | | 1970 | 1,414,624 | | 1969 | 1,361,770 | | 1968 | 1,309,471 | | 1967 | 1,258,090 | | 1966 | 1,209,544 | | 1965 | 1,166,160 | | 1964 | 1,128,460 | | 1963 | 1,095,071 | | 1962 | 1,063,952 | | 1961 | 1,033,915 | | 1960 | 1,003,065 |
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