| Year | Value | | 2022 | 3,680,393 | | 2021 | 3,692,618 | | 2020 | 3,701,056 | | 2019 | 3,704,682 | | 2018 | 3,705,806 | | 2017 | 3,703,832 | | 2016 | 3,698,981 | | 2015 | 3,692,017 | | 2014 | 3,683,321 | | 2013 | 3,673,157 | | 2012 | 3,663,186 | | 2011 | 3,647,574 | | 2010 | 3,632,741 | | 2009 | 3,626,182 | | 2008 | 3,621,396 | | 2007 | 3,617,543 | | 2006 | 3,614,311 | | 2005 | 3,611,300 | | 2004 | 3,607,425 | | 2003 | 3,610,134 | | 2002 | 3,613,651 | | 2001 | 3,616,435 | | 2000 | 3,617,788 | | 1999 | 3,617,376 | | 1998 | 3,614,124 | | 1997 | 3,606,978 | | 1996 | 3,595,869 | | 1995 | 3,580,646 | | 1994 | 3,558,693 | | 1993 | 3,558,372 | | 1992 | 3,559,571 | | 1991 | 3,556,409 | | 1990 | 3,549,367 | | 1989 | 3,539,434 | | 1988 | 3,524,931 | | 1987 | 3,504,773 | | 1986 | 3,479,534 | | 1985 | 3,451,039 | | 1984 | 3,420,403 | | 1983 | 3,378,565 | | 1982 | 3,335,778 | | 1981 | 3,293,524 | | 1980 | 3,251,648 | | 1979 | 3,209,892 | | 1978 | 3,166,531 | | 1977 | 3,120,777 | | 1976 | 3,072,688 | | 1975 | 3,023,687 | | 1974 | 2,986,739 | | 1973 | 2,952,611 | | 1972 | 2,919,059 | | 1971 | 2,886,137 | | 1970 | 2,852,692 | | 1969 | 2,818,256 | | 1968 | 2,782,575 | | 1967 | 2,748,472 | | 1966 | 2,718,921 | | 1965 | 2,686,671 | | 1964 | 2,665,298 | | 1963 | 2,650,321 | | 1962 | 2,637,940 | | 1961 | 2,628,678 | | 1960 | 2,621,705 |
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