| Year | Value | | 2022 | 4,138,184 | | 2021 | 4,060,795 | | 2020 | 3,986,789 | | 2019 | 3,915,722 | | 2018 | 3,846,202 | | 2017 | 3,778,085 | | 2016 | 3,711,507 | | 2015 | 3,646,573 | | 2014 | 3,582,406 | | 2013 | 3,518,949 | | 2012 | 3,456,081 | | 2011 | 3,393,970 | | 2010 | 3,332,908 | | 2009 | 3,273,164 | | 2008 | 3,214,997 | | 2007 | 3,158,566 | | 2006 | 3,103,994 | | 2005 | 3,051,074 | | 2004 | 3,004,543 | | 2003 | 2,961,379 | | 2002 | 2,917,907 | | 2001 | 2,873,416 | | 2000 | 2,827,250 | | 1999 | 2,779,251 | | 1998 | 2,730,333 | | 1997 | 2,679,903 | | 1996 | 2,626,940 | | 1995 | 2,570,476 | | 1994 | 2,506,105 | | 1993 | 2,440,202 | | 1992 | 2,374,292 | | 1991 | 2,308,695 | | 1990 | 2,243,915 | | 1989 | 2,180,224 | | 1988 | 2,118,244 | | 1987 | 2,059,060 | | 1986 | 2,001,624 | | 1985 | 1,944,886 | | 1984 | 1,888,914 | | 1983 | 1,832,704 | | 1982 | 1,775,599 | | 1981 | 1,718,196 | | 1980 | 1,661,300 | | 1979 | 1,607,573 | | 1978 | 1,555,950 | | 1977 | 1,502,810 | | 1976 | 1,449,469 | | 1975 | 1,397,241 | | 1974 | 1,346,390 | | 1973 | 1,296,867 | | 1972 | 1,251,167 | | 1971 | 1,206,801 | | 1970 | 1,149,774 | | 1969 | 1,092,439 | | 1968 | 1,037,799 | | 1967 | 985,836 | | 1966 | 936,649 | | 1965 | 890,055 | | 1964 | 845,865 | | 1963 | 803,762 | | 1962 | 769,726 | | 1961 | 738,405 | | 1960 | 708,375 |
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