| Year | Value | | 2022 | 7,035,658 | | 2021 | 6,879,649 | | 2020 | 6,723,217 | | 2019 | 6,568,936 | | 2018 | 6,418,989 | | 2017 | 6,269,800 | | 2016 | 6,121,445 | | 2015 | 5,979,182 | | 2014 | 5,843,900 | | 2013 | 5,712,630 | | 2012 | 5,584,599 | | 2011 | 5,453,874 | | 2010 | 5,319,801 | | 2009 | 5,187,356 | | 2008 | 5,056,940 | | 2007 | 4,928,236 | | 2006 | 4,802,717 | | 2005 | 4,682,280 | | 2004 | 4,567,035 | | 2003 | 4,457,573 | | 2002 | 4,357,653 | | 2001 | 4,274,117 | | 2000 | 4,205,706 | | 1999 | 4,144,374 | | 1998 | 4,085,500 | | 1997 | 3,953,557 | | 1996 | 3,464,805 | | 1995 | 2,935,750 | | 1994 | 3,424,120 | | 1993 | 3,977,249 | | 1992 | 3,849,597 | | 1991 | 3,760,956 | | 1990 | 3,675,901 | | 1989 | 3,585,501 | | 1988 | 3,490,520 | | 1987 | 3,380,175 | | 1986 | 3,259,933 | | 1985 | 3,143,448 | | 1984 | 3,037,634 | | 1983 | 2,938,311 | | 1982 | 2,834,511 | | 1981 | 2,728,539 | | 1980 | 2,630,799 | | 1979 | 2,543,728 | | 1978 | 2,467,184 | | 1977 | 2,397,751 | | 1976 | 2,330,401 | | 1975 | 2,264,630 | | 1974 | 2,200,558 | | 1973 | 2,137,773 | | 1972 | 2,076,439 | | 1971 | 2,016,919 | | 1970 | 1,957,976 | | 1969 | 1,899,301 | | 1968 | 1,841,910 | | 1967 | 1,786,149 | | 1966 | 1,733,916 | | 1965 | 1,686,693 | | 1964 | 1,644,627 | | 1963 | 1,608,527 | | 1962 | 1,574,025 | | 1961 | 1,536,734 | | 1960 | 1,496,920 |
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