| Year | Value | | 2022 | 9,803,176 | | 2021 | 9,543,517 | | 2020 | 9,275,507 | | 2019 | 8,999,672 | | 2018 | 8,724,044 | | 2017 | 8,465,728 | | 2016 | 8,205,529 | | 2015 | 7,936,193 | | 2014 | 7,674,769 | | 2013 | 7,402,443 | | 2012 | 7,124,174 | | 2011 | 6,876,116 | | 2010 | 6,652,515 | | 2009 | 6,431,865 | | 2008 | 6,219,438 | | 2007 | 6,015,265 | | 2006 | 5,801,781 | | 2005 | 5,573,656 | | 2004 | 5,342,077 | | 2003 | 5,109,946 | | 2002 | 4,886,985 | | 2001 | 4,672,116 | | 2000 | 4,457,397 | | 1999 | 4,239,751 | | 1998 | 4,031,422 | | 1997 | 3,845,157 | | 1996 | 3,680,084 | | 1995 | 3,542,589 | | 1994 | 3,438,708 | | 1993 | 3,371,592 | | 1992 | 3,330,044 | | 1991 | 3,296,810 | | 1990 | 3,262,403 | | 1989 | 3,227,755 | | 1988 | 3,192,946 | | 1987 | 3,150,989 | | 1986 | 3,100,568 | | 1985 | 3,046,570 | | 1984 | 2,987,543 | | 1983 | 2,918,785 | | 1982 | 2,846,482 | | 1981 | 2,770,815 | | 1980 | 2,697,700 | | 1979 | 2,631,595 | | 1978 | 2,574,511 | | 1977 | 2,518,182 | | 1976 | 2,440,152 | | 1975 | 2,348,611 | | 1974 | 2,262,392 | | 1973 | 2,177,490 | | 1972 | 2,091,423 | | 1971 | 2,013,434 | | 1970 | 1,946,995 | | 1969 | 1,889,349 | | 1968 | 1,839,674 | | 1967 | 1,798,206 | | 1966 | 1,763,178 | | 1965 | 1,735,407 | | 1964 | 1,716,240 | | 1963 | 1,706,152 | | 1962 | 1,701,961 | | 1961 | 1,696,823 | | 1960 | 1,683,192 |
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