| Year | Value | | 2022 | 9,415,142 | | 2021 | 9,251,516 | | 2020 | 9,079,123 | | 2019 | 8,904,426 | | 2018 | 8,728,047 | | 2017 | 8,547,288 | | 2016 | 8,362,698 | | 2015 | 8,175,446 | | 2014 | 7,986,119 | | 2013 | 7,795,435 | | 2012 | 7,603,609 | | 2011 | 7,410,669 | | 2010 | 7,209,913 | | 2009 | 6,998,896 | | 2008 | 6,789,862 | | 2007 | 6,583,425 | | 2006 | 6,379,152 | | 2005 | 6,174,304 | | 2004 | 5,968,735 | | 2003 | 5,762,670 | | 2002 | 5,573,543 | | 2001 | 5,423,785 | | 2000 | 5,274,195 | | 1999 | 5,125,303 | | 1998 | 4,978,137 | | 1997 | 4,831,039 | | 1996 | 4,682,476 | | 1995 | 4,532,820 | | 1994 | 4,383,487 | | 1993 | 4,245,405 | | 1992 | 4,142,005 | | 1991 | 4,039,295 | | 1990 | 3,937,064 | | 1989 | 3,835,877 | | 1988 | 3,737,218 | | 1987 | 3,641,643 | | 1986 | 3,548,512 | | 1985 | 3,457,139 | | 1984 | 3,366,956 | | 1983 | 3,277,878 | | 1982 | 3,190,946 | | 1981 | 3,083,927 | | 1980 | 2,952,150 | | 1979 | 2,822,777 | | 1978 | 2,696,119 | | 1977 | 2,572,446 | | 1976 | 2,452,118 | | 1975 | 2,335,130 | | 1974 | 2,221,742 | | 1973 | 2,111,574 | | 1972 | 2,005,064 | | 1971 | 1,902,080 | | 1970 | 1,802,612 | | 1969 | 1,706,663 | | 1968 | 1,614,207 | | 1967 | 1,524,654 | | 1966 | 1,438,263 | | 1965 | 1,356,061 | | 1964 | 1,277,512 | | 1963 | 1,201,704 | | 1962 | 1,129,378 | | 1961 | 1,060,426 | | 1960 | 995,706 |
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