Year | Value | 2022 | 13,052,577 | 2021 | 12,993,427 | 2020 | 12,735,714 | 2019 | 12,484,205 | 2018 | 12,154,058 | 2017 | 11,751,049 | 2016 | 11,291,207 | 2015 | 10,528,987 | 2014 | 9,449,946 | 2013 | 8,417,893 | 2012 | 7,680,493 | 2011 | 7,411,152 | 2010 | 7,757,779 | 2009 | 8,591,063 | 2008 | 9,633,303 | 2007 | 10,620,666 | 2006 | 11,145,275 | 2005 | 11,160,240 | 2004 | 10,812,553 | 2003 | 10,199,683 | 2002 | 9,638,134 | 2001 | 9,322,006 | 2000 | 9,339,848 | 1999 | 9,669,443 | 1998 | 10,173,994 | 1997 | 10,571,198 | 1996 | 10,801,527 | 1995 | 10,891,080 | 1994 | 10,810,180 | 1993 | 10,576,096 | 1992 | 10,175,560 | 1991 | 9,638,170 | 1990 | 8,988,781 | 1989 | 8,347,483 | 1988 | 7,741,276 | 1987 | 7,142,526 | 1986 | 6,672,015 | 1985 | 6,500,438 | 1984 | 6,658,818 | 1983 | 6,987,046 | 1982 | 7,531,005 | 1981 | 8,165,617 | 1980 | 8,569,256 | 1979 | 8,651,593 | 1978 | 8,530,676 | 1977 | 8,328,919 | 1976 | 8,078,235 | 1975 | 7,862,681 | 1974 | 7,659,217 | 1973 | 7,487,242 | 1972 | 7,328,928 | 1971 | 7,157,266 | 1970 | 7,002,385 | 1969 | 6,800,025 | 1968 | 6,501,778 | 1967 | 6,171,181 | 1966 | 5,894,098 | 1965 | 5,584,516 | 1964 | 5,292,100 | 1963 | 5,099,956 | 1962 | 4,934,939 | 1961 | 4,782,172 | 1960 | 4,621,407 |
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