| Year | Value | | 2022 | 7,743,977 | | 2021 | 7,511,522 | | 2020 | 7,274,411 | | 2019 | 7,035,684 | | 2018 | 6,780,333 | | 2017 | 6,466,478 | | 2016 | 6,035,097 | | 2015 | 5,715,692 | | 2014 | 5,567,976 | | 2013 | 5,355,393 | | 2012 | 5,124,927 | | 2011 | 5,010,353 | | 2010 | 4,904,140 | | 2009 | 4,736,381 | | 2008 | 4,649,545 | | 2007 | 4,621,125 | | 2006 | 4,597,552 | | 2005 | 4,629,707 | | 2004 | 4,771,183 | | 2003 | 4,843,047 | | 2002 | 4,840,170 | | 2001 | 4,825,177 | | 2000 | 4,703,633 | | 1999 | 4,474,046 | | 1998 | 4,347,540 | | 1997 | 4,304,914 | | 1996 | 4,201,752 | | 1995 | 4,179,962 | | 1994 | 4,233,211 | | 1993 | 4,127,778 | | 1992 | 3,935,666 | | 1991 | 3,833,735 | | 1990 | 3,720,573 | | 1989 | 3,581,586 | | 1988 | 3,501,340 | | 1987 | 3,494,224 | | 1986 | 3,482,823 | | 1985 | 3,461,900 | | 1984 | 3,428,537 | | 1983 | 3,381,074 | | 1982 | 3,320,803 | | 1981 | 3,222,903 | | 1980 | 3,124,993 | | 1979 | 3,037,390 | | 1978 | 2,915,912 | | 1977 | 2,815,407 | | 1976 | 2,741,647 | | 1975 | 2,660,039 | | 1974 | 2,599,937 | | 1973 | 2,594,548 | | 1972 | 2,576,464 | | 1971 | 2,551,330 | | 1970 | 2,559,945 | | 1969 | 2,571,984 | | 1968 | 2,551,753 | | 1967 | 2,511,610 | | 1966 | 2,498,417 | | 1965 | 2,495,595 | | 1964 | 2,479,138 | | 1963 | 2,473,495 | | 1962 | 2,478,962 | | 1961 | 2,455,760 | | 1960 | 2,408,891 |
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