| Year | Value | | 2022 | 7,169,192 | | 2021 | 7,046,761 | | 2020 | 6,918,252 | | 2019 | 6,787,161 | | 2018 | 6,651,305 | | 2017 | 6,517,240 | | 2016 | 6,382,483 | | 2015 | 6,244,558 | | 2014 | 6,106,960 | | 2013 | 5,973,167 | | 2012 | 5,844,360 | | 2011 | 5,720,207 | | 2010 | 5,600,483 | | 2009 | 5,488,074 | | 2008 | 5,382,429 | | 2007 | 5,282,461 | | 2006 | 5,186,355 | | 2005 | 5,092,229 | | 2004 | 4,998,341 | | 2003 | 4,903,815 | | 2002 | 4,807,863 | | 2001 | 4,710,283 | | 2000 | 4,610,591 | | 1999 | 4,533,237 | | 1998 | 4,477,229 | | 1997 | 4,416,157 | | 1996 | 4,325,232 | | 1995 | 4,207,760 | | 1994 | 4,096,400 | | 1993 | 4,004,065 | | 1992 | 3,929,537 | | 1991 | 3,828,850 | | 1990 | 3,702,674 | | 1989 | 3,567,585 | | 1988 | 3,436,903 | | 1987 | 3,323,019 | | 1986 | 3,213,601 | | 1985 | 3,111,648 | | 1984 | 3,014,609 | | 1983 | 2,920,177 | | 1982 | 2,829,813 | | 1981 | 2,742,846 | | 1980 | 2,658,644 | | 1979 | 2,575,828 | | 1978 | 2,491,587 | | 1977 | 2,406,734 | | 1976 | 2,324,199 | | 1975 | 2,244,717 | | 1974 | 2,168,453 | | 1973 | 2,095,297 | | 1972 | 2,024,777 | | 1971 | 1,956,283 | | 1970 | 1,889,313 | | 1969 | 1,833,375 | | 1968 | 1,785,874 | | 1967 | 1,738,660 | | 1966 | 1,692,102 | | 1965 | 1,646,034 | | 1964 | 1,600,343 | | 1963 | 1,555,138 | | 1962 | 1,510,569 | | 1961 | 1,467,012 | | 1960 | 1,424,853 |
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