| Year | Value | | 2022 | 4,265,445 | | 2021 | 4,269,275 | | 2020 | 4,184,061 | | 2019 | 4,102,180 | | 2018 | 4,020,262 | | 2017 | 3,922,586 | | 2016 | 3,845,482 | | 2015 | 3,782,172 | | 2014 | 3,715,629 | | 2013 | 3,629,482 | | 2012 | 3,517,549 | | 2011 | 3,376,090 | | 2010 | 3,113,737 | | 2009 | 2,696,734 | | 2008 | 2,273,057 | | 2007 | 1,948,594 | | 2006 | 1,808,962 | | 2005 | 1,953,779 | | 2004 | 2,345,126 | | 2003 | 2,861,720 | | 2002 | 3,357,802 | | 2001 | 3,624,734 | | 2000 | 3,653,888 | | 1999 | 3,514,954 | | 1998 | 3,250,510 | | 1997 | 3,009,665 | | 1996 | 2,891,961 | | 1995 | 2,929,752 | | 1994 | 3,115,355 | | 1993 | 3,384,769 | | 1992 | 3,582,007 | | 1991 | 3,649,156 | | 1990 | 3,569,345 | | 1989 | 3,351,334 | | 1988 | 3,031,236 | | 1987 | 2,649,161 | | 1986 | 2,271,776 | | 1985 | 1,972,776 | | 1984 | 1,758,422 | | 1983 | 1,639,468 | | 1982 | 1,573,252 | | 1981 | 1,517,708 | | 1980 | 1,530,084 | | 1979 | 1,622,961 | | 1978 | 1,705,974 | | 1977 | 1,815,269 | | 1976 | 1,978,495 | | 1975 | 2,084,148 | | 1974 | 2,095,931 | | 1973 | 2,047,708 | | 1972 | 1,985,033 | | 1971 | 1,915,313 | | 1970 | 1,851,221 | | 1969 | 1,787,227 | | 1968 | 1,723,565 | | 1967 | 1,647,771 | | 1966 | 1,542,784 | | 1965 | 1,447,235 | | 1964 | 1,357,103 | | 1963 | 1,268,459 | | 1962 | 1,200,890 | | 1961 | 1,182,922 | | 1960 | 1,176,265 |
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