| Year | Value | | 2022 | 8,767,508 | | 2021 | 8,639,673 | | 2020 | 8,509,834 | | 2019 | 8,380,231 | | 2018 | 8,250,539 | | 2017 | 8,119,332 | | 2016 | 7,987,891 | | 2015 | 7,856,056 | | 2014 | 7,723,659 | | 2013 | 7,590,464 | | 2012 | 7,457,240 | | 2011 | 7,324,691 | | 2010 | 7,191,268 | | 2009 | 7,058,856 | | 2008 | 6,925,630 | | 2007 | 6,791,673 | | 2006 | 6,656,988 | | 2005 | 6,521,662 | | 2004 | 6,385,836 | | 2003 | 6,249,771 | | 2002 | 6,113,334 | | 2001 | 5,972,917 | | 2000 | 5,829,545 | | 1999 | 5,687,708 | | 1998 | 5,552,808 | | 1997 | 5,421,410 | | 1996 | 5,293,236 | | 1995 | 5,165,706 | | 1994 | 5,038,658 | | 1993 | 4,912,026 | | 1992 | 4,784,750 | | 1991 | 4,657,117 | | 1990 | 4,530,225 | | 1989 | 4,405,181 | | 1988 | 4,282,517 | | 1987 | 4,162,784 | | 1986 | 4,046,151 | | 1985 | 3,932,890 | | 1984 | 3,822,983 | | 1983 | 3,716,035 | | 1982 | 3,608,489 | | 1981 | 3,504,506 | | 1980 | 3,409,601 | | 1979 | 3,321,256 | | 1978 | 3,239,125 | | 1977 | 3,162,315 | | 1976 | 3,089,790 | | 1975 | 3,019,535 | | 1974 | 2,950,129 | | 1973 | 2,881,743 | | 1972 | 2,814,121 | | 1971 | 2,746,546 | | 1970 | 2,678,750 | | 1969 | 2,610,477 | | 1968 | 2,541,871 | | 1967 | 2,473,212 | | 1966 | 2,404,771 | | 1965 | 2,336,946 | | 1964 | 2,270,180 | | 1963 | 2,204,540 | | 1962 | 2,140,299 | | 1961 | 2,077,759 | | 1960 | 2,017,122 |
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