| Year | Value | | 2022 | 5,125,642 | | 2021 | 4,987,209 | | 2020 | 4,839,688 | | 2019 | 4,683,093 | | 2018 | 4,516,795 | | 2017 | 4,345,832 | | 2016 | 4,179,749 | | 2015 | 4,019,769 | | 2014 | 3,865,582 | | 2013 | 3,721,931 | | 2012 | 3,590,472 | | 2011 | 3,470,242 | | 2010 | 3,363,624 | | 2009 | 3,270,703 | | 2008 | 3,187,126 | | 2007 | 3,109,223 | | 2006 | 3,033,568 | | 2005 | 2,958,375 | | 2004 | 2,882,544 | | 2003 | 2,806,871 | | 2002 | 2,732,814 | | 2001 | 2,660,954 | | 2000 | 2,592,750 | | 1999 | 2,527,561 | | 1998 | 2,463,911 | | 1997 | 2,400,796 | | 1996 | 2,339,413 | | 1995 | 2,279,966 | | 1994 | 2,213,211 | | 1993 | 2,147,412 | | 1992 | 2,102,915 | | 1991 | 2,076,101 | | 1990 | 2,054,567 | | 1989 | 2,042,127 | | 1988 | 2,031,238 | | 1987 | 2,001,676 | | 1986 | 1,957,761 | | 1985 | 1,909,419 | | 1984 | 1,859,437 | | 1983 | 1,817,894 | | 1982 | 1,779,527 | | 1981 | 1,735,380 | | 1980 | 1,689,591 | | 1979 | 1,643,064 | | 1978 | 1,597,372 | | 1977 | 1,551,982 | | 1976 | 1,509,108 | | 1975 | 1,470,011 | | 1974 | 1,433,630 | | 1973 | 1,399,929 | | 1972 | 1,368,797 | | 1971 | 1,340,005 | | 1970 | 1,312,668 | | 1969 | 1,287,095 | | 1968 | 1,263,384 | | 1967 | 1,240,445 | | 1966 | 1,216,783 | | 1965 | 1,191,612 | | 1964 | 1,166,440 | | 1963 | 1,141,709 | | 1962 | 1,116,917 | | 1961 | 1,091,552 | | 1960 | 1,065,556 |
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