Year Total 1965 18054000 1966 18490000 1967 20464000 1968 21901000 1969 22965000 1970 24179000 1971 24107000 1972 25098000 1973 25859000 1974 32416000 1975 40155000 1976 44774000 1977 54366000 1978 66692000 1979 80660000 1980 107190000 1981 128000000 1982 151010000 1983 147120000 1984 148310000 1985 145850000 1986 136880000 1987 143040000 1988 142690000 1989 143070000 1990 145170000 1991 152820000 1992 153030000 1993 153280000 1994 154170000 1995 150210000 1996 162360000 1997 169620000 1998 173470000 1999 165490000 2000 170320000 2001 175870000 2002 177820000 2003 188200000 2004 190040000 2005 186490000 2006 182550000 2007 172230000 2008 156900000 2009 146660000 2010 145600000 2011 144520000 2012 143860000 2013 141850000 2014 137100000 2015 127520000 2016 121350000