Year Total 1965 14209000 1966 16801000 1967 20340000 1968 21606000 1969 24600000 1970 28066000 1971 30898000 1972 32540000 1973 39138000 1974 41081000 1975 42652000 1976 48346000 1977 45508000 1978 46394000 1979 49146000 1980 52153000 1981 50358000 1982 47760000 1983 47775000 1984 44779000 1985 42880000 1986 42723000 1987 44727000 1988 45778000 1989 48104000 1990 46212000 1991 46975000 1992 53236000 1993 50469000 1994 52286000 1995 57469000 1996 59077000 1997 61566000 1998 66685000 1999 68968000 2000 69898000 2001 73024000 2002 73677000 2003 76152000 2004 78499000 2005 79283000 2006 79314000 2007 80343000 2008 77985000 2009 73547000 2010 72100000 2011 68817000 2012 64729000 2013 59280000 2014 58959000 2015 61200000 2016 62480000