Year Total 1965 211000 1966 232000 1967 256000 1968 282000 1969 311000 1970 343000 1971 241650 1972 377560 1973 634840 1974 695280 1975 1288000 1976 1273000 1977 1287800 1978 786900 1979 1135800 1980 1196200 1981 998880 1982 1347300 1983 1271200 1984 982760 1985 966870 1986 952280 1987 936730 1988 966640 1989 710160 1990 710330 1991 1013900 1992 892990 1993 1097700 1994 1102100 1995 1032200 1996 1079800 1997 1106800 1998 1288800 1999 1226600 2000 1303500 2001 1277900 2002 1210800 2003 1311900 2004 1373300 2005 1556600 2006 1502500 2007 1566200 2008 1172800 2009 1357600 2010 1285700 2011 1427300 2012 1123600 2013 1434700 2014 1624900 2015 1636200 2016 1710500