Year Total 1965 2014000 1966 2014000 1967 2210000 1968 2013000 1969 2149000 1970 2243000 1971 1744300 1972 1812300 1973 1845700 1974 2231900 1975 2268700 1976 2218900 1977 2274700 1978 2299100 1979 2319200 1980 2432300 1981 2478100 1982 2580200 1983 2843900 1984 2960800 1985 3053700 1986 3015300 1987 3791400 1988 3024500 1989 3504200 1990 1597800 1991 2009400 1992 3360900 1993 3523800 1994 4033400 1995 3609400 1996 2798000 1997 3313900 1998 3151600 1999 2516900 2000 2703200 2001 2661900 2002 2189300 2003 2426900 2004 2123700 2005 1338100 2006 3716100 2007 3231200 2008 4912700 2009 4000400 2010 4693200 2011 3733500 2012 4607200 2013 4979500 2014 5241700 2015 5314700 2016 4584700