Year Total 1965 689790 1966 735760 1967 902790 1968 946380 1969 959320 1970 1075900 1971 1350700 1972 1492800 1973 1600400 1974 1768100 1975 2030800 1976 1558500 1977 2241600 1978 2337200 1979 2296000 1980 2324900 1981 2054900 1982 2461000 1983 2801700 1984 2809700 1985 3045700 1986 3358300 1987 3247900 1988 3074000 1989 3402700 1990 3374100 1991 3263500 1992 3300300 1993 3722500 1994 4498600 1995 5009300 1996 5743700 1997 5749300 1998 5876900 1999 5980000 2000 6550900 2001 7194600 2002 12047000 2003 8883800 2004 9090300 2005 11473000 2006 12313000 2007 11314000 2008 10107000 2009 10296000 2010 12736000 2011 14731000 2012 12835000 2013 12745000 2014 12720000 2015 12696000 2016 9814100