Year Total 1985 6780000 1986 6560000 1987 6470000 1988 5720000 1989 5750000 1990 5700000 1991 5400000 1992 5200000 1993 4382000 1994 4192000 1995 4070000 1996 4355000 1997 5368000 1998 6369000 1999 7063000 2000 7061700 2001 7910600 2002 8891600 2003 9906200 2004 9572600 2005 9494100 2006 9194100 2007 9814200 2008 10397000 2009 10496000 2010 10796000 2011 10796000 2012 11199000 2013 11683000 2014 12121000 2015 12724000 2016 12702000