Year Total 1985 8676700 1986 7260300 1987 7967200 1988 7660800 1989 7859500 1990 7512400 1991 8262900 1992 4342700 1993 3790400 1994 3518200 1995 3172700 1996 3295500 1997 3263000 1998 3756000 1999 3085000 2000 2372000 2001 2740000 2002 2530000 2003 2420000 2004 2596600 2005 2777100 2006 2806300 2007 2788500 2008 3060400 2009 2629800 2010 2695300 2011 2607300 2012 2685000 2013 2610200 2014 2553600 2015 2794500 2016 2990900