Year Total 1980 28800000 1981 28800000 1982 24300000 1983 23400000 1984 22500000 1985 24300000 1986 49500000 1987 306000000 1988 306000000 1989 306000000 1990 305100000 1991 308700000 1992 293400000 1993 298800000 1994 306000000 1995 180900000 1996 180900000 1997 178200000 1998 222300000 1999 222300000 2000 222300000 2001 222300000 2002 222300000 2003 222300000 2004 292500000 2005 300600000 2006 298422000 2007 301239000 2008 305874000 2009 305874000 2010 317592000 2011 323658000 2012 391860000 2013 383472000 2014 372744000 2015 358830000 2016 358830000