Year Total 1980 0 1981 0 1982 0 1983 0 1984 0 1985 0 1986 0 1987 0 1988 0 1989 0 1990 13500000 1991 13500000 1992 95400000 1993 95400000 1994 120600000 1995 132300000 1996 153900000 1997 153000000 1998 153000000 1999 153000000 2000 153000000 2001 173700000 2002 207000000 2003 198000000 2004 198000000 2005 198000000 2006 198000000 2007 429705000 2008 501318000 2009 613863000 2010 555399000 2011 555399000 2012 555399000 2013 555399000 2014 555399000 2015 555399000 2016 555399000