Year current US$ 1998 2000000 1999 2000000 2000 6300000.19073486 2001 7400000.09536743 2002 8600000.38146973 2003 7400000.09536743 2004 9000000 2005 8000000 2006 8100000.38146973 2007 8399999.61853027 2008 8100000.38146973 2009 6400000.09536743 2010 6000000 2011 8300000.19073486 2012 10199999.8092651 2013 10199999.8092651 2014 9399999.61853027 2015 12800000.1907349 2016 14300000.1907349 2017 13699999.8092651