Year constant 2015 US$ 2003 9700000 2004 22100000 2005 4140000 2006 101000000 2007 98320000 2008 91430000 2009 69150000 2010 72040000 2011 107950000 2012 92890000 2013 101140000 2014 86110000 2015 100180000 2016 85730000 2017 114990000