Year current US$ 2001 4199999.80926514 2002 3900000.09536743 2003 4300000.19073486 2004 4599999.90463257 2005 4599999.90463257 2006 5429999.82833862 2007 6889999.8664856 2008 8399999.61853027 2009 7500000 2010 8699999.80926514 2011 11449999.8092651 2012 11500000 2013 6900000.09536743 2014 7500000 2015 9399999.61853027 2016 11399999.6185303 2017 10100000.3814697 2018 10800000.1907349 2019 9800000.19073486