Year constant 2010 US$ 2002 573405405.405406 2003 603270270.27027 2004 582364864.864865 2005 495756756.756757 2006 523630630.630631 2007 513675675.675676 2008 506707207.207207 2009 429058558.558559 2010 442000000 2011 428063063.063063 2012 438018018.018018 2013 460914414.414414 2014 480824324.324324 2015 496752252.252252 2016 515666666.666667 2017 542545045.045045