Year constant 2010 US$ 2007 524326326.295483 2008 564388804.516374 2009 712721010.874933 2010 717827537.317501 2011 691597743.01531 2012 798582265.911549 2013 964624116.056866 2014 1006186679.88797 2015 449279357.497288 2016 334913459.627343 2017 366738915.481394 2018 323623745.057082