Year constant 2010 US$ 2005 2941251503.14415 2006 3750670970.70755 2007 4726258428.11411 2008 6251253664.49504 2009 8129488465.02137 2010 6897812739.13386 2011 7570291403.18694 2012 9950976344.00052 2013 6080682747.38017 2014 5496084907.161 2015 3339405799.24525 2016 1880593032.4787 2017 1487593677.61635 2018 1784738764.38806