Year constant 2015 US$ 2008 374598134687.95435 2009 393077999189.10345 2010 414223938452.7757 2011 425676468187.44794 2012 456627214133.61676 2013 493138122189.55927 2014 540604776859.8206 2015 575088900831.2543 2016 613076163062.593 2017 647302490779.3373 2018 692589111063.2747 2019 727972239844.6818 2020 738794828495.8312 2021 755796750191.6857