Year constant 2015 US$ 2008 641492962.5604482 2009 659880484.9204539 2010 714137734.716651 2011 730894432.311777 2012 764104801.4200855 2013 818454284.3322407 2014 840171153.538185 2015 856745175.8356855 2016 794978717.6530787 2017 806429414.2259012 2018 862812503.0248575 2019 949822896.4050124 2020 969754204.1233823 2021 1057250119.7896771 2022 1059431024.1746945 2023 1084152360.7163389