Year current US$ 2009 792507361.9411428 2010 800548895.6135066 2011 915926277.9473865 2012 924082152.9082654 2013 545673628.61568 2014 643964110.872035 2015 534649434.49072284 2016 582527386.2786468 2017 679527104.4382073 2018 693863457.8528539 2019 629557507.5664263 2020 686288136.2099831 2021 899782311.7720224 2022 862915604.7386267 2023 731153259.4210339