Year current US$ 2008 656606368798.3594 2009 606824080901.7847 2010 712236125463.7164 2011 815499588864.6785 2012 908817543885.8429 2013 985903821653.8383 2014 1078849405414.8553 2015 1027233171386.9618 2016 967608594894.0984 2017 947985833830.3302 2018 1036334913474.4596 2019 1057461338252.562 2020 995483759107.5499 2021 1086578791180.7294 2022 1159913339726.0217 2023 1023959036037.3104