Year current US$ 2006 1647068867.3875926 2007 1900588123.6956935 2008 2289759909.9726925 2009 1685882150.4953415 2010 1854572868.0863814 2011 2406273551.4598002 2012 2955785736.4301577 2013 3113037358.2280326 2014 3247325580.051543 2015 3733086789.3516483 2016 3672792704.6574197 2017 3689340419.088946 2018 2915678916.8768935 2019 2089898767.2734191 2020 2304722192.2945886 2021 3281226010.0651107 2022 3353756439.132083 2023 3788157360.3503723