Year current US$ 2009 536532053650 2010 696165796957 2011 779991564281 2012 851884515619 2013 935865987585 2014 950871233207 2015 947170011667 2016 898097018993 2017 1037437721774 2018 1154440207130 2019 1142160271421 2020 1192809442396 2021 1445042969440 2022 1252103440142