Year current US$ 2010 6739210221.811211 2011 6560076917.151523 2012 6486349907.849196 2013 6614504760.557657 2014 6508284316.168242 2015 6596440014.57268 2016 6689406375.365481 2017 7213810392.168249 2018 7478242793.520891 2019 7495584092.776813 2020 7143259858.483385 2021 7822070897.890005 2022 8562295532.716611