Year current US$ 2010 142394700 2011 127261639.585502 2012 121994543.990816 2013 114788207.20849 2014 104035939.293463 2015 98460594.7677072 2016 101346457.704181 2017 106195354.155036 2018 106554290.981115 2019 107470236.174559 2020 101267131.965769 2021 108518381.410268