Year current US$ 2009 0 2010 0 2011 38940000.2155453 2012 28599583.6816728 2013 56320833.8133991 2014 50075340.1257098 2015 71192606.9706678 2016 56140615.6755984 2017 58063392.3448622 2018 46851978.1716168 2019 69877426.3262749 2020 44015233.691781804 2021 73005899.8018503 2022 25823975.0675857