Year current US$ 2010 1779999.97138977 2011 1210000.03814697 2012 -4727.64018923044 2015 816483.914852142 2016 1982074.02229309 2017 1900261.99817657 2018 4332084.17892456 2019 4606061.45858765 2020 -744819.99874115 2021 3847189.90325928 2022 851998.329162598