Year current US$ 2011 48460000.15735628 2012 45383686.72132493 2013 57973565.04201887 2014 50920308.232307434 2015 79301843.46437456 2016 55869947.13544846 2017 69082497.35832214 2018 73824274.59955214 2019 66599393.42737201 2020 46166462.704539314 2021 112226299.64351653 2022 84176874.63760377