Year current US$ 2011 1490000.0095367401 2012 687071.025371552 2013 1207103.49082947 2014 853493.094444275 2015 1822955.60836792 2016 1138530.61199188 2017 1634720.32546997 2018 799269.85502243 2019 2364968.06144714 2020 718852.758407593 2021 1865700.00648499 2022 974012.315273285