Year current US$ 2011 3980000.01907349 2012 3505965.4712677 2013 3746561.05041504 2014 3917959.92851257 2015 3299460.64949036 2016 1880836.6060257 2017 4258867.26379395 2018 3446218.01376343 2019 4633220.19577026 2020 5181803.70330811 2021 8201622.00927734 2022 13112888.3361816