Year current US$ 2012 89783.2065820694 2013 195696.637034416 2014 118119.99976635 2015 133070.006966591 2016 107720.002532005 2017 78259.9970698357 2018 253501.38545036298 2019 432370.007038116 2020 327426.61237716704 2021 327499.98569488496 2022 260787.99366951