Year current US$ 2012 348841.24994278 2013 404807.090759277 2014 396420.00198364304 2015 961229.979991913 2016 455199.986696243 2017 750509.977340698 2018 776564.717292786 2019 1845319.98634338 2020 890663.743019104 2021 1512799.97825623 2022 841333.568096161