Year current US$ 2011 1139999.98569489 2012 873796.582221985 2013 927935.4810714719 2014 975095.689296722 2015 2073615.31257629 2016 1020852.68497467 2017 1473698.3776092501 2018 1232738.49487305 2019 696808.338165283 2020 844331.860542297 2021 1744500.041008 2022 1902093.8873291