Year current US$ 2009 0 2010 0 2011 600000.012665987 2012 474492.371082306 2013 671944.2903995509 2014 523049.352690578 2015 733867.347240448 2016 684991.511516273 2017 2483449.5857358 2018 630745.7620278 2019 1312729.7013998001 2020 1336566.43005088 2021 2196499.9788906397 2022 959907.5317382821