Year current US$ 2008 2160000.08583069 2009 1180000.0183284285 2010 4950000.04768371 2011 4920000.085607171 2012 3828597.9032516396 2013 575291.097164154 2014 4862176.8951416 2015 2352643.549442287 2016 720461.010932922 2017 3094293.467700472 2018 6852528.369054197 2019 5785799.17550087 2020 14516209.930181503 2021 11616380.035877232 2022 15194720.809813585