Year	current US$
2006	263801935.11667615
2007	423232241.1036128
2008	565354972.9247003
2009	239484746.42936158
2010	321074712.9666048
2011	622092997.3287907
2012	310361961.548752
2013	281197922.5654052
2014	183636440.68123072
2015	537443867.2184556
2016	472520177.4920513
2017	434762353.2073915
2018	220072765.99520808
2019	174477759.29375607
2020	157590828.74955228
2021	11941656.478348639
2022	54997435.497179046
2023	317388011.37174404