Year	current US$
2007	780840386.02114
2008	804852639.567244
2009	486042505.047181
2010	323424449.174461
2011	107788358.041578
2012	183364402.395234
2013	294752013.635883
2014	392093831.486941
2015	351825990.30094
2016	94206893.1861883
2017	-110156097.931895
2018	100053850.625084
2019	93079542.3747976
2020	145021637.303985