Year	current US$
2005	47446360.461207815
2006	6008017.367736707
2007	15940638.715208407
2008	24834744.49528028
2009	-24159676.597423617
2010	-13964653.584271085
2011	-1469738.2298230138
2012	-16117499.738454001
2013	1658315.3423740603
2014	12602375.514385939
2015	2473193.879042261
2016	-13134605.515109546
2017	31315948.210843578
2018	25344686.24851952
2019	11624095.987300146