Year	current US$
2005	3182179276.5367327
2006	7008999777.476219
2007	11331069729.082396
2008	16538419956.517294
2009	11510021397.249084
2010	13305034031.060095
2011	15372632430.714548
2012	14804328912.4521
2013	14973427205.479536
2014	15349499030.5244
2015	15420497840.752872
2016	10307901538.36306
2017	15061265708.350203
2018	21291654469.86944
2019	25723080447.52103