Year	current US$
2005	3658094385.0479
2006	4575539781.677156
2007	6265660134.860792
2008	7233827306.675068
2009	6787747233.217873
2010	8841165928.642189
2011	10151681011.395895
2012	10614748560.717375
2013	10849524925.978052
2014	11508503018.014374
2015	11712047286.879124
2016	10851497249.94433
2017	10398226612.62777
2018	12748181033.043848
2019	11861036316.316092