Year	current US$
2005	2751028546.0909276
2006	6640492343.245911
2007	9365308195.118412
2008	14169315902.944088
2009	8177979914.389201
2010	8647088684.008343
2011	10580871748.86407
2012	10346990725.282598
2013	9899653990.110914
2014	10225000000
2015	10966000000
2016	6227599998.474121
2017	11917946290.322792
2018	16096771542.51413
2019	20045650221.544983