Year	current US$
2003	13514402945.601036
2004	14722316748.961061
2005	14937012575.656351
2006	16466540616.578611
2007	20563114393.20979
2008	23809713956.392387
2009	24841152446.89676
2010	29185757797.86212
2011	27850436610.183136
2012	26254624230.838337
2013	30071941253.57518
2014	31973977784.519855
2015	33121108547.157085
2016	34963037871.1785
2017	37365133167.81785
2018	35139572487.28665
2019	41590616262.25235