Year	current US$
2002	17097637437.954556
2003	22691974545.00316
2004	27514521836.748695
2005	28807095678.377945
2006	32633923640.353218
2007	38052132675.79594
2008	49842048482.56329
2009	46476727379.220894
2010	52955729573.3593
2011	60871978322.861206
2012	58938645072.7547
2013	61922200060.05052
2014	55466763556.223854
2015	54589800702.43585
2016	53212247958.258995
2017	59216025710.9773
2018	63858051801.587875
2019	68175332157.58782
2020	46603470660.07716
2021	56165420118.51961
2022	65656558352.765884