Year	current US$
2003	278671998.44315284
2004	299796847.20075274
2005	313461432.6378085
2006	327034236.018227
2007	322427701.3010083
2008	368095680.5543051
2009	293124227.8534424
2010	335379595.7557465
2011	391416041.68746614
2012	422582674.49014896
2013	403467613.622605
2014	492688865.6984531
2015	425793638.34844923
2016	498431455.38776284
2017	543428463.8566762
2018	563185205.631567
2019	553794040.1955365
2020	537850542.145765
2021	565824091.2800518