Year	current US$
2003	1741237004.3261104
2004	1997093334.281413
2005	2175120186.8962517
2006	2296722695.8867474
2007	2757425508.858771
2008	3334163049.164488
2009	3144621942.6820326
2010	3563501553.588812
2011	4148872206.2200394
2012	3287005418.7535696
2013	3235628647.4113264
2014	3130334663.8831015
2015	2697569987.218908
2016	2823751678.2491484
2017	2932108698.414468
2018	3082292059.1091876
2019	3300213645.8989778
2020	3415710915.918799
2021	3697865777.1858087