Year	constant 2015 US$
2002	1128687589.1583452
2003	1085206847.360913
2004	1242824536.376605
2005	1059843081.312411
2006	914907275.3209702
2007	675763195.4350928
2008	481911554.92154074
2009	404914407.9885878
2010	423031383.7375179
2011	413067047.07560635
2012	432995720.3994295
2013	473758915.8345222
2014	503651925.8202568
2015	635000000
2016	1018174037.0898716
2017	966540656.2054209
2018	721055634.807418
2019	709279600.5706134
2020	540791726.1055634