Year	constant 2010 US$
2002	623365638.76652
2003	628440528.634361
2004	631823788.546256
2005	629286343.612335
2006	603066079.295154
2007	614907488.986784
2008	598837004.405286
2009	573462555.066079
2010	576000000
2011	577691629.955947
2012	552317180.61674
2013	537092511.013216
2014	542167400.881057
2015	548933920.704846
2016	534555066.079295
2017	505797356.828194