Year	constant 2010 US$
2002	848981781.376518
2003	843546558.704453
2004	733755060.728745
2005	734842105.263158
2006	706578947.368421
2007	680489878.54251
2008	694621457.489879
2009	604396761.133603
2010	537000000
2011	500040485.82996
2012	520694331.983806
2013	537000000
2014	596787449.392712
2015	625050607.287449
2016	606570850.202429
2017	528303643.724696