Year	constant 2015 US$
2002	897750000
2003	891782051.2820512
2004	776685897.4358974
2005	777538461.5384616
2006	748551282.0512822
2007	720416666.6666667
2008	735762820.5128206
2009	640275641.0256411
2010	569512820.5128206
2011	529442307.6923077
2012	550756410.2564102
2013	573775641.0256411
2014	641980769.2307693
2015	665000000
2016	643685897.4358975
2017	569512820.5128205
2018	566102564.1025641
2019	535410256.4102564
2020	639423076.923077
2021	603615384.6153847
2022	527737179.4871795