Year	constant 2010 US$
2007	195234960730.432
2008	184802945638.254
2009	159319488242.19
2010	167012788139.746
2011	172807181700.932
2012	175325650516.442
2013	174751094858.804
2014	179945077825.228
2015	180964914066.569
2016	182268197730.731
2017	189103494547.829
2018	194267792025.513