Year	constant 2010 US$
2004	31870607709.0437
2005	34543315522.9109
2006	36899192913.6426
2007	40227276598.018
2008	41407292698.2843
2009	37201346068.7931
2010	36429070252.7209
2011	37929528901.6481
2012	39651811130.4847
2013	41214432250.3082
2014	43231798023.0516
2015	42845700758.3872
2016	43832879223.4335
2017	45661657151.9509