Year	constant 2010 US$
2006	620.464663958121
2007	640.621887590589
2008	650.29185540383
2009	669.608680694238
2010	693.02779532398
2011	706.361720221676
2012	733.025372541373
2013	759.156065277191
2014	788.192880322863
2015	827.804720060705
2016	839.265475637472
2017	871.18024777494