Year	constant 2010 US$
2009	674.715842656796
2010	688.851894240545
2011	713.912092889626
2012	731.661006739482
2013	382.221109425649
2014	377.609788413356
2015	376.770474387248
2016	389.850350268676
2017	395.477693947695