Year	constant 2010 US$
2006	3759.82651794837
2007	4049.33048919128
2008	4297.10320888046
2009	4166.27951366545
2010	4124.58569157203
2011	4088.29441133742
2012	4043.74000187998
2013	4251.83765790892
2014	4397.28407842953
2015	4664.07738797398
2016	4920.93395770912
2017	5075.63938081612