Year	constant 2010 US$
2006	979.973320157076
2007	1010.03813372056
2008	1055.04398768459
2009	985.546896797561
2010	979.157375117576
2011	1043.00954280851
2012	1092.1479383672
2013	1220.2672810526
2014	1186.88525700618
2015	1147.36806001211
2016	1157.41641252307
2017	1128.29766961529