Year	constant 2010 US$
2006	1295476537.05768
2007	1171233296.1773
2008	1041622494.6998
2009	985578847.288702
2010	956688741.721854
2011	957162350.009835
2012	978632592.398312
2013	985420977.859375
2014	985105239.000721
2015	921010250.693943
2016	863230039.560247
2017	858493956.680436
2018	873017944.178524