Year	current US$
2005	1737292609.7440066
2006	1981062916.4815724
2007	3114553740.6135507
2008	3510101817.467568
2009	3402954339.1962466
2010	5084050291.210282
2011	5451949616.412196
2012	6041541968.644334
2013	6340184864.050703
2014	6936696029.063719
2015	7410279831.847386
2016	6722252202.4140625
2017	5757163831.723201
2018	8002735565.300758
2019	7051941556.7656765