Year	constant 2010 US$
2007	254879183.633751
2008	278398413.411414
2009	278609278.141402
2010	299072147.505335
2011	297442819.935684
2012	224601310.633893
2013	221399461.715784
2014	288827415.347113
2015	334258096.516387
2016	383196087.125547
2017	454550530.133911
2018	446709333.929843