Year	constant 2010 US$
2000	532.498036692962
2001	527.484764855984
2002	520.986387314019
2003	511.456450705543
2004	515.350556721609
2005	525.029938723189
2006	529.854929797106
2007	536.26611775743
2008	533.890755968945
2009	540.373866115767
2010	555.244217808372
2011	590.824334311802
2012	565.055647195614
2013	554.385267820144
2014	575.745926522938
2015	589.945161970863
2016	611.880063055143
2017	615.970967246461
2018	621.100519900994