Year	constant 2011 international $
1995	5264081360.8044
1996	6264163523.56914
1997	6884572059.29923
1998	7287974852.41163
1999	6704289571.77261
2000	8086576081.09324
2001	8579857179.76416
2002	9086068782.392
2003	10766991506.8489
2004	11434544962.6776
2005	13001077656.5565
2006	14015161728.6215
2007	14519707551.309
2008	15361850604.0243
2009	14117540696.3004
2010	15416354480.3506
2011	16837728371.4187
2012	16993308317.3506
2013	18079482584.2692
2014	19069441735.5835
2015	18607037429.2292
2016	19150180900.0716
2017	20162243812.81
2018	20752254625.6662