Year	constant 2011 international $
1993	8311666010.48785
1994	8725120713.08228
1995	9432569453.30569
1996	10325895087.5837
1997	10139595518.2872
1998	11189768153.9976
1999	11874037516.4931
2000	12465333498.3521
2001	12748132786.0761
2002	13849735480.1875
2003	14947110736.743
2004	16767280806.6996
2005	18813013595.3322
2006	20123032985.0398
2007	20895169220.4132
2008	23558008844.7824
2009	23517507026.2082
2010	25579406094.8554
2011	28243753838.4863
2012	29553914217.087
2013	31256707905.3857
2014	32660124623.6677
2015	34595352412.9626
2016	36928779270.5414
2017	38614949692.5181
2018	40378232622.0132