Year	constant 2010 US$
1990	6357857589.75576
1991	5613988348.08092
1992	3267341064.49481
1993	2979815090.2181
1994	3140725188.01139
1995	3357435176.22065
1996	3554362204.25785
1997	3672405405.82638
1998	3940491000.05925
1999	4070527203.13965
2000	4310688308.16703
2001	4722645335.95263
2002	5345387542.93892
2003	6095922452.74993
2004	6734033974.76835
2005	7667755681.43806
2006	8679746346.03114
2007	9873142200.55556
2008	10554389012.5961
2009	9060944166.36197
2010	9260284937.79782
2011	9695518329.76298
2012	10393595649.8606
2013	10736584306.306
2014	11123101341.3964
2015	11479040584.2061
2016	11501998665.3545
2017	12364648565.331
2018	13007610290.7282