Year	constant 2010 US$
1990	9125211055.00274
1991	10521367194.1601
1992	8827427563.48575
1993	8271300199.67932
1994	5839536758.98172
1995	4163589468.04568
1996	4463368391.96154
1997	5173043846.82745
1998	5529985384.3711
1999	4645186612.50462
2000	5328029741.26766
2001	5428937463.26982
2002	5561227332.09537
2003	6998961040.32724
2004	9050602382.94693
2005	10241900240.073
2006	13553182352.0138
2007	15769000988.3238
2008	20234029928.1878
2009	19610554162.854
2010	23264585431.3528
2011	25080512791.3424
2012	23393383950.4169
2013	25430392334.2286
2014	24020016894.1379
2015	19628666721.9651
2016	17240213089.8742
2017	18715569581.6649
2018	19544366747.9822