Year	constant 2010 US$
1996	3187296409.4686
1997	2612704708.05297
1998	3108605608.63499
1999	3795436254.3872
2000	4128122854.64289
2001	4366574917.1869
2002	4782387599.54825
2003	5461957750.61538
2004	5716277588.85187
2005	6136019241.83777
2006	6699624002.20276
2007	7733652111.36785
2008	8804195344.43024
2009	9157984972.47351
2010	9316051065.84411
2011	9483942368.534
2012	9497832456.52561
2013	9673168103.72766
2014	9944979608.29584
2015	9958940467.4397
2016	10157290708.5487
2017	10394874461.69
2018	10711062341.9707