Year	constant 2010 US$
1991	76502259833.048
1992	76972216233.6844
1993	81161091890.3711
1994	79304807895.0679
1995	74145868379.7332
1996	72190812582.2235
1997	73048589552.6442
1998	75569459567.4318
1999	79455026384.0052
2000	81599846375.5895
2001	85062301173.1513
2002	91165632588.2347
2003	97970315580.7046
2004	100081463799.658
2005	103089471553.502
2006	104671212452.862
2007	103448111908.244
2008	103419987683.392
2009	98919564660.2251
2010	96927287372.8123
2011	97471327613.582
2012	95506383743.0719
2013	96754100417.0188
2014	100062306029.263
2015	103240230480.297
2016	106378138856.183
2017	110420018093.639
2018	114458270316.631