Year	constant 2010 US$
1991	235303144908.636
1992	239860205430.134
1993	232043588610.011
1994	223746593087.761
1995	228580356065.887
1996	234031930663.269
1997	238206058777.135
1998	238046605291.246
1999	244787212804.381
2000	243643163413.267
2001	241686643399.245
2002	244349961597.823
2003	236763776747.874
2004	263019976657.007
2005	245301104188.46
2006	243332951663.53
2007	245892406910.819
2008	258156037378.959
2009	257466431662.397
2010	246059909341.68
2011	253581877828.23
2012	239306173364.662
2013	248260648621.327
2014	262609990791.825
2015	261235677228.478
2016	258979611109.789
2017	264455918481.732
2018	267183984496.327