Year	constant 2010 US$
1970	54041913966.6344
1971	57026464872.4665
1972	58578970836.895
1973	60668747690.6107
1974	62474184817.3169
1975	65779657168.0683
1976	69696487627.1887
1977	74069111506.9625
1978	72890921511.0988
1979	75952515742.4513
1980	77524790602.5092
1981	77759061409.072
1982	78631110459.1203
1983	80188420079.9668
1984	82747662313.5254
1985	90381232323.1765
1986	94944894068.6612
1987	94358847555.4942
1988	92366437192.8856
1989	91802007141.8723
1990	92437753062.1811
1991	94364574995.1744
1992	96595505550.8065
1993	98788930605.2667
1994	102142439553.288
1995	105832204682.2
1996	112524257339.032
1997	116035732794.706
1998	119318110613.539
1999	123773505258.514
2000	128948525128.912
2001	131607350933.407
2002	135734618640.562
2003	140066780929.271
2004	147697579589.135
2005	154200257173.583
2006	161850270475.665
2007	170441985887.219
2008	173298500780.367
2009	173347830674.204
2010	179868799117.606
2011	184093987602.371
2012	190487289529.85
2013	195850206402.868
2014	199943478985.247
2015	205173001919.206
2016	207846608222.804
2017	212409530941.679
2018	216733379214.118