Year	constant 2010 US$
1970	2118026080.1499
1971	2319586529.76145
1972	2388090398.12543
1973	2567996375.43448
1974	2268888488.67248
1975	2041260716.91259
1976	2073947644.93582
1977	1695046893.07191
1978	2185811580.6888
1979	1909435717.96691
1980	2254366704.27924
1981	2247439302.16071
1982	2306706766.80909
1983	2193457350.63241
1984	2316712926.01867
1985	2153029956.31694
1986	2788126183.02008
1987	3238568503.18088
1988	3721929525.64476
1989	4013084640.87419
1990	4223724814.78816
1991	4851695108.14678
1992	4237240831.24931
1993	4642952569.59376
1994	4654454798.66914
1995	5219027012.38515
1996	5095019826.11996
1997	5623975087.58812
1998	6482052475.28877
1999	7359567116.30967
2000	7567725583.67747
2001	7384102079.3621
2002	6981216133.03755
2003	7531166170.98654
2004	7945344160.22526
2005	8588156218.92576
2006	8375725158.26202
2007	9482336092.87992
2008	10410533808.9934
2009	7927269739.67052
2010	9517323413.74126
2011	10802199231.3244
2012	10900472850.4043
2013	11161044091.2046
2014	12522057097.5055
2015	11937616397.8663
2016	12840831495.4611
2017	12997522828.4582
2018	13077212123.5676