Year	constant 2010 US$
1970	304927431542.023
1971	316520842427.948
1972	346795288089.518
1973	392961215108.285
1974	441197692459.323
1975	471231716436.106
1976	500610587850.78
1977	519844284412.588
1978	540441416101.125
1979	560764737707.869
1980	605503180349.253
1981	596103750448.312
1982	520248384327.1
1983	406923635150.362
1984	421501853705.557
1985	444723298515.746
1986	477376121934.523
1987	497693284332.548
1988	502177498985.919
1989	475950604004.308
1990	466240553170.766
1991	519154396441.654
1992	563029217996.842
1993	581926189980.822
1994	646917209955.958
1995	624347617787.152
1996	642856713165.693
1997	718716997853.663
1998	747213141772.604
1999	684615926596.924
2000	724983101345.096
2001	706831542140.637
2002	672147914930.043
2003	663648999029.852
2004	738607394041.322
2005	798664591546.966
2006	888882626575.508
2007	998553874507.523
2008	1095609814103.72
2009	979242210772.097
2010	1127511052672.22
2011	1235342813431.08
2012	1285101915961.71
2013	1309324246882.23
2014	1268667058630.65
2015	1208835981013.48
2016	1143947630977.39
2017	1144120377220.05
2018	1173743459202.68