Year	constant 2010 US$
1970	39679648157.8973
1971	41439088791.7787
1972	45482593303.3847
1973	48446327252.103
1974	45781169693.1534
1975	48330702138.9601
1976	49393813088.8529
1977	51910669500.0825
1978	54684426057.0934
1979	54906913048.5672
1980	54199469897.1334
1981	55680042483.2215
1982	56349365032.0941
1983	56493568886.6916
1984	57479626019.8766
1985	58586695569.876
1986	60271746361.819
1987	62125088464.0931
1988	64040351717.4223
1989	67244074186.0695
1990	71662893596.7624
1991	72000196748.4635
1992	72923951197.7695
1993	76433014318.7035
1994	80210202377.0179
1995	86498980378.0963
1996	92924713364.4873
1997	101838398382.038
1998	111258650565.304
1999	118129596555.099
2000	129780167121.664
2001	134978287501.211
2002	139521994704.472
2003	147367197003.338
2004	150457413728.432
2005	158642230465.585
2006	166262526271.54
2007	173236247108.005
2008	166446575888.833
2009	151602434194.203
2010	154185036822.916
2011	151849141025.845
2012	151010062059.263
2013	161467336866.255
2014	174256033176.124
2015	183654276590.787
2016	199375667884.785
2017	198688373995.382