Year	constant 2010 US$
1970	9692172473.59138
1971	9935105426.81039
1972	11431637251.8655
1973	13230314398.7306
1974	13154473881.0911
1975	10268479220.4324
1976	12037550183.002
1977	14067804402.9132
1978	15514046242.0543
1979	18054905690.1496
1980	15301936089.4364
1981	16710866110.3529
1982	17557278497.2125
1983	15674243988.7994
1984	15726156262.2299
1985	14396311333.9858
1986	13987097155.1667
1987	13004419503.9293
1988	13154308195.5917
1989	15562082587.3135
1990	19261536232.608
1991	17977868687.4563
1992	15703943147.6917
1993	15052269100.0694
1994	16865236124.6055
1995	20928490096.3257
1996	24289406281.9281
1997	28773792398.3796
1998	33228975485.3401
1999	36275245504.017
2000	38709422164.8322
2001	40156973462.4333
2002	42595581912.3641
2003	46635436085.2333
2004	50063781501.1958
2005	58940130230.2848
2006	64074786107.1076
2007	63368920981.3354
2008	54757991151.4416
2009	44099180866.3178
2010	38303241315.3454
2011	39616059972.5494
2012	46650388969.7871
2013	43882476020.3762
2014	55625674457.2811
2015	84595157323.6396
2016	125564763197.406
2017	119018152314.208
2018	89611922073.8939