Year	constant 2010 US$
1980	4464968632.93461
1981	4508343548.32799
1982	4490396249.93789
1983	4408516102.6749
1984	4398072701.69139
1985	4418487291.28211
1986	4629128495.61035
1987	4793637035.61658
1988	4832616444.49969
1989	4922439076.37557
1990	5023224044.511
1991	5433401052.82628
1992	5824026868.26081
1993	5732034072.22958
1994	5831191371.21901
1995	6058550338.89341
1996	6251898327.44483
1997	6515734716.94711
1998	6730205700.92531
1999	6956965066.76633
2000	7199915048.00653
2001	7284726349.31044
2002	7633567219.04801
2003	7957214772.43437
2004	8933529058.04812
2005	9159481478.76379
2006	9807347653.76403
2007	10334398853.639
2008	10608240991.1714
2009	10639638297.4614
2010	11282192605.0374
2011	11856607186.6558
2012	12456750940.0066
2013	13156162589.0949
2014	13991799668.839
2015	14843393221.7746
2016	15010109593.3061
2017	14879840288.2304
2018	14868728495.8883