Year	constant 2010 US$
1975	1814389088.47272
1976	2114427006.68103
1977	2500316638.26788
1978	2777343022.52615
1979	2941965589.68623
1980	3108800680.52089
1981	3161904747.98909
1982	3525225294.37236
1983	3781452248.44178
1984	3951828049.01719
1985	4185485917.88304
1986	4258061369.44503
1987	4489949303.3539
1988	4961690508.34815
1989	5304211344.60031
1990	5779050670.61771
1991	6352131788.07947
1992	6553927152.31788
1993	6249906887.41722
1994	6676951920.5298
1995	8617602649.00662
1996	8937456953.64238
1997	9159814569.53642
1998	9820198675.49669
1999	10230370860.9272
2000	11051099337.7483
2001	11663735099.3378
2002	12023377483.4437
2003	12547562913.9073
2004	13450132450.3311
2005	13976026490.0662
2006	14523311258.2781
2007	15939059602.649
2008	17248264900.6623
2009	16122675496.6887
2010	16613748344.3709
2011	16535986754.9669
2012	16336503311.2583
2013	15402649006.6225
2014	15561549668.8742
2015	15938423841.0596
2016	16651483443.7086
2017	17331125827.8146
2018	17976026490.0662