Year	constant 2010 US$
1970	83467866295.7917
1971	87912793039.7628
1972	93139844210.1588
1973	98904155313.1335
1974	100270433436.418
1975	108652243133.074
1976	114725440878.342
1977	124292770321.393
1978	133024174435.315
1979	140681248209.219
1980	141252322287.476
1981	142344322039.05
1982	145576072537.572
1983	149059591357.304
1984	150312724561.501
1985	152096288965.781
1986	149966200557.453
1987	153196864895.479
1988	158842953765.771
1989	168563805591.423
1990	172346480242.082
1991	175944422580.271
1992	178307637108.489
1993	177955996852.766
1994	180477050062.888
1995	185970897269.028
1996	191945748419.428
1997	197496628918.602
1998	205697609646.546
1999	212922516436.034
2000	218797068789.918
2001	227260601435.436
2002	237632939240.438
2003	247578633175.892
2004	256773473273.43
2005	265569325338.261
2006	275437201390.362
2007	287532315033.507
2008	293747637032.061
2009	291393913991.709
2010	274144694106.619
2011	249234477369.943
2012	230436922121.615
2013	222395940609.19
2014	222792153575.334
2015	223259685606.466
2016	222864780377.03
2017	224136797622.453
2018	224791147007.477