Year	current US$
1960	119500000
1961	110300000
1962	115700000
1963	125400000
1964	128800000.00000001
1965	119900000
1966	140900000
1967	149500000
1968	159500000
1969	171960000
1970	183870000
1971	217440000
1972	310870000
1973	425590000
1974	925870000
1975	856020000
1976	787820000
1977	924460000
1978	1110540000
1979	1788840000
1980	2233890000
1981	2463710000
1982	1976280000
1983	1776390000
1984	2150660000
1985	1731040000
1986	1729940000
1987	2134989999.9999998
1988	2392876000
1989	2933823969
1990	3551584422
1991	4085026304
1992	4043885460
1993	3804280650
1994	4640695629
1995	5782205435
1996	5516532801
1997	5762749177
1998	5742181732
1999	7266615833
2000	5995983829
2001	6609064348
2002	6798985579
2003	8026816506
2004	9376247717
2005	10092752669
2006	11366398763
2007	14789215707
2008	18599894268
2009	13968759439
2010	15847389855
2011	17160304741
2012	16297860329
2013	16335956810
2014	16012783194
2015	13441843100
2016	12893245469
2017	14203921998
2018	15534652611
2019	14933260358
2020	13815824269