Year	current US$
1960	8550429000
1961	8703493000
1962	9154557000
1963	9835506000
1964	10652463000
1965	11218882000
1966	11953912000
1967	11922062000
1968	12530617000
1969	13735777000
1970	15442714000
1971	12306888000
1972	17801498000
1973	25573736000
1974	41428740000
1975	39132997000
1976	44998310000
1977	52940335000
1978	56573638000
1979	75281510000
1980	97436051666.67
1981	106338716794.60701
1982	95797014716.898
1983	94738267943.65
1984	104053449977.994
1985	98029908363.45401
1986	81638938134.078
1987	91282683980.916
1988	105637088329.40001
1989	114890402647.53998
1990	126419193200.14001
1991	139974915712.63998
1992	149019337945.93002
1993	159438660705.98
1994	188664907609.43005
1995	227430107668.66
1996	260818634799.8
1997	287732532043.61
1998	283813583704.69006
1999	303439314076.75
2000	362821182387
2001	346831212986
2002	350498593466
2003	383778308128
2004	473965101158
2005	570822305265
2006	681187623963
2007	762464646851
2008	888552744142
2009	685062631568
2010	870228672811
2011	1070228160708
2012	1075539362123
2013	1081616510914
2014	1064037386530
2015	900696769961
2016	867194144247
2017	972201233541
2018	1064299579375
2019	1025288412315
2020	932756282593