Year	current US$
1960	1889500000
1961	2469400000
1962	2011797000
1963	2238269000
1964	2325593000
1965	2370441000
1966	2555580000
1967	3701799000
1968	3941692000
1969	4340511000
1970	4881208000
1971	5152386000
1972	6075502000
1973	10478219000
1974	17871331000
1975	16221313000
1976	20364982000
1977	24762236000
1978	37536685000
1979	51787243000
1980	67350048000
1981	71731566811.253
1982	70015079438.314
1983	70528475557.622
1984	77969503559.423
1985	75457698774.03099
1986	76419068807.39601
1987	94645357375.95898
1988	114391233809.66399
1989	132688471750.01
1990	154136519678.27
1991	178171779684.74905
1992	209159923115.97495
1993	232286622691.474
1994	288907626262.6621
1995	356203626800.7099
1996	370184543808.50995
1997	414504247830.1699
1998	406418354254.19696
1999	440767556129.52
2000	538355684441
2001	531598714109
2002	606032918408
2003	750509103821
2004	966057403902
2005	1187264950425
2006	1464115057993
2007	1779549518434
2008	2075887990117
2009	1744907123144
2010	2273878721000
2011	2722190330628
2012	2890256023567
2013	3063810124641
2014	3222884372876
2015	3097546047815
2016	2948050990022
2017	3224761108814
2018	3531730748876
2019	3536840291908
2020	3622775155343