Year	current US$
1970	1209999.956190586
1971	1960000.060498715
1972	1429999.988526106
1973	8259999.930858618
1974	7089999.947696924
1975	5849999.982863659
1976	7070000.130683195
1977	5690000.083297498
1978	12039999.889209863
1979	16759999.724105008
1980	16439999.977126721
1981	6679999.820888049
1982	20869999.624788772
1983	8439999.982714653
1984	35490000.177174844
1985	12179999.765008682
1986	55549999.04520802
1987	41510000.60513618
1988	56430000.08538361
1989	42570000.73231755
1990	39049999.974668026
1991	48360000.58054919
1992	55400000.2928078
1993	65359999.88019465
1994	63339999.940246336
1995	79880000.39011246
1996	107999998.89731404
1997	94880000.69186094
1998	92120000.33445656
1999	93829999.83243643
2000	90010001.2850017
2001	107140000.19244853
2002	124710000.37528571
2003	115250000.37997961
2004	152050001.67712575
2005	168609999.9099969
2006	250669996.395707
2007	303889997.28113407
2008	298389997.33515084
2009	251030000.06824732
2010	254410000.6781517
2011	215299996.9385563
2012	205690002.1899492
2013	184520001.78955492
2014	166360002.50279897
2015	116490000.3969668
2016	157729999.7732043
2017	83819999.98539682
2018	124810002.58028503
2019	98499999.5231629