Year	current US$
1967	-34552712.9656717
1968	-27063629.678955756
1969	-26542485.246243533
1970	-20622055.385717273
1971	-26874261.7501067
1972	-46423480.78768364
1973	-71335899.2392197
1974	-151638105.33163404
1975	-162846010.66944638
1976	-94161771.0152129
1977	-71638002.77879709
1978	-222905810.20142797
1979	-243040632.01015878
1980	-253692317.74461094
1981	-238588500.83137047
1982	-205108695.84700206
1983	-209675041.99193445
1984	-219641917.5351361
1985	-357817156.407794
1986	-379081033.51307577
1987	-312194960.15929
1988	-383171671.7433184
1989	-287892196.8108422
1990	-409715118.9451645
1991	-409830444.81197023
1992	-516422342.82882077
1993	-409738463.35818267
1994	-365337426.82896906
1995	-463396629.0419596
1996	-410153017.94187546
1997	-253104594.97607493
1998	-224004508.16509536
1999	-327710371.74511355
2000	-309931084.0323045
2001	-262758815.92652696
2002	-64655323.63274371
2003	-334202290.6306192
2004	-434008142.9969762
2005	-509021798.1046988
2006	-284440488.5384403
2007	-680700058.8287013
2008	-1297452795.5256398
2009	-725708639.136125
2010	-1315938865.9199932
2011	-1099542728.4280293
2012	-424013931.2500318
2013	-1978005150.293453
2014	-2230549164.7080965
2015	-2038082135.5128195
2016	-2367242166.6136255
2017	-2095923279.9756484
2018	-1894872106.646866
2019	-2116505942.0038583
2020	-991565219.6929284
2021	-2215886993.9882045
2022	-2016772635.813483
2023	-2005765362.4620144