Year	current US$
1976	11294826.997541273
1977	23235784.4687359
1978	35958459.06208544
1979	34251063.93058199
1980	44220200.91677814
1981	30864960.54822504
1982	17317988.420371823
1983	22055342.221116293
1984	42804879.25186859
1985	52486456.16205464
1986	69112588.8001409
1987	86379158.4208451
1988	100482327.60918546
1989	98934043.13393672
1990	87415551.05398266
1991	80959569.75846368
1992	88880981.66695952
1993	101791033.65741374
1994	131893369.99090154
1995	133482181.48218149
1996	165935189.842854
1997	134290643.17549422
1998	132076262.32872806
1999	178843387.92700046
2000	153877836.82956594
2001	136651636.4714073
2002	206916947.3979445
2003	177007608.43421346
2004	229112381.8181818
2005	261878509.0909091
2006	204580201.21412572
2007	301467842.40105295
2008	147633998.61883637
2009	143360705.48437393
2010	211753592.6518905
2011	218466586.6302583
2012	235341681.5825942
2013	418748332.92913175
2014	195127485.74511418
2015	280375178.61937785
2016	234791788.37455967
2017	249832706.1523719
2018	185002304.27218747
2019	250222927.68959436
2020	12876630.167401403
2021	-100761323.98508014
2022	120851900.41614133
2023	103937534.80764991