Year	current US$
1972	889820.3592814371
1973	4217434.726779855
1974	39049518.89227881
1975	21916004.142060637
1976	8509270.619980348
1977	6819504.892856153
1978	3934029.1807215405
1979	720959.5804350572
1980	-667731.2910762819
1981	-18112097.58507955
1982	-15981939.681274172
1983	-12086540.271978308
1984	-4947918.376086753
1985	-5425901.340531254
1986	-3403178.130101192
1987	-27100554.551947232
1988	-27140306.95956272
1989	-29608347.955910064
1990	-38825408.23710421
1991	-34788653.7628646
1992	-48795584.46823262
1993	-38841434.55554347
1994	-34472697.881412625
1995	-46893737.21769594
1996	-52229457.30489106
1997	-48559174.10084757
1998	-41204120.043120235
1999	-52118441.88522211
2000	-54281853.77432055
2001	-51705676.7154122
2002	-65387901.41929399
2003	-68486732.7230961
2004	-80225282.25735281
2005	-108553105.7150472
2006	-82694109.74470113
2007	-89900737.36143094
2008	-96919263.73410682
2009	-95831918.69529375
2010	-103270606.39778234
2011	-131396840.31262669
2012	-146081828.4512027
2013	-151399649.36771306
2014	-159677304.00238693
2015	-155913335.68729386
2016	-161371092.62912816
2017	-165686923.55210698
2018	-151170045.54651335
2019	-144579484.14571497
2020	-127130120.39901313
2021	-191078937.12853736
2022	-234317225.78908816
2023	-237440290.96639565