Year	current US$
1964	19478921.56862745
1965	21148459.3837535
1966	30742296.918767508
1967	-2209944.751381215
1968	-6442617.046818728
1969	39105642.25690276
1970	53011404.56182473
1971	25332250.300842356
1972	11571535.580524344
1973	46488480.39215686
1974	56367251.46198831
1975	41963053.097345136
1976	1279155.4357592093
1977	15814310.645724257
1978	82589302.76981853
1979	108491769.15799433
1980	88571428.57142858
1981	102674719.58584987
1982	81517352.70379338
1983	40848806.36604775
1984	41832669.322709166
1985	44709462.112288974
1986	41958724.83221477
1987	37208827.07164469
1988	61619610.01414774
1989	70812371.89239798
1990	40291589.08125669
1991	41767693.870640025
1992	36605927.112535045
1993	49081938.32599119
1994	46076359.29776717
1995	59629237.288135596
1996	44731182.795698926
1997	18167091.186958738
1998	26108339.7288309
1999	22710342.53408713
2000	36476267.86482482
2001	69570536.70325245
2002	71650452.5964745
2003	76742152.5618638
2004	76084625.92085293
2005	73935280.73898424
2006	94803283.96314675
2007	101409761.4018021
2008	119860205.29831311
2009	124201704.25176848
2010	141955467.54005128
2011	110122455.77423881
2012	139844402.8344135
2013	171758954.82030115
2014	201064750.61215812
2015	184530555.55555558
2016	161732035.59970367
2017	134755523.51216722
2018	205504239.2284463
2019	201432795.04464987
2020	230538131.15804422
2021	238786235.83195436
2022	214911390.87320653
2023	155879815.43148544