Year	current US$
1965	5739997.704000918
1966	6579997.368001053
1967	9379996.248001501
1968	11759995.296001881
1969	13019994.792002084
1970	12739994.904002039
1971	18595754.854820285
1972	22114540.310253993
1973	47265040.153669015
1974	55042334.03043812
1975	52737766.19049422
1976	52900013.2250033
1977	62100015.52500388
1978	71300017.82500446
1979	86718935.61416014
1980	97565848.43496817
1981	101529321.00699766
1982	92833408.2385966
1983	80513418.90315051
1984	75443459.09276699
1985	47786240.703557044
1986	83237346.34788483
1987	146755971.04762053
1988	203301739.8969328
1989	213026613.6470484
1990	350254181.8351878
1991	364688563.2388916
1992	386323489.29563457
1993	426888046.8531481
1994	436504695.5642084
1995	556821800.4265133
1996	510881996.32083833
1997	566931758.5518284
1998	518971167.18316203
1999	497374246.33569705
2000	588591662.5022984
2001	528535828.3676575
2002	482644683.53144234
2003	725534819.4632763
2004	940142470.121989
2005	1088074070.0904248
2006	1135187104.1618395
2007	1221758617.1901667
2008	1139660108.4367292
2009	1245693721.5191426
2010	1443863169.2905912
2011	1527570177.7629163
2012	1515760022.9672
2013	1362818900.2735975
2014	1355274155.9301245
2015	1288616751.5278945
2016	1191798518.6691885
2017	1312543550.3473525
2018	1354812244.620509
2019	1328789452.9874468
2020	1056269513.9650532
2021	1322032112.2932525
2022	1338118513.168364
2023	1271036109.1234457