Year	current US$
1960	31918254.35370342
1961	39451760.89015897
1962	49364165.53854337
1963	54590795.45266757
1964	54007616.96710353
1965	63869422.77792837
1966	87454924.66642484
1967	56105882.40927765
1968	51153496.87140768
1969	58566572.868084215
1970	70011507.86505002
1971	85780084.32175608
1972	105576519.59322698
1973	146829467.2693919
1974	125912801.15930282
1975	201836608.5289313
1976	237000515.26154202
1977	253675833.19983634
1978	399776062.9836956
1979	602012071.7006117
1980	616701298.9023004
1981	524397195.9330008
1982	423104824.4842742
1983	375494052.1647539
1984	334702553.7768086
1985	297998034.6165326
1986	380827485.1126997
1987	464530515.2589055
1988	417302495.26857173
1989	361801929.17175484
1990	529264180.86792773
1991	394885755.8820015
1992	398954556.20856196
1993	333024230.57815135
1994	254680842.9732734
1995	334744118.7764058
1996	367972057.1359616
1997	310060812.9905436
1998	369279336.4338975
1999	321173939.2472053
2000	321460765.56951994
2001	329494484.08489186
2002	331604228.7312478
2003	450538549.2088734
2004	536185487.9452351
2005	631697898.7396355
2006	659728358.4625084
2007	748906703.6434737
2008	961860898.124895
2009	1101191245.0240664
2010	1270669545.4766612
2011	1341345172.6435378
2012	1517787336.3311377
2013	1736088771.754157
2014	1732190087.3856394
2015	1381730102.3702004
2016	1266928596.3481803
2017	1432424985.8457687
2018	1450068512.6342096
2019	1386835865.6368182
2020	1338433098.2821586
2021	1490563681.2607346
2022	1315547633.9437325
2023	1484412962.818762