Year	current US$
1960	2108888518.9691854
1961	2284974575.5146155
1962	2539846743.295019
1963	2727220355.256841
1964	2937067307.6923075
1965	3216730769.230769
1966	3651490384.6153846
1967	4114951923.076923
1968	4500913461.538462
1969	4834711538.461538
1970	5758076923.076922
1971	5889375000
1972	6546962025.870253
1973	8328876222.452127
1974	10611970894.085787
1975	11903371018.852541
1976	13513363143.31354
1977	15430706403.786293
1978	18172901661.640873
1979	21099336419.88006
1980	25151842225.029037
1981	27195781497.195084
1982	28050206355.48099
1983	31223190352.60518
1984	32109021184.110287
1985	29466892365.655483
1986	31953752560.517494
1987	36088145316.70663
1988	41184590200.047615
1989	46975287492.67665
1990	56295055371.679436
1991	63063915354.57333
1992	72074439939.83023
1993	81149587961.6792
1994	92679461177.50046
1995	105886548824.70026
1996	115848862569.12892
1997	97744208437.52014
1998	73593136184.53775
1999	84561408185.44496
2000	85579798045.97664
2001	83578735097.98141
2002	92439137047.29109
2003	104398746166.56097
2004	119278218376.4948
2005	131563995442.08336
2006	150692348919.5378
2007	174789395767.98672
2008	198086073787.76422
2009	194509448729.37677
2010	231870554876.40247
2011	256245848669.86734
2012	276785591343.358
2013	289676025493.3555
2014	283151856107.1419
2015	274750897994.1641
2016	276437248541.869
2017	297678204513.27795
2018	329706855037.16376
2019	358715419153.41235
2020	354539657265.54376
2021	356732705502.65466
2022	358261703753.9859
2023	382703251798.328