Year	current US$
1960	38050000
1961	40050000
1962	44100000
1963	47550000
1964	53200000
1965	57500000
1966	62950000
1967	68100000
1968	75500000
1969	82350000
1970	90500000
1971	98000000
1972	110499502.75223762
1973	130499934.75003262
1974	147000000
1975	159500000
1976	181500000
1977	221500000
1978	520694772.15
1979	643609129.1999999
1980	659990018.6
1981	627988061.1999999
1982	729136981.9
1983	790730546
1984	943611475.1
1985	996801817.75
1986	1061267907.25
1987	1230353774.8000002
1988	1104673682.918455
1989	1092736531
1990	1060479514.7616731
1991	905685970.6208738
1992	957509030.7208208
1993	911164822.516536
1994	949057820.378651
1995	1061843013.5557873
1996	1055207407.0945946
1997	1104236501.9011407
1998	1240013899.5568686
1999	1342965365.8536587
2000	1475820593.8092232
2001	1502575625.168599
2002	1563181197.024431
2003	1627478059.059183
2004	1699114072.2882967
2005	1862025445.3747706
2006	2071059498.260088
2007	2219025038.2374268
2008	2471672563.7304497
2009	2425994040.78306
2010	2619282247.778525
2011	3045174582.925899
2012	3276985988.7961645
2013	3199391130.2662764
2014	3408908438.198254
2015	3680508357.7597356
2016	3723868314.883745
2017	3962467201.1221147
2018	4065694928.210705
2019	4114149766.332461
2020	3790877516.6554585
2021	4563649683.938084
2022	5097147032.611538
2023	5271321875.319974