Year	current US$
1960	91000000
1961	95010000
1962	147500000
1963	143500000
1964	130510000
1965	174510000
1966	194020000
1967	196020000
1968	228160000
1969	283160000
1970	345530000
1971	265943108.504363
1972	608928939.936952
1973	448872067.192077
1974	377048386.488135
1975	488829997.015792
1976	425227626.085706
1977	416029736.222766
1978	423160791.124262
1979	434460236.373464
1980	725838456.509501
1981	666224340.921415
1982	485317948.781968
1983	822826938.283858
1984	241869151.894127
1985	314560193.321617
1986	370024463.934045
1987	640659833.449191
1988	780103470.549448
1989	959774121.481326
1990	1008333157.87227
1991	898759430.116294
1992	991616032.39078
1993	1019720966.70976
1994	1685218535.33399
1995	2819869227.10403
1996	941556932.714946
1997	4799414924.4435
1998	4356853270.71678
1999	6353095479.60889
2000	6082806131.77161
2001	6045276919.15025
2002	5904239858.41019
2003	6495520282.58033
2004	13141251628.1943
2005	18579129695.2026
2006	23056918431.1639
2007	29588572400.564
2008	30583543856.9594
2009	35237419576.4755
2010	38175057749.0238
2011	42595171246.0381
2012	43995470405.0297
2013	44863675893.5691
2014	44267418380.4854
2015	41619505756.7249
2016	42565588000.8564
2017	45499292863.2361
2018	46478274116.6735
2019	48919726656.867
2020	47387358995.5568
2021	50262146617.2517
2022	53247530156.2543
2023	54176079020.3129