Year	current US$
1960	257999996.10334602
1961	324280001.074076
1962	443910003.870726
1963	408049997.255206
1964	536209994.04043007
1965	621120013.237
1966	672080002.54631
1967	589650007.247925
1968	579139998.167753
1969	549090001.558885
1970	564930008.009076
1971	689019996.305928
1972	870050004.079938
1973	1403269994.07448
1974	2440239998.0425797
1975	3089709964.39457
1976	2980950042.5756
1977	3619199930.04203
1978	4244110077.5003395
1979	6194619843.24455
1980	6823119987.96463
1981	6418350004.672999
1982	6165660003.66211
1983	5655349918.84232
1984	5550420000.79155
1985	6608629909.05717
1986	7484640001.17779
1987	8615420018.43452
1988	8729099972.4865
1989	8544569960.594181
1990	11018149891.376501
1991	10920959927.5589
1992	10873490011.4536
1993	10147249857.9025
1994	10692239925.3845
1995	10855080089.569101
1996	8354480022.43042
1997	8107180000.305181
1998	7589099933.62427
1999	7442769981.38428
2000	7285340011.59668
2001	8709389968.87207
2002	12312190124.5117
2003	17470459819.7937
2004	17508370113.3728
2005	18965360233.3069
2006	21101069986.3434
2007	24894269996.6431
2008	27971409889.2212
2009	29356330078.125
2010	30829849525.4517
2011	33670829994.2017
2012	32379279983.5205
2013	34682150024.4141
2014	35185730224.6094
2015	35532170120.2393
2016	40097240333.5571
2017	44759849304.199196
2018	49979780303.9551
2019	47381699821.4722
2020	54715689773.5596
2021	52794799957.2754