Year	constant 2021 US$
1970	2076970036.864281
1971	2301690054.7742867
1972	2230599970.310924
1973	1636929944.1464245
1974	1326000052.809718
1975	1204579999.7523427
1976	1127140019.4168086
1977	1093069988.7275693
1978	764149991.512298
1979	654139999.1996589
1980	566260017.3950198
1981	1064660003.2038989
1982	358250002.3841859
1983	356230005.38349175
1984	214669994.4734574
1985	290679996.2520604
1986	194010000.9441376
1987	194819996.31226063
1988	190169999.83787492
1989	398130007.5240432
1990	783589984.614402
1991	2844040020.847695
1992	1975429989.9730837
1993	1634769996.1215267
1994	2265930035.263299
1995	2415599988.8181715
1996	2902720024.704937
1997	2751140001.714236
1998	3810240027.129653
1999	4409629994.511602
2000	4012409922.8084145
2001	4237319963.987919
2002	3119830052.614213
2003	2767020014.6734724
2004	3303289974.093439
2005	1404820010.8408933
2006	1536179990.2319913
2007	1409710041.9998174
2008	1484769977.5695798
2009	1435049991.1308293
2010	1598899991.0354621
2011	1498630008.6975095
2012	1492429995.4175959
2013	1441969987.1540077
2014	2228319962.501531
2015	2637189959.7644815
2016	5013090082.168581
2017	2176800012.588498
2018	2441190019.6075444
2019	2336510030.746463
2020	4156470045.089727
2021	2527100042.343146