Year	current US$
1970	53883451.4163035
1971	57672542.5722885
1972	63639579.6490795
1973	80457240.541663
1974	113636623.152477
1975	127886447.870873
1976	145732766.797151
1977	176419440.052651
1978	163784954.35451
1979	119704398.541116
1980	199222715.17095
1981	224207011.414678
1982	225346241.956572
1983	246859843.991279
1984	287938171.456007
1985	261348640.19501
1986	270296711.040186
1987	304538160.022492
1988	205917548.877107
1989	78877927.4655896
1990	78246449.7779099
1991	115262030.695411
1992	137743195.424539
1993	134540391.271204
1994	290019974.822154
1995	334156119.751633
1996	336840628.752697
1997	346470135.019011
1998	364826554.732172
1999	394127773.473489
2000	389044977.080255
2001	427840671.252145
2002	418562258.224271
2003	432842561.415707
2004	469952642.744511
2005	485202623.99437
2006	522972760.815437
2007	575440108.036989
2008	645554760.932731
2009	622241977.666433
2010	701060581.317418
2011	771236293.222845
2012	841294151.555953
2013	888816736.828494
2014	956562185.652182
2015	1081039560.09524
2016	1122398192.48405
2017	1154540919.78445
2018	1077040160.85663
2019	1015367486.85952
2020	1065750121.66716
2021	1209640476.97684