Year	current US$
1974	66571205.384
1975	316663083.09299994
1976	411576879.948
1977	707827702.2599999
1978	999102012.163
1979	1479642627.341
1980	1921705599.1649997
1981	1472711851.2896998
1982	1380184979.0437996
1983	1363155740.2931998
1984	1224842869.5574
1985	1213010759.1354003
1986	1388437270.5623
1987	1356902228.4803
1988	1334993139.626
1989	1106903164.2856
1990	1243457420.0809348
1991	1225759502.7067428
1992	1320336791.5798223
1993	1223395341.525055
1994	932485683.2265975
1995	874126820.9852731
1996	962138137.9965765
1997	897535152.398951
1998	920778220.3958766
1999	862537309.2285069
2000	726586260.6369497
2001	742874610.2681115
2002	939073061.1292776
2003	1149173590.6036348
2004	1167618464.048327
2005	1396177600.7831507
2006	1370475667.8039644
2007	1616423128.5616817
2008	1798809757.7329357
2009	1941660245.0051134
2010	2197706934.1148543
2011	2320543684.586774
2012	2801869516.4241347
2013	2951823432.9435315
2014	2963446305.4778376
2015	6049161328.619725
2016	4979107918.444682
2017	3922327096.764261
2018	3928023729.209012
2019	3631313133.5080223
2020	3781300376.098046
2021	3514928770.206274
2022	3819973365.5888004