Year	current US$
1970	30717803.4205646
1971	31637456.501107242
1972	36052205.22052205
1973	43413688.744034454
1974	33971154.91702862
1975	27205399.977686044
1976	25462688.074320912
1977	28293483.785707023
1978	36142920.797593854
1979	32731017.96407186
1980	60082401.19313945
1981	69569271.75843695
1982	46615208.333333336
1983	28290380.224362154
1984	35246764.13073843
1985	43394033.6749634
1986	94331876.77518025
1987	122838717.69383699
1988	170300376.2813027
1989	187224069.96797243
1990	231453734.97230855
1991	262594023.90438247
1992	283515412.5723516
1993	238859854.01459855
1994	257865273.2023174
1995	407187500
1996	367309433.0633635
1997	389614058.5029474
1998	368673886.61730576
1999	434239130.4347826
2000	441544361.5252117
2001	461283530.8723304
2002	513215146.2633641
2003	610384554.7884022
2004	755391136.2061349
2005	842823670.7364507
2006	883906675.5539631
2007	1010334158.7101464
2008	1090134531.7363439
2009	1086069706.9895484
2010	1072194890.3911183
2011	1227268974.081797
2012	1139441207.704108
2013	1228653389.0788836
2014	1374877869.5543146
2015	1229218524.6216447
2016	1312125285.9623034
2017	1477217013.0833952
2018	1734893505.0975883
2019	1674882921.8388045
2020	1385472951.4479055
2021	1576418055.9222536
2022	1384789805.7608063
2023	1564318761.5672657