Year	current USD
1978	343271609.064777
1979	504712881.877131
1980	497359449.16104
1981	618891637.14152
1982	668493883.2809681
1983	778628250.551507
1984	1066247743.83314
1985	1146467009.82686
1986	1156494418.0760698
1987	1487398890.30015
1988	1469382980.14573
1989	1948559395.68153
1990	1751153151.9486601
1991	1031247788.04428
1992	794138821.161656
1993	1774397876.82742
1994	594991178.6944469
1995	233843714.8893
1996	159741933.46819898
1997	456780475.02619594
1998	170278292.568682
1999	1066588789.2328501
2000	583621333.598924
2001	404299139.99066097
2002	438686245.411232
2003	670021164.4324939
2004	817533582.152083
2005	1365055398.69044
2006	1970309115.18376
2007	2032432883.4343
2008	3163591147.40902
2009	3311193245.27722
2010	3500794836.4464903
2011	3639496373.5446
2012	4144634851.4685597
2013	6090751702.00884
2014	6846249313.34052
2015	3608299114.61674
2016	2764054937.15976
2017	3062872913.9838
2018	1983613748.00089
2019	1470938717.28754
2020	993594404.6258789
2021	981451011.871799
2022	1622763731.95097