Year	current USD
1968	326483888.46200633
1969	393983669.7842758
1970	503516298.4086112
1971	561652137.9738817
1972	607309530.3086798
1973	715390790.939939
1974	937839065.3100604
1975	1138972593.9412973
1976	1217248454.7991588
1977	1535833757.396881
1978	2121241401.546079
1979	2459925044.9196777
1980	2759253745.793991
1981	2664409279.1225305
1982	2248099753.3100824
1983	2169334435.538551
1984	2422006409.2682233
1985	2358199368.3775196
1986	2465152768.1124535
1987	2475871974.7846
1988	2779612119.7862415
1989	2428788364.9769216
1990	4757702034.012003
1991	3522538191.3219175
1992	2145332027.1766276
1993	2547853573.469414
1994	1621355697.5707989
1995	1473607055.1555912
1996	1700180261.4080184
1997	1814603452.2574964
1998	2288182785.5240555
1999	2888721569.1442766
2000	2824352742.4244733
2001	2328184433.509573
2002	2383024756.2112665
2003	2847382654.808325
2004	3942772480.095197
2005	4035054537.152472
2006	4873641800.003907
2007	6274638786.062128
2008	8177322404.03539
2009	7872733068.977047
2010	5209927343.401981
2011	5454930072.546158
2012	5521182566.813817
2013	6958302124.335741
2014	7581934839.275479
2015	8782537805.47676
2016	9935443263.334442
2017	11719984402.362316
2018	9039884606.34879
2019	9092764602.490446
2020	9966166839.760572
2021	10254359414.460962
2022	10487531047.022943