Year	current US$
1972	19999.99955296516
1973	29999.99932944774
1974	49999.99888241298
1975	29999.99932944774
1977	19999.9995529652
1978	19999.9995529652
1979	19999.9995529652
1980	50000.0007450581
1981	9999.99977648258
1983	19999.9995529652
1984	9999.99977648258
1985	9999.99977648258
1988	29999.999329447783
1989	19999.99955296516
1990	80000.0000745058
1991	39999.999105930365
1992	39999.999105930285
1993	19999.9995529652
1994	139999.9968707561
1995	149999.9947845932
1996	449999.99739229615
1997	520000.00141560985
1998	200000.0011175872
1999	689999.9994784585
2000	569999.9965727326
2001	349999.994039536
2002	179999.9959766866
2003	430000.0034272668
2004	510000.003501773
2005	1629999.9989569187
2006	269999.99955296493
2007	309999.9949336052
2008	249999.99627470935
2009	230000.00044703443
2010	219999.99508261651
2011	1540000.0009685766
2012	1410000.011324882
2013	220000.00625848732
2014	2410000.0429898547
2015	709999.9878555536
2016	1300000.0007450576
2017	2479999.9482929744
2018	900000.0040978198
2019	999999.990686774