Year	current US$
1972	219999.99321997157
1973	270000.010728836
1974	449999.988079071
1975	500000
1976	379999.99523162795
1977	500000
1978	410000.00573694654
1979	279999.99001622223
1980	100000.00149011599
1981	50000.0007450581
1982	29999.999329447703
1983	19999.9995529652
1984	70000.00029802327
1985	189999.9938905236
1986	129999.99709427358
1987	89999.99985098839
1988	149999.99850988388
1989	89999.99985098848
1990	179999.99970197657
1991	189999.99575316912
1992	169999.99806284893
1993	359999.9956786633
1994	299999.99329447723
1995	539999.991655349
1996	520000.003278255
1997	899999.9985098832
1998	859999.9845027917
1999	870000.0140815966
2000	729999.996721744
2001	619999.9935925008
2002	730000.0078976152
2003	1099999.9977648258
2004	1229999.996721744
2005	899999.9761581416
2006	559999.994933605
2007	640000.0080466265
2008	670000.0241398813
2009	259999.9941885472
2010	729999.9874085188
2011	1410000.0187754629
2012	429999.9941140418
2013	520000.0070035454
2014	729999.989271163
2015	1399999.991059303
2016	1300000.0212341547
2017	1619999.9991804343
2018	1290000.0158697367
2019	599999.9959021808
2020	820000.0151991849
2021	649999.9873340136
2022	590000.0017136338