Year	current US$
1970	9999.99977648258
1971	19999.9995529652
1972	90000.0035762787
1973	230000.004172325
1974	280000.001192093
1975	209999.993443489
1976	529999.971389771
1977	980000.019073486
1978	1820000.05245209
1979	2009999.9904632599
1980	1230000.01907349
1981	1440000.0572204601
1982	1210000.03814697
1983	1120000.00476837
1984	1769999.98092651
1985	10880000.1144409
1986	3940000.05722046
1987	6449999.80926514
1988	9859999.65667725
1989	10140000.3433228
1990	13590000.1525879
1991	11949999.8092651
1992	12680000.3051758
1993	14630000.1144409
1994	13079999.923706101
1995	17600000.3814697
1996	16030000.6866455
1997	14319999.6948242
1998	15180000.3051758
1999	6239999.771118159
2000	7420000.07629395
2001	15149999.6185303
2002	6199999.80926514
2003	6860000.1335144
2004	12180000.3051758
2005	3250000
2006	1029999.97138977
2007	1820000.05245209
2008	4699999.80926514
2009	3799999.95231628
2010	3440000.05722046
2011	219999.998807907
2012	29999.999329447703
2014	50000.0007450581
2016	990000.009536743
2017	1220000.02861023
2018	850000.023841858
2019	460000.00834465
2020	300000.011920929
2021	439999.997615814