Year	current US$
1975	-629999.995231628
1988	9999.99977648258
1989	150000.005960464
1990	1230000.01907349
1991	100000.00149011599
1992	90000.0035762787
1993	90000.0035762787
1994	490000.009536743
1995	50000.0007450581
1996	79999.9982118607
1997	59999.9986588955
1998	90000.0035762787
1999	500000
2000	159999.99642372102
2001	150000.005960464
2002	540000.021457672
2003	469999.998807907
2004	1919999.95708466
2005	400000.00596046395
2006	230000.004172325
2007	360000.01430511504
2008	19999.9995529652
2012	239999.994635582
2013	150000.005960464
2014	209999.993443489
2015	119999.997317791
2016	180000.00715255702
2017	239999.994635582
2018	300000.011920929
2019	200000.00298023198
2020	180000.00715255702
2021	759999.990463257
2022	219999.998807907