Year	current US$
1978	9999.99977648258
1987	19999.9995529652
1994	119999.997317791
1995	129999.995231628
2007	180000.00715255702
2008	920000.016689301
2009	109999.999403954
2011	289999.99165535
2012	189999.99761581398
2013	159999.99642372102
2017	460000.00834465
2018	340000.00357627904
2019	200000.00298023198
2021	140000.000596046
2022	219999.998807907