Year	current US$
1988	29999.999329447703
1990	59999.9986588955
1991	29999.999329447703
1992	9999.99977648258
1995	39999.9991059303
1996	29999.999329447703
1997	70000.0002980232
1998	79999.9982118607
1999	70000.0002980232
2000	109999.999403954
2001	219999.998807907
2002	150000.005960464
2003	239999.994635582
2004	340000.00357627904
2005	289999.99165535
2006	200000.00298023198
2007	159999.99642372102
2008	430000.00715255697
2009	189999.99761581398
2010	119999.997317791
2011	140000.000596046
2012	189999.99761581398
2013	140000.000596046
2014	129999.995231628
2015	119999.997317791
2016	140000.000596046
2017	150000.005960464
2018	219999.998807907
2019	90000.0035762787
2020	129999.995231628
2021	70000.0002980232
2022	29999.999329447703