Year	current US$
1991	29999.999329447703
1992	9999.99977648258
1994	19999.9995529652
1995	59999.9986588955
1996	90000.0035762787
1997	59999.9986588955
1998	59999.9986588955
1999	9999.99977648258
2000	50000.0007450581
2001	50000.0007450581
2002	200000.00298023198
2003	109999.999403954
2004	170000.00178813902
2005	79999.9982118607
2006	159999.99642372102
2007	409999.99642372096
2008	2130000.1144409203
2009	1169999.95708466
2010	2059999.94277954
2011	790000.021457672
2012	1460000.03814697
2013	2759999.99046326
2014	4239999.771118159
2015	2519999.98092651
2016	1940000.0572204601
2017	1350000.02384186
2018	1289999.96185303
2019	1830000.04291534
2020	1559999.9427795399
2021	1750000
2022	1490000.0095367401