Year	current US$
1981	1000000
1984	1000000
1985	1000000
1986	1000000
1987	2000000
1988	1000000
1989	1000000
1990	1000000
1991	2000000
1997	1000000
1998	959999.978542328
1999	939999.997615814
2000	29999.999329447703
2001	860000.014305115
2002	79999.9982118607
2003	230000.004172325
2004	29999.999329447703
2005	189999.99761581398
2006	59999.9986588955
2007	29999.999329447703
2008	9999.99977648258
2009	170000.00178813902
2010	129999.995231628
2011	50000.0007450581
2012	379999.99523162795
2013	230000.004172325
2014	180000.00715255702
2015	189999.99761581398
2016	2039999.96185303
2017	2059999.94277954
2018	1169999.95708466
2019	340000.00357627904
2020	70000.0002980232
2021	270000.010728836
2022	519999.980926514