Year	current US$
1991	2000000
1992	379999.99523162795
1993	540000.021457672
1994	409999.99642372096
1995	889999.985694885
1996	589999.973773956
1997	1259999.9904632599
1998	2170000.07629395
1999	6340000.15258789
2000	3549999.95231628
2001	3009999.99046326
2002	5840000.15258789
2003	5989999.771118159
2004	8000000
2005	6510000.228881841
2006	5679999.82833862
2007	5889999.8664856
2008	4079999.92370605
2009	1039999.96185303
2010	2509999.99046326
2011	2759999.99046326
2012	1549999.95231628
2013	1720000.02861023
2014	1350000.02384186
2015	1799999.95231628
2016	569999.992847443
2017	230000.004172325
2018	810000.002384186
2019	1360000.01430511
2020	1399999.97615814
2021	119999.997317791
2022	219999.998807907