Year	current US$
1991	449999.988079071
1992	100000.00149011599
1993	100000.00149011599
1994	140000.000596046
1995	109999.999403954
1996	70000.0002980232
1997	730000.019073486
1998	569999.992847443
1999	50000.0007450581
2000	219999.998807907
2001	39999.9991059303
2002	2250000
2003	4260000.228881841
2004	319999.99284744303
2005	500000
2006	5610000.1335144
2007	9079999.92370605
2008	9069999.69482422
2009	14840000.1525879
2010	5599999.90463257
2011	3950000.04768372
2012	1659999.9666214
2013	6630000.11444092
2014	19200000.762939498
2015	10430000.3051758
2016	25219999.3133545
2017	35560001.373291
2018	45290000.9155273
2019	43529998.779296905
2020	17809999.4659424
2021	20329999.9237061
2022	26809999.4659424