Year	current US$
1990	349999.99403953605
1991	1039999.96185303
1992	330000.013113022
1993	560000.002384186
1994	720000.028610229
1995	1110000.01430511
1996	790000.021457672
1997	1860000.01430511
1998	2220000.02861023
1999	3480000.01907349
2000	6230000.01907349
2001	4880000.11444092
2002	5260000.228881841
2003	7650000.09536743
2004	7400000.09536743
2005	11010000.2288818
2006	10500000
2007	14210000.038146999
2008	13390000.3433228
2009	14779999.7329712
2010	17899999.6185303
2011	16920000.0762939
2012	19059999.4659424
2013	20469999.3133545
2014	31069999.6948242
2015	21500000
2016	19569999.6948242
2017	25719999.3133545
2018	24270000.4577637
2019	26139999.3896484
2020	30500000
2021	33150001.5258789
2022	24270000.4577637