Year	current US$
1990	559999.994933605
1991	519999.995827675
1992	720000.009983778
1993	1060000.00238419
1994	1369999.9563396
1995	1730000.03583729
1996	5210000.00834465
1997	5309999.97630715
1998	9479999.98927116
1999	6579999.97586012
2000	9920000.21412969
2001	12270000.033080598
2002	12450000.038370501
2003	20940000.3347546
2004	24029999.954626
2005	23220000.5184859
2006	23020000.5508959
2007	30400000.2667308
2008	39210000.8018315
2009	26729999.8030066
2010	29310000.680386998
2011	32120001.105591696
2012	34380001.0830164
2013	38170000.2029538
2014	36660000.3968924
2015	34570000.153034896
2016	28540000.2375245
2017	35340000.2345443
2018	44099999.692291
2019	39109999.9696016
2020	35900000.199675605
2021	30060000.6170571
2022	34440000.00506645