Year	current US$
1988	49999.9988824129
1989	149999.99664723888
1990	69999.9984353781
1991	3470000.00067055
1992	2999999.986961482
1993	3690000.0199675546
1994	3549999.985843895
1995	3630000.013858078
1996	11239999.743178481
1997	10200000.12218952
1998	4680000.005289911
1999	4920000.026002527
2000	12220000.075176354
2001	13800000.03241005
2002	8760000.025853515
2003	11100000.189617274
2004	14889999.730512494
2005	19769999.90828335
2006	25829999.743029464
2007	53469999.60951507
2008	67779999.95276332
2009	54779999.645426884
2010	64369999.41617249
2011	63860000.42036174
2012	75099999.5656312
2013	95620001.98289758
2014	107040001.56931578
2015	112690001.34803353
2016	131269999.19489032
2017	168230002.10709867
2018	209059998.4619765
2019	203540000.59515235
2020	163100002.67252338
2021	315539996.9741699
2022	272099998.4480442