Year	current US$
1991	111500000
1992	4900000.09536743
1993	209999.993443489
1994	7210000.03814697
1995	10449999.8092651
1996	13270000.4577637
1997	6860000.1335144
1998	11289999.961853001
1999	13029999.7329712
2000	10270000.4577637
2001	8210000.038146971
2002	13069999.6948242
2003	16370000.839233398
2004	-560000.002384186
2005	14100000.3814697
2006	11300000.1907349
2007	49580001.8310547
2008	18399999.6185303
2009	17520000.4577637
2010	13569999.6948242
2011	5880000.11444092
2012	13979999.5422363
2013	-25319999.6948242
2014	12869999.8855591
2015	12380000.1144409
2016	13859999.6566772
2017	16680000.3051758
2018	16440000.534057599
2019	12970000.2670288
2020	20190000.5340576
2021	3829999.92370605
2022	13220000.2670288