Year	current US$
1989	70000.0002980232
1990	23159999.8474121
1991	21489999.7711182
1992	9489999.77111816
1993	55430000.3051758
1994	45340000.1525879
1995	44389999.3896484
1996	42409999.8474121
1997	42119998.9318848
1998	2109999.89509583
1999	13840000.1525879
2000	66120002.746582
2001	41349998.4741211
2002	7849999.90463257
2003	9680000.30517578
2004	10890000.3433228
2005	33720001.220703095
2006	3920000.07629395
2007	-16209999.0844727
2008	9449999.80926514
2009	3410000.08583069
2010	-10590000.1525879
2011	-16059999.465942401
2012	-9380000.11444092
2013	-13329999.923706101
2014	-2500000
2015	-14930000.3051758
2016	-14859999.6566772
2017	-14880000.1144409
2018	-14130000.1144409
2019	-14850000.3814697
2020	-14869999.8855591
2021	-14930000.3051758
2022	-14720000.2670288