Year	current US$
1987	600000.023841858
1989	13149999.6185303
1990	9789999.96185303
1991	27729999.5422363
1992	33990001.6784668
1993	12720000.2670288
1994	10970000.2670288
1995	7510000.228881841
1996	41840000.1525879
1997	30930000.3051758
1998	25229999.5422363
1999	35790000.9155273
2000	16209999.0844727
2001	10210000.038146999
2002	13350000.3814697
2003	10840000.1525879
2004	9270000.45776367
2005	16129999.160766602
2006	-66540000.9155273
2007	17620000.8392334
2008	13569999.6948242
2009	20290000.915527303
2010	5489999.771118159
2011	2710000.03814697
2012	5909999.84741211
2013	9999.99977648258
2014	1750000
2015	-4909999.84741211
2016	-5119999.88555908
2017	-3750000
2018	-5079999.92370605
2019	-3960000.03814697
2020	-2519999.98092651
2021	18389999.3896484
2022	-7599999.90463257