Year	US Dollars
1990	-4872470.54144
1991	-17252523.24367
1992	132000000
1993	92576940.28738
1994	152538159.39939
1995	40471336.94625
1996	60657286.33222
1997	-69159250.23617
1998	-91781434.89286
1999	-142246308.35778
2000	-125650000
2001	-134950000
2002	-170850000
2003	-134000000
2004	-298750000
2005	-305050000
2006	-193150000
2007	-172250000
2008	-343150000
2009	-140300000
2010	-410950000
2011	-499700000
2012	-398800000
2013	-483950000
2014	-457100000
2015	-391700000
2016	-444200000
2017	-321592524.94894