Year	US Dollars
1992	-330440325.83894
1993	-2070231566.16697
1994	-2136190377.44039
1995	-932060412.50451
1996	-154812540.24147
1997	-559875393.5377
1998	-999578136.31178
1999	395627353.09813
2000	1372843339.58725
2001	-234603961.67807
2002	-12417862.30617
2003	1655989137.28023
2004	3707426030.0658
2005	4927609873.57014
2006	8503033561.90132
2007	6777505789.27528
2008	26685607219.3331
2009	9121811538.83443
2010	21244932306.335
2011	38162140023.7892
2012	30150627210.99839
2013	27985505083.8366
2014	30359355371.9285
2015	7345458383.07514
2016	4634764145.42903