Year	US Dollars
1995	-150968320.52808
1996	-316139978.26087
1997	-376349978.35498
1998	-434630000
1999	-179520001.52031
2000	-330529999.83914
2001	-350639995.95859
2002	-418669999.26324
2003	-668859997.41799
2004	-813079994.80869
2005	-1211097280.86606
2006	-1589676493.21077
2007	-2186862330.00272
2008	-3195998267.89838
2009	-1991866403.83092
2010	-2285122682.77105
2011	-2866308503.56942
2012	-2947305844.08078
2013	-2974703657.80024
2014	-2953275955.42763
2015	-2022833063.20908
2016	-1898706572.03947
2017	-2286161414.13049