Year	US Dollars, Monthly Level
1999-01-01	-174530000000.00000
2000-01-01	-344970000000.00000
2001-01-01	-276910000000.00000
2002-01-01	-267899999999.99997
2003-01-01	-345360000000.00000
2004-01-01	-453800000000.00000
2005-01-01	-655440000000.00000
2006-01-01	-765420000000.00000
2007-01-01	-784050000000.00000
2008-01-01	-970660000000.00000
2009-01-01	-433730000000.00000
2010-01-01	-584440000000.00000
2011-01-01	-811250000000.00000
2012-01-01	-750970000000.00000
2013-01-01	-632860000000.00000
2014-01-01	-651560000000.00000
2015-01-01	-549900000000.00000
2016-01-01	-450890000000.00000