Quarter Billions of US Dollars 2005-01-01 0.09434 2005-07-01 -0.06432 2006-07-01 -0.03465 2007-04-01 0.00990 2007-07-01 0.05941 2007-10-01 0.02970 2008-01-01 0.12871 2008-04-01 -0.00504 2008-10-01 -0.08857 2009-01-01 -0.03896 2009-04-01 -0.03592 2010-04-01 0.00884 2010-07-01 0.00742 2010-10-01 0.06801 2011-04-01 -0.00878 2011-07-01 -0.00735 2011-10-01 -0.06757