Quarter Billions of US Dollars 1996-10-01 0.20000 1998-07-01 0.16871 1998-10-01 0.20023 1999-01-01 0.00024 1999-04-01 0.00025 1999-07-01 -0.06265 1999-10-01 0.16073 2000-01-01 -0.00982 2000-04-01 0.13838 2000-07-01 0.08596 2001-07-01 -0.07963 2002-04-01 0.14312 2004-10-01 -0.25881 2005-10-01 -0.20000 2006-10-01 -0.20000 2007-04-01 -0.26963 2013-10-01 2.52786 2014-04-01 1.05010