Quarterly Billions of US Dollars
1991-04-01 0.08107
1991-07-01 0.08763
1991-10-01 0.09354
1992-01-01 0.08696
1992-04-01 0.09490
1992-07-01 0.08913
1992-10-01 0.07560
1993-01-01 0.07517
1993-04-01 0.07544
1993-07-01 0.07553
1993-10-01 0.07406
1994-01-01 0.07411
1994-04-01 0.07701
1994-07-01 0.07898
1994-10-01 0.08813
1995-01-01 0.11065
1995-04-01 0.10970
1995-07-01 0.11400
1995-10-01 0.10250
1996-01-01 0.10127
1996-04-01 0.10243
1996-07-01 0.10311
1996-10-01 0.10990
1997-01-01 0.08646
1997-04-01 0.08817
1997-07-01 0.08066
1997-10-01 0.08269
1998-01-01 0.08400
1998-04-01 0.08314
1998-07-01 0.08477
1998-10-01 0.08318
1999-01-01 0.08807
1999-04-01 0.13788
1999-07-01 0.11932
1999-10-01 0.16870
2000-01-01 0.16252
2000-04-01 0.25013
2000-07-01 0.24258
2000-10-01 0.80021
2001-01-01 1.10192
2001-04-01 2.38021
2001-07-01 3.48976
2001-10-01 3.74352
2002-01-01 3.93240
2002-04-01 5.01212
2002-07-01 3.65685
2002-10-01 4.15969
2003-01-01 4.14819
2003-04-01 4.41623
2003-07-01 4.74186
2003-10-01 5.13147
2004-01-01 4.92422
2004-04-01 4.87074
2004-07-01 4.52404
2004-10-01 4.31750
2005-01-01 4.27043
2005-04-01 4.08386
2005-07-01 4.25291
2005-10-01 4.19330
2006-01-01 4.29708
2006-04-01 4.38679
2006-07-01 3.47138
2006-10-01 3.46840
2007-01-01 3.25116
2007-04-01 3.28048
2007-07-01 4.07814
2007-10-01 3.74798
2008-01-01 3.88038
2008-04-01 3.86670
2008-07-01 3.26761
2008-10-01 3.05388
2009-01-01 2.86689
2009-04-01 2.92830
2009-07-01 2.90578
2009-10-01 2.77802
2010-01-01 2.45299
2010-04-01 2.32910
2010-07-01 2.39971
2010-10-01 2.20904
2011-01-01 2.07142
2011-04-01 1.90530
2011-07-01 1.78306
2011-10-01 1.72981
2012-01-01 1.60160
2012-04-01 1.46364
2012-07-01 1.49431
2012-10-01 1.47260
2013-01-01 1.43569
2013-04-01 0.98759
2013-07-01 1.01647
2013-10-01 1.02649
2014-01-01 1.03054
2014-04-01 1.03572
2014-07-01 0.98775
2014-10-01 0.91282
2015-01-01 0.76884
2015-04-01 0.79411