Quarterly Billions of US Dollars
1987-01-01 0.03320
1987-04-01 0.03289
1987-07-01 0.03270
1987-10-01 0.03912
1988-01-01 0.03654
1988-04-01 0.03312
1988-07-01 0.03146
1988-10-01 0.07324
1989-01-01 0.07012
1989-04-01 0.06989
1989-07-01 0.07090
1989-10-01 0.07233
1990-01-01 0.07341
1990-04-01 0.07527
1990-07-01 0.07849
1990-10-01 0.07860
1991-01-01 0.07425
1991-04-01 0.07205
1991-07-01 0.07449
1991-10-01 0.07689
1992-01-01 0.07337
1992-04-01 0.07630
1992-07-01 0.08067
1992-10-01 0.07434
1993-01-01 0.07344
1993-04-01 0.07312
1993-07-01 0.04000
1993-10-01 0.04000
1994-01-01 0.04000
1994-04-01 0.04000
1994-07-01 0.04000
1994-10-01 0.04187
1995-01-01 0.04080
1995-04-01 0.04000
1995-07-01 0.04000
1995-10-01 0.04000
1996-01-01 0.06700
1996-04-01 0.15033
1996-07-01 0.15763
1996-10-01 0.19450
1997-01-01 0.22150
1997-04-01 0.27450
1997-07-01 0.26175
1997-10-01 0.36841
1998-01-01 0.42009
1998-04-01 0.39099
1998-07-01 0.38091
1998-10-01 0.35083
1999-01-01 0.41370
1999-04-01 0.26623
1999-07-01 0.28544
1999-10-01 0.48256
2000-01-01 0.44007
2000-04-01 0.39974
2000-07-01 0.34523
2000-10-01 0.21273
2001-01-01 0.20198
2001-04-01 0.23580
2001-07-01 0.22693
2001-10-01 0.13511
2002-01-01 0.12702
2002-04-01 0.12019
2002-07-01 0.09853
2002-10-01 0.06255
2003-01-01 0.11721
2003-04-01 0.12220
2003-07-01 0.13359
2003-10-01 0.22444
2004-01-01 0.39826
2004-04-01 0.47070
2004-07-01 0.72378
2004-10-01 0.81148
2005-01-01 0.88095
2005-04-01 1.06235
2005-07-01 1.47560
2005-10-01 2.15495
2006-01-01 2.30944
2006-04-01 2.21613
2006-07-01 2.27510
2006-10-01 2.17413
2007-01-01 2.24749
2007-04-01 2.43020
2007-07-01 2.87800
2007-10-01 3.51564
2008-01-01 3.96142
2008-04-01 4.19501
2008-07-01 4.34089
2008-10-01 4.01556
2009-01-01 3.43037
2009-04-01 5.04034
2009-07-01 4.94451
2009-10-01 4.52610
2010-01-01 4.58703
2010-04-01 4.61502
2010-07-01 4.46241
2010-10-01 3.70301
2011-01-01 3.60722
2011-04-01 3.87271
2011-07-01 3.88599
2011-10-01 3.86664
2012-01-01 4.15639
2012-04-01 4.93104
2012-07-01 4.46191
2012-10-01 4.70279
2013-01-01 4.88106
2013-04-01 4.23831
2013-07-01 4.18138
2013-10-01 4.17301
2014-01-01 3.95199
2014-04-01 3.14962
2014-07-01 4.43311
2014-10-01 4.53336
2015-01-01 4.94260
2015-04-01 4.74822