Quarter	Billions of US Dollars
1993-07-01	26.5182
1993-10-01	25.6898
1994-01-01	28.0196
1994-04-01	31.7054
1994-07-01	35.8375
1994-10-01	35.8242
1995-01-01	40.0446
1995-04-01	40.2923
1995-07-01	38.6115
1995-10-01	37.3531
1996-01-01	37.9992
1996-04-01	36.8121
1996-07-01	36.4390
1996-10-01	36.4003
1997-01-01	34.4940
1997-04-01	33.7492
1997-07-01	32.1858
1997-10-01	28.1429
1998-01-01	26.3299
1998-04-01	27.2980
1998-07-01	28.5567
1998-10-01	27.4426
1999-01-01	25.4792
1999-04-01	24.7973
1999-07-01	25.8454
1999-10-01	24.6897
2000-01-01	22.0829
2000-04-01	21.8629
2000-07-01	19.8122
2000-10-01	18.8285
2001-01-01	16.7449
2001-04-01	20.3408
2001-07-01	21.1318
2001-10-01	19.9252
2002-01-01	20.6264
2002-04-01	21.3264
2002-07-01	20.5377
2002-10-01	21.2585
2003-01-01	28.4869
2003-04-01	33.0499
2003-07-01	32.9445
2003-10-01	33.6799
2004-01-01	34.1656
2004-04-01	32.8620
2004-07-01	31.3345
2004-10-01	33.8494
2005-01-01	32.4351
2005-04-01	29.5028
2005-07-01	29.3831
2005-10-01	28.8635
2006-01-01	28.4795
2006-04-01	29.6870
2006-07-01	21.4581
2006-10-01	22.5423
2007-01-01	20.6258
2007-04-01	20.1664
2007-07-01	14.1283
2007-10-01	14.0826
2008-01-01	14.9093
2008-04-01	14.6753
2008-07-01	6.3277
2008-10-01	5.7406
2009-01-01	7.9470
2009-04-01	3.7115
2009-07-01	3.8580
2009-10-01	3.8516
2010-01-01	5.3877
2010-04-01	6.2191
2010-07-01	6.4979
2010-10-01	8.4703
2011-01-01	19.6239
2011-04-01	17.5287
2011-07-01	17.6700
2011-10-01	17.3722
2012-01-01	18.8937
2012-04-01	21.3657
2012-07-01	19.7684
2012-10-01	19.8257
2013-01-01	19.8741
2013-04-01	18.9541
2013-07-01	19.8037
2013-10-01	22.9864
2014-01-01	22.6758
2014-04-01	25.2814
2014-07-01	25.8224
2014-10-01	25.7821
2015-01-01	24.5782
2015-04-01	28.0375