Quarter	Billions of US Dollars
1993-07-01	0.9807
1993-10-01	0.9659
1994-01-01	1.5440
1994-04-01	1.5059
1994-07-01	1.9343
1994-10-01	2.1261
1995-01-01	1.6981
1995-04-01	2.2609
1995-07-01	3.4448
1995-10-01	3.4894
1996-01-01	3.5085
1996-04-01	3.1300
1996-07-01	1.4254
1996-10-01	1.4295
1997-01-01	1.8672
1997-04-01	2.4067
1997-07-01	2.2329
1997-10-01	2.2908
1998-01-01	1.9216
1998-04-01	2.2483
1998-07-01	2.9461
1998-10-01	3.2534
1999-01-01	3.1448
1999-04-01	2.7128
1999-07-01	3.1662
1999-10-01	2.9257
2000-01-01	1.9367
2000-04-01	1.7707
2000-07-01	0.6606
2000-10-01	1.2480
2001-01-01	1.7657
2001-04-01	1.9630
2001-07-01	2.3139
2001-10-01	1.6655
2002-01-01	1.4918
2002-04-01	1.8226
2002-07-01	2.1989
2002-10-01	2.3200
2003-01-01	3.2638
2003-04-01	2.9038
2003-07-01	2.2440
2003-10-01	2.2413
2004-01-01	1.2894
2004-04-01	0.9078
2004-07-01	1.7352
2004-10-01	2.1945
2005-01-01	1.5347
2005-04-01	2.0131
2005-07-01	1.3417
2005-10-01	3.1017
2006-01-01	3.2723
2006-04-01	4.0220
2006-07-01	4.4861
2006-10-01	2.5868
2007-01-01	3.0533
2007-04-01	2.0570
2007-07-01	2.1323
2007-10-01	2.7586
2008-01-01	3.2549
2008-04-01	3.9388
2008-07-01	5.7753
2008-10-01	6.4465
2009-01-01	10.2117
2009-04-01	12.4417
2009-07-01	12.5879
2009-10-01	11.3830
2010-01-01	8.3357
2010-04-01	6.0283
2010-07-01	8.6744
2010-10-01	11.9828
2011-01-01	11.7552
2011-04-01	11.4358
2011-07-01	7.9452
2011-10-01	4.6250
2012-01-01	3.3614
2012-04-01	2.9937
2012-07-01	3.5166
2012-10-01	6.1822
2013-01-01	6.0946
2013-04-01	6.7460
2013-07-01	7.8905
2013-10-01	5.3548
2014-01-01	5.4008
2014-04-01	7.4601
2014-07-01	11.5541
2014-10-01	13.1160
2015-01-01	14.5597
2015-04-01	15.4041