Quarter	Billions of US Dollars
1993-07-01	10.0583
1993-10-01	11.8621
1994-01-01	17.6204
1994-04-01	4.8593
1994-07-01	4.3303
1994-10-01	2.7384
1995-01-01	2.2868
1995-04-01	2.4146
1995-07-01	6.6774
1995-10-01	4.0781
1996-01-01	13.0329
1996-04-01	13.1417
1996-07-01	8.9860
1996-10-01	10.0071
1997-01-01	8.1286
1997-04-01	12.7480
1997-07-01	9.4432
1997-10-01	5.3261
1998-01-01	11.7443
1998-04-01	11.4317
1998-07-01	9.5643
1998-10-01	8.1848
1999-01-01	7.3311
1999-04-01	14.5697
1999-07-01	7.4987
1999-10-01	10.1790
2000-01-01	10.3463
2000-04-01	10.0167
2000-07-01	14.5875
2000-10-01	12.5168
2001-01-01	14.2988
2001-04-01	13.7864
2001-07-01	9.8217
2001-10-01	21.0607
2002-01-01	5.9220
2002-04-01	16.8540
2002-07-01	4.7384
2002-10-01	6.1282
2003-01-01	16.1625
2003-04-01	13.0075
2003-07-01	25.2724
2003-10-01	21.9329
2004-01-01	15.7356
2004-04-01	16.2458
2004-07-01	7.1242
2004-10-01	8.2427
2005-01-01	14.7958
2005-04-01	5.2982
2005-07-01	5.9953
2005-10-01	11.4987
2006-01-01	16.1574
2006-04-01	9.5131
2006-07-01	8.3158
2006-10-01	13.8935
2007-01-01	15.1048
2007-04-01	26.0373
2007-07-01	18.4118
2007-10-01	19.6503
2008-01-01	13.1714
2008-04-01	22.7069
2008-07-01	8.4348
2008-10-01	11.7441
2009-01-01	4.9413
2009-04-01	19.5354
2009-07-01	14.7762
2009-10-01	16.9287
2010-01-01	11.7209
2010-04-01	12.5002
2010-07-01	19.1694
2010-10-01	15.0989
2011-01-01	15.0187
2011-04-01	16.9238
2011-07-01	9.2445
2011-10-01	8.1754
2012-01-01	16.5822
2012-04-01	7.8171
2012-07-01	16.8051
2012-10-01	16.5469
2013-01-01	20.5978
2013-04-01	19.5463
2013-07-01	19.9447
2013-10-01	46.0450
2014-01-01	19.9203
2014-04-01	37.3144
2014-07-01	24.4046
2014-10-01	20.8425
2015-01-01	17.2023
2015-04-01	23.8318