Quarter	Billions of US Dollars
1993-07-01	40.7044
1993-10-01	40.6583
1994-01-01	40.0628
1994-04-01	40.0476
1994-07-01	40.8125
1994-10-01	38.6927
1995-01-01	43.1466
1995-04-01	42.2265
1995-07-01	40.6495
1995-10-01	41.3234
1996-01-01	39.5154
1996-04-01	37.3845
1996-07-01	35.8583
1996-10-01	31.0273
1997-01-01	27.6440
1997-04-01	25.1707
1997-07-01	23.5826
1997-10-01	20.3809
1998-01-01	16.5308
1998-04-01	17.1448
1998-07-01	18.4856
1998-10-01	17.4371
1999-01-01	15.0478
1999-04-01	14.1714
1999-07-01	13.8439
1999-10-01	11.7674
2000-01-01	10.1599
2000-04-01	9.5892
2000-07-01	7.7122
2000-10-01	7.4669
2001-01-01	6.0850
2001-04-01	5.5203
2001-07-01	5.1221
2001-10-01	4.5106
2002-01-01	4.8522
2002-04-01	6.3556
2002-07-01	5.8844
2002-10-01	6.1907
2003-01-01	6.2387
2003-04-01	6.0859
2003-07-01	7.6240
2003-10-01	8.9060
2004-01-01	8.4026
2004-04-01	8.2458
2004-07-01	8.0933
2004-10-01	8.6935
2005-01-01	7.5910
2005-04-01	6.2828
2005-07-01	5.9731
2005-10-01	5.6371
2006-01-01	5.3142
2006-04-01	5.9525
2006-07-01	5.8354
2006-10-01	7.1259
2007-01-01	7.3206
2007-04-01	8.2641
2007-07-01	7.2964
2007-10-01	7.9269
2008-01-01	7.9697
2008-04-01	7.7833
2008-07-01	7.1898
2008-10-01	7.0557
2009-01-01	6.5927
2009-04-01	6.8547
2009-07-01	6.7008
2009-10-01	7.7998
2010-01-01	6.7437
2010-04-01	6.1502
2010-07-01	6.7951
2010-10-01	4.8430
2011-01-01	4.9743
2011-04-01	5.0712
2011-07-01	4.6943
2011-10-01	3.6956
2012-01-01	2.7909
2012-04-01	2.2288
2012-07-01	6.3414
2012-10-01	6.0903
2013-01-01	1.8550
2013-04-01	1.2390
2013-07-01	1.2883
2013-10-01	1.3081
2014-01-01	1.3192
2014-04-01	0.2765
2014-07-01	0.2531
2014-10-01	0.2452
2015-01-01	0.2493
2015-04-01	0.2606