Quarter	Billions of US Dollars
1993-07-01	1.4075
1993-10-01	1.5230
1994-01-01	2.0917
1994-04-01	2.2209
1994-07-01	2.7108
1994-10-01	3.0453
1995-01-01	1.8457
1995-04-01	1.5505
1995-07-01	2.0584
1995-10-01	2.9265
1996-01-01	3.6176
1996-04-01	3.9065
1996-07-01	2.8248
1996-10-01	3.9537
1997-01-01	3.9680
1997-04-01	4.6641
1997-07-01	4.8689
1997-10-01	5.5795
1998-01-01	5.5800
1998-04-01	7.6817
1998-07-01	8.1198
1998-10-01	8.4423
1999-01-01	9.9549
1999-04-01	8.3527
1999-07-01	9.0296
1999-10-01	8.2797
2000-01-01	7.8788
2000-04-01	7.6796
2000-07-01	7.8764
2000-10-01	9.0830
2001-01-01	9.9483
2001-04-01	13.4124
2001-07-01	13.1812
2001-10-01	10.8554
2002-01-01	11.1917
2002-04-01	10.7151
2002-07-01	14.2600
2002-10-01	16.5092
2003-01-01	19.3977
2003-04-01	19.7259
2003-07-01	16.3716
2003-10-01	17.1611
2004-01-01	14.3440
2004-04-01	14.7745
2004-07-01	15.3852
2004-10-01	20.0482
2005-01-01	24.3588
2005-04-01	24.9868
2005-07-01	25.6520
2005-10-01	24.3308
2006-01-01	26.2828
2006-04-01	29.2183
2006-07-01	29.1312
2006-10-01	32.1772
2007-01-01	39.2521
2007-04-01	40.9980
2007-07-01	38.6860
2007-10-01	39.4384
2008-01-01	37.3147
2008-04-01	42.0567
2008-07-01	41.6139
2008-10-01	39.7829
2009-01-01	26.2996
2009-04-01	25.7951
2009-07-01	29.3026
2009-10-01	33.4329
2010-01-01	36.3024
2010-04-01	33.1569
2010-07-01	37.1620
2010-10-01	34.5241
2011-01-01	32.5365
2011-04-01	35.5059
2011-07-01	33.9424
2011-10-01	33.1595
2012-01-01	34.8096
2012-04-01	36.0353
2012-07-01	40.0935
2012-10-01	50.1229
2013-01-01	52.3374
2013-04-01	55.9805
2013-07-01	59.2284
2013-10-01	62.5553
2014-01-01	61.7169
2014-04-01	63.6239
2014-07-01	66.9815
2014-10-01	62.0200
2015-01-01	55.0588
2015-04-01	47.5804