Quarter	Billions of US Dollars
1993-07-01	6.4037
1993-10-01	5.4663
1994-01-01	7.7268
1994-04-01	4.7922
1994-07-01	6.2844
1994-10-01	6.2426
1995-01-01	6.2118
1995-04-01	5.9311
1995-07-01	5.5233
1995-10-01	3.8642
1996-01-01	4.7534
1996-04-01	10.9645
1996-07-01	5.9002
1996-10-01	5.0599
1997-01-01	3.9546
1997-04-01	4.5772
1997-07-01	4.4085
1997-10-01	4.7383
1998-01-01	4.4026
1998-04-01	6.8132
1998-07-01	5.3835
1998-10-01	4.2041
1999-01-01	5.1779
1999-04-01	7.8795
1999-07-01	9.8193
1999-10-01	3.9628
2000-01-01	8.5972
2000-04-01	6.7836
2000-07-01	7.6661
2000-10-01	9.7285
2001-01-01	9.2158
2001-04-01	8.8249
2001-07-01	7.7656
2001-10-01	7.9471
2002-01-01	7.4661
2002-04-01	6.8987
2002-07-01	8.0998
2002-10-01	7.6429
2003-01-01	7.6572
2003-04-01	5.3421
2003-07-01	5.6867
2003-10-01	6.0189
2004-01-01	9.8019
2004-04-01	7.9399
2004-07-01	9.1164
2004-10-01	11.3933
2005-01-01	12.4885
2005-04-01	17.9249
2005-07-01	14.7973
2005-10-01	13.6543
2006-01-01	15.1827
2006-04-01	14.3686
2006-07-01	14.4397
2006-10-01	15.1974
2007-01-01	18.0738
2007-04-01	21.5845
2007-07-01	18.3779
2007-10-01	24.8685
2008-01-01	26.3005
2008-04-01	32.2747
2008-07-01	42.3356
2008-10-01	22.7670
2009-01-01	28.1548
2009-04-01	32.8298
2009-07-01	34.2544
2009-10-01	31.0269
2010-01-01	39.8623
2010-04-01	35.9796
2010-07-01	33.8244
2010-10-01	38.3369
2011-01-01	29.3237
2011-04-01	33.0422
2011-07-01	44.1175
2011-10-01	43.6952
2012-01-01	44.8915
2012-04-01	40.7414
2012-07-01	37.3694
2012-10-01	33.7603
2013-01-01	43.2163
2013-04-01	29.6241
2013-07-01	35.7753
2013-10-01	26.1940
2014-01-01	28.1321
2014-04-01	35.3671
2014-07-01	34.4466
2014-10-01	34.9181
2015-01-01	21.8233
2015-04-01	22.3358