Quarter	Billions of US Dollars
1993-07-01	4.7471
1993-10-01	4.9045
1994-01-01	4.5942
1994-04-01	3.8177
1994-07-01	3.5205
1994-10-01	3.7610
1995-01-01	4.4284
1995-04-01	2.7192
1995-07-01	2.9648
1995-10-01	3.7586
1996-01-01	2.9883
1996-04-01	8.3837
1996-07-01	6.4636
1996-10-01	4.7229
1997-01-01	5.9151
1997-04-01	4.4848
1997-07-01	5.7022
1997-10-01	6.1944
1998-01-01	4.3210
1998-04-01	3.5426
1998-07-01	7.3223
1998-10-01	7.8133
1999-01-01	5.8268
1999-04-01	4.7755
1999-07-01	5.5180
1999-10-01	5.1358
2000-01-01	5.2846
2000-04-01	6.2698
2000-07-01	6.9140
2000-10-01	6.5142
2001-01-01	6.6757
2001-04-01	8.4122
2001-07-01	8.0227
2001-10-01	4.9638
2002-01-01	7.0555
2002-04-01	9.6435
2002-07-01	9.7946
2002-10-01	11.6071
2003-01-01	11.1910
2003-04-01	11.3581
2003-07-01	12.4437
2003-10-01	9.5491
2004-01-01	15.6321
2004-04-01	18.2638
2004-07-01	26.0569
2004-10-01	25.2864
2005-01-01	29.5351
2005-04-01	28.6179
2005-07-01	32.0873
2005-10-01	19.1607
2006-01-01	26.0656
2006-04-01	25.2210
2006-07-01	19.8008
2006-10-01	27.3943
2007-01-01	27.5377
2007-04-01	37.8139
2007-07-01	28.0983
2007-10-01	43.7751
2008-01-01	55.7847
2008-04-01	67.4213
2008-07-01	54.0138
2008-10-01	50.1669
2009-01-01	56.2382
2009-04-01	56.1586
2009-07-01	43.1583
2009-10-01	43.3512
2010-01-01	54.3997
2010-04-01	59.3964
2010-07-01	56.2346
2010-10-01	54.9918
2011-01-01	79.0434
2011-04-01	59.7114
2011-07-01	55.9486
2011-10-01	54.9132
2012-01-01	66.8562
2012-04-01	47.0370
2012-07-01	47.8193
2012-10-01	38.8763
2013-01-01	49.1243
2013-04-01	50.2170
2013-07-01	45.8119
2013-10-01	48.7351
2014-01-01	53.7910
2014-04-01	52.2070
2014-07-01	52.4214
2014-10-01	47.5127
2015-01-01	49.4366
2015-04-01	38.7624