Quarter	Billions of US Dollars
1989-07-01	0.0820
1989-10-01	0.0800
1990-04-01	0.0800
1990-07-01	0.7850
1990-10-01	0.1440
1991-01-01	0.2060
1991-04-01	0.3170
1991-07-01	0.1140
1991-10-01	0.1150
1992-01-01	0.2770
1992-04-01	0.3660
1992-07-01	0.7030
1993-01-01	0.6070
1993-04-01	0.5440
1993-07-01	0.7527
1993-10-01	1.3280
1994-01-01	1.6443
1994-04-01	1.9297
1994-07-01	1.7399
1994-10-01	1.7523
1995-01-01	2.1537
1995-04-01	1.9849
1995-07-01	2.4129
1995-10-01	2.9419
1996-01-01	2.3556
1996-04-01	2.2044
1996-07-01	1.5055
1996-10-01	0.9353
1997-01-01	0.8840
1997-04-01	0.9652
1997-07-01	1.2871
1997-10-01	1.9477
1998-01-01	2.9857
1998-04-01	1.9059
1998-07-01	2.6073
1998-10-01	2.9368
1999-01-01	2.7244
1999-04-01	2.7836
1999-07-01	4.1371
1999-10-01	5.3356
2000-01-01	4.9912
2000-04-01	5.9881
2000-07-01	6.7253
2000-10-01	11.5173
2001-01-01	10.6444
2001-04-01	10.4051
2001-07-01	9.3556
2001-10-01	10.9166
2002-01-01	11.3995
2002-04-01	13.8040
2002-07-01	14.5850
2002-10-01	14.6820
2003-01-01	13.7362
2003-04-01	13.3825
2003-07-01	13.3992
2003-10-01	15.4320
2004-01-01	18.7957
2004-04-01	20.6990
2004-07-01	19.6116
2004-10-01	18.3872
2005-01-01	17.6310
2005-04-01	17.2147
2005-07-01	19.2488
2005-10-01	17.3683
2006-01-01	20.6193
2006-04-01	21.5803
2006-07-01	21.9099
2006-10-01	26.7296
2007-01-01	26.2809
2007-04-01	29.1768
2007-07-01	33.7470
2007-10-01	46.6869
2008-01-01	47.9998
2008-04-01	65.9164
2008-07-01	44.7841
2008-10-01	41.4304
2009-01-01	40.3814
2009-04-01	36.8850
2009-07-01	31.1093
2009-10-01	17.0310
2010-01-01	19.4684
2010-04-01	22.6099
2010-07-01	34.1551
2010-10-01	46.9646
2011-01-01	48.5489
2011-04-01	51.9566
2011-07-01	44.0727
2011-10-01	35.3050
2012-01-01	47.1032
2012-04-01	50.2358
2012-07-01	47.3709
2012-10-01	45.8073
2013-01-01	48.3950
2013-04-01	51.3666
2013-07-01	48.7533
2013-10-01	56.6557
2014-01-01	52.2160
2014-04-01	57.9382
2014-07-01	57.9258
2014-10-01	57.1796
2015-01-01	52.9272
2015-04-01	53.8231