Quarter	Billions of US Dollars
1993-07-01	0.1478
1993-10-01	0.1382
1994-01-01	0.8762
1994-04-01	0.9789
1994-07-01	0.8234
1994-10-01	1.5322
1995-01-01	1.8081
1995-04-01	2.1847
1995-07-01	2.4328
1995-10-01	1.7080
1996-01-01	3.8137
1996-04-01	4.4669
1996-07-01	4.6105
1996-10-01	3.9455
1997-01-01	5.2519
1997-04-01	2.8838
1997-07-01	4.3483
1997-10-01	4.8936
1998-01-01	5.3640
1998-04-01	4.1932
1998-07-01	5.0874
1998-10-01	2.2211
1999-01-01	2.0129
1999-04-01	1.8790
1999-07-01	1.2644
1999-10-01	2.3131
2000-01-01	3.1102
2000-04-01	3.5414
2000-07-01	2.0202
2000-10-01	3.5087
2001-01-01	5.6102
2001-04-01	17.3930
2001-07-01	16.3298
2001-10-01	8.4923
2002-01-01	4.0174
2002-04-01	6.7900
2002-07-01	8.3272
2002-10-01	5.1916
2003-01-01	5.4490
2003-04-01	6.0824
2003-07-01	4.0814
2003-10-01	3.9901
2004-01-01	3.5538
2004-04-01	3.2388
2004-07-01	3.1989
2004-10-01	3.8963
2005-01-01	3.5517
2005-04-01	3.6456
2005-07-01	3.1209
2005-10-01	3.1956
2006-01-01	3.3882
2006-04-01	4.3697
2006-07-01	4.2942
2006-10-01	5.8618
2007-01-01	11.2475
2007-04-01	11.1689
2007-07-01	10.0128
2007-10-01	15.3451
2008-01-01	15.8811
2008-04-01	18.1226
2008-07-01	13.9555
2008-10-01	2.6921
2009-01-01	5.9499
2009-04-01	7.2005
2009-07-01	3.4230
2009-10-01	3.7488
2010-01-01	4.4699
2010-04-01	2.1592
2010-07-01	5.8465
2010-10-01	3.9028
2011-01-01	3.3522
2011-04-01	3.9361
2011-07-01	2.3141
2011-10-01	2.0179
2012-01-01	1.3669
2012-04-01	2.5407
2012-07-01	1.0452
2012-10-01	0.9796
2013-01-01	0.2595
2013-04-01	0.9033
2013-07-01	0.5780
2013-10-01	0.7265
2014-01-01	0.5767
2014-04-01	1.1495
2014-07-01	1.0017
2014-10-01	0.5385
2015-01-01	0.3703
2015-04-01	0.1556