Quarter	Billions of US Dollars
1993-07-01	3.5492
1993-10-01	3.0363
1994-01-01	2.7919
1994-04-01	2.6765
1994-07-01	2.7684
1994-10-01	2.6034
1995-01-01	2.6995
1995-04-01	2.8131
1995-07-01	2.5537
1995-10-01	2.4745
1996-01-01	2.4756
1996-04-01	2.0648
1996-07-01	2.0885
1996-10-01	1.9357
1997-01-01	2.0516
1997-04-01	2.0816
1997-07-01	1.7937
1997-10-01	3.3045
1998-01-01	3.1973
1998-04-01	3.1365
1998-07-01	3.1943
1998-10-01	3.2295
1999-01-01	3.4051
1999-04-01	3.3441
1999-07-01	3.1735
1999-10-01	3.8841
2000-01-01	3.6860
2000-04-01	4.4336
2000-07-01	4.6918
2000-10-01	5.2631
2001-01-01	6.0610
2001-04-01	6.8701
2001-07-01	6.7053
2001-10-01	6.8952
2002-01-01	6.9254
2002-04-01	7.7098
2002-07-01	7.2546
2002-10-01	8.2541
2003-01-01	8.5250
2003-04-01	8.7674
2003-07-01	11.9240
2003-10-01	12.5277
2004-01-01	12.2836
2004-04-01	13.2298
2004-07-01	13.7882
2004-10-01	15.1654
2005-01-01	13.8465
2005-04-01	13.8505
2005-07-01	13.8173
2005-10-01	13.4822
2006-01-01	13.4971
2006-04-01	16.2596
2006-07-01	16.1338
2006-10-01	15.6624
2007-01-01	15.5744
2007-04-01	15.6389
2007-07-01	16.2674
2007-10-01	16.2989
2008-01-01	16.5555
2008-04-01	15.7490
2008-07-01	14.4256
2008-10-01	13.6825
2009-01-01	17.3273
2009-04-01	21.3831
2009-07-01	22.6830
2009-10-01	21.9805
2010-01-01	21.0996
2010-04-01	19.4548
2010-07-01	22.9711
2010-10-01	21.6198
2011-01-01	22.7138
2011-04-01	23.4860
2011-07-01	21.8420
2011-10-01	20.9349
2012-01-01	25.6038
2012-04-01	24.5972
2012-07-01	27.5833
2012-10-01	30.9465
2013-01-01	30.6502
2013-04-01	31.3117
2013-07-01	32.9824
2013-10-01	32.7105
2014-01-01	30.6483
2014-04-01	28.2350
2014-07-01	26.3568
2014-10-01	24.6597
2015-01-01	23.3420
2015-04-01	23.8541