Quarter	Billions of US Dollars
1993-07-01	4.66703
1993-10-01	4.60700
1994-01-01	4.66550
1994-04-01	4.52967
1994-07-01	4.64907
1994-10-01	5.01033
1995-01-01	5.21127
1995-04-01	5.19476
1995-07-01	5.26782
1995-10-01	5.29503
1996-01-01	5.69484
1996-04-01	5.63814
1996-07-01	5.63562
1996-10-01	5.69100
1997-01-01	5.43143
1997-04-01	5.42603
1997-07-01	5.71688
1997-10-01	5.64887
1998-01-01	5.61149
1998-04-01	5.61448
1998-07-01	5.54148
1998-10-01	5.29131
1999-01-01	5.44613
1999-04-01	5.39445
1999-07-01	5.29531
1999-10-01	5.21897
2000-01-01	5.17006
2000-04-01	5.16267
2000-07-01	4.93419
2000-10-01	4.73021
2001-01-01	4.84237
2001-04-01	4.80711
2001-07-01	4.54086
2001-10-01	4.31201
2002-01-01	4.30073
2002-04-01	4.41864
2002-07-01	4.07619
2002-10-01	3.93090
2003-01-01	3.94532
2003-04-01	3.98061
2003-07-01	3.57012
2003-10-01	3.40370
2004-01-01	3.39123
2004-04-01	3.38711
2004-07-01	3.14407
2004-10-01	2.77293
2005-01-01	2.72448
2005-04-01	3.01663
2005-07-01	2.76156
2005-10-01	2.68403
2006-01-01	2.26631
2006-04-01	2.77597
2006-07-01	2.76561
2006-10-01	2.38996
2007-01-01	2.40991
2007-04-01	2.43444
2007-07-01	2.06515
2007-10-01	2.12854
2008-01-01	2.76469
2008-04-01	2.75518
2008-07-01	2.53969
2008-10-01	2.48876
2009-01-01	2.09479
2009-04-01	2.72047
2009-07-01	2.82078
2009-10-01	2.53692
2010-01-01	2.41263
2010-04-01	2.28784
2010-07-01	2.49736
2010-10-01	2.47550
2011-01-01	2.40007
2011-04-01	2.44917
2011-07-01	2.36197
2011-10-01	2.28141
2012-01-01	2.94951
2012-04-01	3.75441
2012-07-01	3.81152
2012-10-01	3.77806
2013-01-01	3.68218
2013-04-01	4.69540
2013-07-01	4.75124
2013-10-01	4.75077
2014-01-01	4.76171
2014-04-01	5.75269
2014-07-01	5.58017
2014-10-01	5.48151
2015-01-01	5.30838
2015-04-01	6.35486