Quarter	Billions of US Dollars
1993-07-01	4.3629
1993-10-01	5.0318
1994-01-01	5.6050
1994-04-01	5.3046
1994-07-01	5.3808
1994-10-01	5.9523
1995-01-01	6.0267
1995-04-01	6.3071
1995-07-01	6.2449
1995-10-01	6.4297
1996-01-01	6.5572
1996-04-01	6.5371
1996-07-01	6.8259
1996-10-01	7.3356
1997-01-01	7.1785
1997-04-01	7.9922
1997-07-01	8.1152
1997-10-01	7.9811
1998-01-01	9.2913
1998-04-01	9.2205
1998-07-01	9.2994
1998-10-01	9.4789
1999-01-01	9.3354
1999-04-01	12.0882
1999-07-01	12.2192
1999-10-01	11.7739
2000-01-01	12.9193
2000-04-01	13.9914
2000-07-01	13.8173
2000-10-01	13.8787
2001-01-01	13.7719
2001-04-01	14.3026
2001-07-01	16.3979
2001-10-01	16.1508
2002-01-01	16.4826
2002-04-01	17.9911
2002-07-01	17.7127
2002-10-01	17.2948
2003-01-01	17.3848
2003-04-01	19.7118
2003-07-01	20.3737
2003-10-01	20.0803
2004-01-01	20.4686
2004-04-01	21.8335
2004-07-01	21.8915
2004-10-01	22.9067
2005-01-01	22.6263
2005-04-01	22.2695
2005-07-01	23.4618
2005-10-01	24.0016
2006-01-01	26.6586
2006-04-01	26.5325
2006-07-01	25.9809
2006-10-01	25.9683
2007-01-01	25.7586
2007-04-01	27.3856
2007-07-01	29.1324
2007-10-01	30.6730
2008-01-01	31.2083
2008-04-01	32.1753
2008-07-01	30.9627
2008-10-01	30.8204
2009-01-01	31.5059
2009-04-01	39.8117
2009-07-01	40.5044
2009-10-01	47.5817
2010-01-01	50.7449
2010-04-01	53.8808
2010-07-01	54.5516
2010-10-01	57.9222
2011-01-01	59.7345
2011-04-01	60.8909
2011-07-01	59.7581
2011-10-01	64.8834
2012-01-01	66.9591
2012-04-01	65.3312
2012-07-01	68.8857
2012-10-01	70.4732
2013-01-01	72.7839
2013-04-01	72.6201
2013-07-01	77.8041
2013-10-01	81.8188
2014-01-01	83.3804
2014-04-01	82.6369
2014-07-01	87.2081
2014-10-01	87.1389
2015-01-01	85.4214
2015-04-01	88.8302