Quarter	Billions of US Dollars
1993-07-01	18.1956
1993-10-01	27.9698
1994-01-01	28.3493
1994-04-01	28.2645
1994-07-01	28.9951
1994-10-01	30.3569
1995-01-01	30.4581
1995-04-01	32.4203
1995-07-01	34.0261
1995-10-01	35.8920
1996-01-01	38.1000
1996-04-01	40.8972
1996-07-01	41.9536
1996-10-01	44.8514
1997-01-01	48.2460
1997-04-01	49.1529
1997-07-01	52.7559
1997-10-01	53.1447
1998-01-01	55.2681
1998-04-01	59.1157
1998-07-01	62.9719
1998-10-01	57.5896
1999-01-01	57.8256
1999-04-01	60.7288
1999-07-01	63.2844
1999-10-01	65.4532
2000-01-01	69.0237
2000-04-01	72.5579
2000-07-01	72.7820
2000-10-01	73.6595
2001-01-01	73.5928
2001-04-01	78.1592
2001-07-01	79.4880
2001-10-01	78.5019
2002-01-01	76.9861
2002-04-01	80.3189
2002-07-01	79.9896
2002-10-01	81.6811
2003-01-01	82.3562
2003-04-01	83.7416
2003-07-01	84.3933
2003-10-01	86.9729
2004-01-01	86.0617
2004-04-01	83.5553
2004-07-01	83.4003
2004-10-01	86.6816
2005-01-01	84.9329
2005-04-01	52.9377
2005-07-01	52.7556
2005-10-01	51.9125
2006-01-01	52.4976
2006-04-01	53.2243
2006-07-01	52.9248
2006-10-01	53.9938
2007-01-01	53.8149
2007-04-01	54.1077
2007-07-01	54.8773
2007-10-01	55.5756
2008-01-01	56.1406
2008-04-01	55.4492
2008-07-01	52.7417
2008-10-01	45.7149
2009-01-01	44.2880
2009-04-01	44.9089
2009-07-01	45.7736
2009-10-01	45.1199
2010-01-01	43.2916
2010-04-01	42.5485
2010-07-01	45.0166
2010-10-01	45.0930
2011-01-01	47.1979
2011-04-01	47.2699
2011-07-01	45.1076
2011-10-01	44.2818
2012-01-01	44.8172
2012-04-01	43.5949
2012-07-01	44.2456
2012-10-01	44.5503
2013-01-01	43.9014
2013-04-01	44.3229
2013-07-01	44.9983
2013-10-01	45.4268
2014-01-01	45.4098
2014-04-01	45.1636
2014-07-01	43.3592
2014-10-01	42.0870
2015-01-01	40.9587
2015-04-01	40.9235