Quarter	Billions of US Dollars
1993-07-01	18.5242
1993-10-01	18.5319
1994-01-01	15.2997
1994-04-01	24.8241
1994-07-01	39.6959
1994-10-01	28.3518
1995-01-01	20.3383
1995-04-01	35.2504
1995-07-01	37.2607
1995-10-01	26.6833
1996-01-01	31.2850
1996-04-01	48.1998
1996-07-01	55.4770
1996-10-01	36.2416
1997-01-01	32.8696
1997-04-01	26.3114
1997-07-01	31.8067
1997-10-01	22.3768
1998-01-01	17.2115
1998-04-01	11.5759
1998-07-01	13.0952
1998-10-01	11.8167
1999-01-01	14.2537
1999-04-01	15.4549
1999-07-01	23.6561
1999-10-01	24.6446
2000-01-01	31.8200
2000-04-01	43.4970
2000-07-01	33.1478
2000-10-01	19.1929
2001-01-01	27.5897
2001-04-01	38.6431
2001-07-01	32.3730
2001-10-01	26.1772
2002-01-01	16.3167
2002-04-01	24.5597
2002-07-01	21.4483
2002-10-01	24.1878
2003-01-01	23.1524
2003-04-01	25.5725
2003-07-01	23.9717
2003-10-01	28.9233
2004-01-01	28.3345
2004-04-01	33.5360
2004-07-01	22.2306
2004-10-01	25.5740
2005-01-01	30.1245
2005-04-01	26.2042
2005-07-01	30.5281
2005-10-01	25.5522
2006-01-01	24.1215
2006-04-01	25.3309
2006-07-01	23.1779
2006-10-01	37.2406
2007-01-01	31.2662
2007-04-01	48.6386
2007-07-01	39.0945
2007-10-01	32.9399
2008-01-01	28.2593
2008-04-01	35.5719
2008-07-01	29.3549
2008-10-01	16.2659
2009-01-01	20.1857
2009-04-01	17.4841
2009-07-01	20.2621
2009-10-01	20.8055
2010-01-01	16.9908
2010-04-01	22.4640
2010-07-01	29.8396
2010-10-01	23.7059
2011-01-01	27.1158
2011-04-01	24.8806
2011-07-01	24.9043
2011-10-01	24.3187
2012-01-01	32.4824
2012-04-01	26.7630
2012-07-01	27.9515
2012-10-01	30.2817
2013-01-01	15.2790
2013-04-01	25.6596
2013-07-01	25.0124
2013-10-01	29.9078
2014-01-01	20.4082
2014-04-01	27.3561
2014-07-01	20.6766
2014-10-01	24.4719
2015-01-01	20.8867
2015-04-01	26.2663