Quarter	Billions of US Dollars
1993-07-01	0.2462
1993-10-01	0.2350
1994-01-01	0.1316
1994-04-01	0.1500
1994-07-01	0.1523
1994-10-01	0.1808
1995-01-01	0.1891
1995-04-01	0.1913
1995-07-01	0.4824
1995-10-01	0.6286
1996-01-01	2.5653
1996-04-01	0.7339
1996-07-01	3.9704
1996-10-01	3.9529
1997-01-01	4.4463
1997-04-01	4.5812
1997-07-01	5.3746
1997-10-01	5.7717
1998-01-01	5.7682
1998-04-01	7.0324
1998-07-01	7.3950
1998-10-01	6.8803
1999-01-01	7.8876
1999-04-01	7.8683
1999-07-01	7.8863
1999-10-01	8.4811
2000-01-01	8.4442
2000-04-01	9.0144
2000-07-01	9.5767
2000-10-01	10.3324
2001-01-01	11.0002
2001-04-01	11.8694
2001-07-01	12.9936
2001-10-01	13.0075
2002-01-01	13.6504
2002-04-01	14.5009
2002-07-01	15.2838
2002-10-01	18.6883
2003-01-01	20.0894
2003-04-01	20.7496
2003-07-01	20.4519
2003-10-01	20.5562
2004-01-01	19.8210
2004-04-01	21.0792
2004-07-01	24.4299
2004-10-01	27.2633
2005-01-01	26.0906
2005-04-01	26.1657
2005-07-01	26.1753
2005-10-01	27.9988
2006-01-01	30.2678
2006-04-01	32.6347
2006-07-01	32.1602
2006-10-01	32.0801
2007-01-01	31.8388
2007-04-01	32.3053
2007-07-01	32.6948
2007-10-01	32.6092
2008-01-01	32.5452
2008-04-01	32.4073
2008-07-01	32.1105
2008-10-01	32.0834
2009-01-01	34.0107
2009-04-01	34.5025
2009-07-01	34.1763
2009-10-01	33.7626
2010-01-01	35.1013
2010-04-01	35.6910
2010-07-01	36.4598
2010-10-01	37.4655
2011-01-01	38.1146
2011-04-01	38.1418
2011-07-01	39.2718
2011-10-01	42.9565
2012-01-01	42.2357
2012-04-01	45.6435
2012-07-01	46.8335
2012-10-01	50.7642
2013-01-01	49.4650
2013-04-01	52.7659
2013-07-01	55.1700
2013-10-01	55.6640
2014-01-01	55.9737
2014-04-01	55.7192
2014-07-01	56.8407
2014-10-01	56.7571
2015-01-01	58.3569
2015-04-01	58.1369