Quarter	Billions of US Dollars
1993-07-01	4.3136
1993-10-01	4.2658
1994-01-01	5.5605
1994-04-01	7.1660
1994-07-01	7.6845
1994-10-01	8.0117
1995-01-01	6.6784
1995-04-01	8.2337
1995-07-01	8.1850
1995-10-01	9.0632
1996-01-01	13.0159
1996-04-01	12.6022
1996-07-01	12.9787
1996-10-01	12.4089
1997-01-01	13.8770
1997-04-01	12.8093
1997-07-01	15.6470
1997-10-01	15.7952
1998-01-01	15.9503
1998-04-01	14.5498
1998-07-01	16.2644
1998-10-01	15.5648
1999-01-01	19.7125
1999-04-01	21.8652
1999-07-01	20.9946
1999-10-01	17.7896
2000-01-01	26.2067
2000-04-01	26.4106
2000-07-01	23.2383
2000-10-01	19.0407
2001-01-01	28.2957
2001-04-01	22.8245
2001-07-01	21.9124
2001-10-01	20.5195
2002-01-01	22.8664
2002-04-01	23.1769
2002-07-01	24.8939
2002-10-01	25.2179
2003-01-01	30.1168
2003-04-01	23.2151
2003-07-01	20.9163
2003-10-01	23.6115
2004-01-01	25.5744
2004-04-01	23.6326
2004-07-01	22.8106
2004-10-01	26.3697
2005-01-01	40.3194
2005-04-01	35.7697
2005-07-01	41.8315
2005-10-01	32.9927
2006-01-01	42.2776
2006-04-01	43.5496
2006-07-01	42.8566
2006-10-01	43.6015
2007-01-01	61.2896
2007-04-01	62.2665
2007-07-01	45.7088
2007-10-01	46.4260
2008-01-01	27.0141
2008-04-01	28.0900
2008-07-01	25.6692
2008-10-01	12.9759
2009-01-01	10.7809
2009-04-01	15.5951
2009-07-01	18.7758
2009-10-01	18.6316
2010-01-01	21.9158
2010-04-01	16.0092
2010-07-01	15.6802
2010-10-01	15.9656
2011-01-01	21.2994
2011-04-01	24.4507
2011-07-01	25.0781
2011-10-01	27.2408
2012-01-01	34.2516
2012-04-01	30.2994
2012-07-01	27.7020
2012-10-01	24.0763
2013-01-01	37.1329
2013-04-01	39.7485
2013-07-01	38.4000
2013-10-01	44.9373
2014-01-01	48.7864
2014-04-01	49.2076
2014-07-01	45.5729
2014-10-01	39.4664
2015-01-01	39.8091
2015-04-01	33.6474