Quarter	Billions of US Dollars
1993-07-01	9.2577
1993-10-01	9.6276
1994-01-01	11.2852
1994-04-01	11.5554
1994-07-01	12.5705
1994-10-01	14.2996
1995-01-01	12.6688
1995-04-01	13.3961
1995-07-01	16.2872
1995-10-01	16.9183
1996-01-01	15.9984
1996-04-01	16.7802
1996-07-01	14.2458
1996-10-01	18.8064
1997-01-01	18.2053
1997-04-01	19.6246
1997-07-01	20.6472
1997-10-01	17.8334
1998-01-01	21.3846
1998-04-01	22.5347
1998-07-01	21.5450
1998-10-01	21.6842
1999-01-01	18.5936
1999-04-01	18.4448
1999-07-01	21.1454
1999-10-01	20.1593
2000-01-01	19.5954
2000-04-01	20.2594
2000-07-01	18.5423
2000-10-01	18.2780
2001-01-01	19.3407
2001-04-01	19.3724
2001-07-01	17.5810
2001-10-01	18.5524
2002-01-01	14.7280
2002-04-01	13.5613
2002-07-01	11.7297
2002-10-01	12.3635
2003-01-01	16.2547
2003-04-01	16.8041
2003-07-01	18.2170
2003-10-01	16.9859
2004-01-01	14.5503
2004-04-01	13.6102
2004-07-01	14.7362
2004-10-01	17.4311
2005-01-01	17.3110
2005-04-01	18.8341
2005-07-01	16.7451
2005-10-01	17.6288
2006-01-01	20.4811
2006-04-01	20.7145
2006-07-01	26.1788
2006-10-01	28.2718
2007-01-01	33.3562
2007-04-01	36.2535
2007-07-01	35.4860
2007-10-01	36.8927
2008-01-01	40.3929
2008-04-01	43.6157
2008-07-01	47.9734
2008-10-01	45.9595
2009-01-01	50.7512
2009-04-01	57.7847
2009-07-01	59.3316
2009-10-01	54.1171
2010-01-01	45.5173
2010-04-01	43.6623
2010-07-01	48.7814
2010-10-01	48.0617
2011-01-01	56.3968
2011-04-01	59.3780
2011-07-01	53.0117
2011-10-01	55.7536
2012-01-01	51.8710
2012-04-01	42.5482
2012-07-01	45.7390
2012-10-01	46.2686
2013-01-01	51.3117
2013-04-01	58.5648
2013-07-01	67.3525
2013-10-01	64.0382
2014-01-01	66.9341
2014-04-01	64.9383
2014-07-01	70.9506
2014-10-01	81.6318
2015-01-01	89.3874
2015-04-01	98.7162