Quarter	Billions of US Dollars
1993-07-01	26.5889
1993-10-01	23.7544
1994-01-01	22.8516
1994-04-01	23.3655
1994-07-01	31.9157
1994-10-01	32.8231
1995-01-01	37.5999
1995-04-01	41.6263
1995-07-01	33.2436
1995-10-01	32.6943
1996-01-01	28.8197
1996-04-01	29.8095
1996-07-01	25.4682
1996-10-01	40.8851
1997-01-01	38.9689
1997-04-01	38.3926
1997-07-01	35.8174
1997-10-01	31.2316
1998-01-01	27.3624
1998-04-01	23.9487
1998-07-01	27.4456
1998-10-01	31.7707
1999-01-01	33.3813
1999-04-01	34.2694
1999-07-01	45.6127
1999-10-01	47.7228
2000-01-01	43.4160
2000-04-01	44.7763
2000-07-01	40.8559
2000-10-01	41.6449
2001-01-01	41.4954
2001-04-01	42.1091
2001-07-01	41.5934
2001-10-01	39.4123
2002-01-01	37.6403
2002-04-01	40.4904
2002-07-01	38.5619
2002-10-01	38.9599
2003-01-01	38.1897
2003-04-01	38.2323
2003-07-01	38.1359
2003-10-01	36.5963
2004-01-01	37.5926
2004-04-01	40.9927
2004-07-01	41.6372
2004-10-01	42.7826
2005-01-01	42.9421
2005-04-01	35.3406
2005-07-01	31.7759
2005-10-01	30.0008
2006-01-01	32.1567
2006-04-01	34.5314
2006-07-01	38.7809
2006-10-01	36.1990
2007-01-01	39.9125
2007-04-01	38.9993
2007-07-01	33.1381
2007-10-01	38.4022
2008-01-01	43.5386
2008-04-01	50.5854
2008-07-01	47.1408
2008-10-01	48.9666
2009-01-01	50.3982
2009-04-01	62.0093
2009-07-01	63.6732
2009-10-01	58.4273
2010-01-01	57.2184
2010-04-01	48.1788
2010-07-01	56.6524
2010-10-01	59.1805
2011-01-01	66.2784
2011-04-01	62.1618
2011-07-01	65.6873
2011-10-01	67.8043
2012-01-01	77.0224
2012-04-01	75.7567
2012-07-01	78.9615
2012-10-01	74.4237
2013-01-01	72.9351
2013-04-01	78.6763
2013-07-01	78.3818
2013-10-01	85.1064
2014-01-01	80.5336
2014-04-01	87.3249
2014-07-01	88.8762
2014-10-01	84.1718
2015-01-01	79.3370
2015-04-01	80.7899