Quarter	Billions of US Dollars
1993-07-01	3.1372
1993-10-01	3.0768
1994-01-01	4.1814
1994-04-01	5.5575
1994-07-01	6.4291
1994-10-01	5.9323
1995-01-01	5.6019
1995-04-01	6.9668
1995-07-01	6.4620
1995-10-01	6.7917
1996-01-01	9.5658
1996-04-01	9.0282
1996-07-01	9.5804
1996-10-01	9.0171
1997-01-01	9.1618
1997-04-01	7.7831
1997-07-01	10.4445
1997-10-01	9.8430
1998-01-01	10.5496
1998-04-01	9.6638
1998-07-01	9.8791
1998-10-01	10.6512
1999-01-01	11.5260
1999-04-01	14.7079
1999-07-01	14.8284
1999-10-01	11.8034
2000-01-01	20.6552
2000-04-01	20.7045
2000-07-01	19.0464
2000-10-01	15.6433
2001-01-01	25.9067
2001-04-01	19.0545
2001-07-01	18.8180
2001-10-01	17.8538
2002-01-01	19.4607
2002-04-01	19.1215
2002-07-01	22.3404
2002-10-01	22.3832
2003-01-01	27.4972
2003-04-01	20.5575
2003-07-01	19.4417
2003-10-01	21.7605
2004-01-01	23.1516
2004-04-01	22.0076
2004-07-01	19.9988
2004-10-01	22.8973
2005-01-01	33.4984
2005-04-01	31.8653
2005-07-01	38.1772
2005-10-01	30.3652
2006-01-01	37.6905
2006-04-01	39.6863
2006-07-01	38.4851
2006-10-01	40.0007
2007-01-01	55.9412
2007-04-01	55.3525
2007-07-01	42.1735
2007-10-01	42.3131
2008-01-01	22.1498
2008-04-01	22.9657
2008-07-01	20.3877
2008-10-01	9.7418
2009-01-01	6.5961
2009-04-01	11.5379
2009-07-01	15.2273
2009-10-01	14.9054
2010-01-01	15.9010
2010-04-01	12.0296
2010-07-01	10.4160
2010-10-01	9.6644
2011-01-01	9.5513
2011-04-01	10.1166
2011-07-01	9.2509
2011-10-01	9.5005
2012-01-01	10.0140
2012-04-01	11.7052
2012-07-01	10.9210
2012-10-01	11.2431
2013-01-01	13.4025
2013-04-01	14.1067
2013-07-01	11.5678
2013-10-01	11.2714
2014-01-01	11.5385
2014-04-01	10.0822
2014-07-01	9.5729
2014-10-01	9.2896
2015-01-01	6.7375
2015-04-01	5.4070