Quarter	Billions of US Dollars
1993-07-01	16.6037
1993-10-01	15.7775
1994-01-01	17.9287
1994-04-01	15.2240
1994-07-01	15.2069
1994-10-01	18.3741
1995-01-01	16.1520
1995-04-01	17.7343
1995-07-01	20.4935
1995-10-01	23.5082
1996-01-01	25.4544
1996-04-01	31.1921
1996-07-01	22.5990
1996-10-01	25.9287
1997-01-01	22.1541
1997-04-01	27.2752
1997-07-01	32.4551
1997-10-01	29.9850
1998-01-01	34.9325
1998-04-01	28.7578
1998-07-01	36.1367
1998-10-01	27.1672
1999-01-01	27.1935
1999-04-01	30.7499
1999-07-01	26.0506
1999-10-01	23.6320
2000-01-01	32.5804
2000-04-01	37.7433
2000-07-01	36.6120
2000-10-01	39.8416
2001-01-01	41.0877
2001-04-01	29.4768
2001-07-01	26.2313
2001-10-01	25.5482
2002-01-01	24.4464
2002-04-01	31.0812
2002-07-01	26.8506
2002-10-01	33.2113
2003-01-01	35.9392
2003-04-01	30.7594
2003-07-01	29.8168
2003-10-01	30.0828
2004-01-01	43.9625
2004-04-01	38.5775
2004-07-01	40.0995
2004-10-01	39.6971
2005-01-01	42.8868
2005-04-01	45.6919
2005-07-01	46.0878
2005-10-01	43.7764
2006-01-01	46.3004
2006-04-01	45.9864
2006-07-01	42.2885
2006-10-01	57.1184
2007-01-01	56.4697
2007-04-01	75.3508
2007-07-01	67.5678
2007-10-01	73.6541
2008-01-01	82.2930
2008-04-01	82.6759
2008-07-01	69.9365
2008-10-01	41.2761
2009-01-01	48.8787
2009-04-01	52.2616
2009-07-01	70.3254
2009-10-01	62.1111
2010-01-01	72.7924
2010-04-01	60.4945
2010-07-01	94.2144
2010-10-01	59.9275
2011-01-01	62.7363
2011-04-01	61.6218
2011-07-01	56.8832
2011-10-01	48.7278
2012-01-01	74.8126
2012-04-01	66.1039
2012-07-01	56.9910
2012-10-01	66.4471
2013-01-01	63.4581
2013-04-01	71.0046
2013-07-01	68.8452
2013-10-01	70.8904
2014-01-01	67.5044
2014-04-01	76.4992
2014-07-01	73.3550
2014-10-01	72.6964
2015-01-01	81.0564
2015-04-01	73.0548