Quarter	Billions of US Dollars
1993-10-01	0.04513
1994-01-01	0.04535
1994-04-01	0.04645
1994-07-01	0.04808
1994-10-01	0.05119
1995-01-01	0.04810
1995-04-01	0.04888
1995-07-01	0.04796
1995-10-01	0.04768
1996-01-01	0.04772
1996-04-01	0.04770
1996-07-01	0.05751
1996-10-01	0.05744
1997-01-01	0.05727
1997-04-01	0.29146
1997-07-01	0.22702
1997-10-01	0.19237
1998-01-01	0.20738
1998-04-01	0.18270
1998-07-01	0.17553
1998-10-01	0.19688
1999-01-01	0.19837
1999-04-01	0.20227
1999-07-01	0.18073
1999-10-01	0.18431
2000-01-01	0.18094
2000-04-01	0.17217
2000-07-01	0.16053
2000-10-01	0.14861
2001-01-01	0.15047
2001-04-01	0.14189
2001-07-01	0.14468
2001-10-01	0.14454
2002-01-01	0.14526
2002-04-01	0.02479
2002-07-01	0.02383
2002-10-01	0.02354
2003-01-01	0.02335
2003-04-01	0.02327
2003-07-01	0.02275
2003-10-01	0.02249
2004-01-01	0.02708
2004-04-01	0.02716
2004-07-01	0.02709
2004-10-01	0.02712
2005-01-01	0.02785
2005-04-01	0.02729
2005-07-01	0.02722
2005-10-01	0.05974
2006-01-01	0.06667
2006-04-01	0.06448
2006-07-01	0.06931
2006-10-01	0.07185
2007-01-01	0.07394
2007-04-01	0.18580
2007-07-01	0.23161
2007-10-01	0.32556
2008-01-01	0.37343
2008-04-01	0.32507
2008-07-01	0.30656
2008-10-01	0.29508
2009-01-01	0.27928
2009-04-01	0.28089
2009-07-01	0.28732
2009-10-01	0.29480
2010-01-01	0.30057
2010-04-01	0.30223
2010-07-01	1.41378
2010-10-01	2.13060
2011-01-01	3.41388
2011-04-01	3.40664
2011-07-01	3.41847
2011-10-01	3.65412
2012-01-01	3.73298
2012-04-01	3.67803
2012-07-01	3.71342
2012-10-01	4.45033
2013-01-01	4.42909
2013-04-01	3.66264
2013-07-01	4.18661
2013-10-01	4.08245
2014-01-01	4.03643
2014-04-01	4.15196
2014-07-01	4.04245
2014-10-01	4.07407
2015-01-01	4.05780
2015-04-01	4.02442