Quarter	Billions of US Dollars
1993-07-01	0.01594
1993-10-01	0.01593
1994-01-01	0.01594
1994-04-01	0.01594
1994-07-01	0.01594
1994-10-01	0.01593
1995-01-01	0.01587
1995-04-01	0.01591
1995-07-01	0.01470
1995-10-01	0.01421
1996-01-01	0.01456
1996-04-01	0.01426
1996-07-01	0.01398
1996-10-01	0.01392
1997-01-01	0.01392
1997-04-01	0.01396
1997-07-01	0.01382
1997-10-01	0.01273
1998-01-01	0.01266
1998-04-01	0.01177
1998-07-01	0.01177
1998-10-01	0.01177
1999-01-01	0.01178
1999-04-01	0.01153
1999-07-01	0.01147
1999-10-01	0.01150
2000-01-01	0.01146
2000-04-01	0.01119
2000-07-01	0.01085
2000-10-01	0.01070
2001-01-01	0.01072
2001-04-01	0.01063
2001-07-01	0.01045
2001-10-01	0.01038
2002-01-01	0.01025
2002-04-01	0.01023
2002-07-01	0.01033
2002-10-01	0.01041
2003-01-01	0.01052
2003-04-01	0.01076
2003-07-01	0.01091
2003-10-01	0.01096
2004-01-01	0.12660
2004-04-01	0.11963
2004-07-01	0.11916
2004-10-01	0.12619
2005-01-01	0.12570
2005-04-01	0.12639
2005-07-01	0.12503
2005-10-01	0.12205
2006-01-01	0.13451
2006-04-01	0.13308
2006-07-01	0.13056
2006-10-01	0.15636
2007-01-01	0.18163
2007-04-01	0.33100
2007-07-01	0.54700
2007-10-01	0.55144
2008-01-01	0.56630
2008-04-01	0.61075
2008-07-01	0.57509
2008-10-01	0.56662
2009-01-01	0.53892
2009-04-01	0.57342
2009-07-01	0.63188
2009-10-01	0.60123
2010-01-01	0.62181
2010-04-01	0.59387
2010-07-01	0.83447
2010-10-01	1.42556
2011-01-01	1.53450
2011-04-01	1.96603
2011-07-01	2.74602
2011-10-01	2.52253
2012-01-01	2.98398
2012-04-01	2.76844
2012-07-01	2.74612
2012-10-01	2.76743
2013-01-01	2.74984
2013-04-01	2.39057
2013-07-01	2.46682
2013-10-01	2.43428
2014-01-01	2.84735
2014-04-01	3.15016
2014-07-01	3.74015
2014-10-01	4.90003
2015-01-01	6.59623
2015-04-01	6.88876