Quarter	Billions of US Dollars
1993-10-01	0.07330
1994-01-01	0.22060
1994-04-01	0.56020
1994-07-01	0.40490
1994-10-01	0.71712
1995-01-01	0.29812
1995-04-01	0.35032
1995-07-01	0.58916
1995-10-01	0.69092
1996-01-01	0.75717
1996-04-01	0.64349
1996-07-01	0.23410
1996-10-01	0.47973
1997-01-01	0.37191
1997-04-01	0.46143
1997-07-01	0.52089
1997-10-01	0.38313
1998-01-01	0.41049
1998-04-01	0.42165
1998-07-01	0.37438
1998-10-01	0.26840
1999-01-01	0.18574
1999-04-01	0.14075
1999-07-01	0.12404
1999-10-01	0.14224
2000-01-01	0.11839
2000-04-01	0.14018
2000-07-01	0.15598
2000-10-01	0.13275
2001-01-01	0.16084
2001-04-01	0.21495
2001-07-01	0.22647
2001-10-01	0.20068
2002-01-01	0.12913
2002-04-01	0.05739
2002-07-01	0.04070
2002-10-01	0.04757
2003-01-01	0.04982
2003-04-01	0.04969
2003-07-01	0.05943
2003-10-01	0.08325
2004-01-01	0.07210
2004-04-01	0.08596
2004-07-01	0.06265
2004-10-01	0.05115
2005-01-01	0.03677
2005-04-01	0.07904
2005-07-01	0.07889
2005-10-01	0.06280
2006-01-01	0.05571
2006-04-01	0.02316
2006-07-01	0.02658
2006-10-01	0.02301
2007-01-01	0.02108
2007-04-01	0.01211
2007-07-01	0.01511
2007-10-01	0.01740
2008-01-01	0.01597
2008-04-01	0.00975
2008-07-01	0.00875
2008-10-01	0.01211
2009-01-01	0.00863
2009-04-01	0.00977
2009-07-01	0.00777
2009-10-01	0.00542
2010-01-01	0.00115