Quarter	Billions of US Dollars
1993-07-01	3.1846
1993-10-01	2.5028
1994-01-01	2.1243
1994-04-01	1.4731
1994-07-01	1.6703
1994-10-01	2.0468
1995-01-01	2.3292
1995-04-01	2.6595
1995-07-01	2.7745
1995-10-01	2.5838
1996-01-01	2.6047
1996-04-01	2.2715
1996-07-01	1.7939
1996-10-01	1.5626
1997-01-01	1.6134
1997-04-01	1.9292
1997-07-01	1.8816
1997-10-01	2.3372
1998-01-01	2.6992
1998-04-01	2.5356
1998-07-01	2.2608
1998-10-01	2.2961
1999-01-01	2.2665
1999-04-01	2.5025
1999-07-01	4.2574
1999-10-01	3.2132
2000-01-01	2.7439
2000-04-01	2.6548
2000-07-01	2.7217
2000-10-01	2.8893
2001-01-01	3.4394
2001-04-01	2.7770
2001-07-01	3.1687
2001-10-01	3.1540
2002-01-01	3.1750
2002-04-01	4.3855
2002-07-01	3.8020
2002-10-01	4.7838
2003-01-01	6.5531
2003-04-01	6.5807
2003-07-01	6.7027
2003-10-01	9.4664
2004-01-01	12.0981
2004-04-01	11.5956
2004-07-01	10.2076
2004-10-01	11.0089
2005-01-01	10.4591
2005-04-01	8.9512
2005-07-01	9.7202
2005-10-01	11.3000
2006-01-01	11.8499
2006-04-01	14.6470
2006-07-01	15.5969
2006-10-01	18.0161
2007-01-01	20.2118
2007-04-01	20.3806
2007-07-01	17.5513
2007-10-01	18.7798
2008-01-01	23.3455
2008-04-01	24.3541
2008-07-01	26.0042
2008-10-01	29.8189
2009-01-01	33.5487
2009-04-01	30.5253
2009-07-01	47.9841
2009-10-01	40.0052
2010-01-01	31.5893
2010-04-01	36.3339
2010-07-01	19.1539
2010-10-01	21.7818
2011-01-01	22.5059
2011-04-01	25.6432
2011-07-01	26.9126
2011-10-01	28.1369
2012-01-01	30.3089
2012-04-01	26.0862
2012-07-01	26.2948
2012-10-01	24.4109
2013-01-01	24.0196
2013-04-01	25.8342
2013-07-01	27.1333
2013-10-01	26.0524
2014-01-01	21.6782
2014-04-01	18.7040
2014-07-01	17.4277
2014-10-01	20.1379
2015-01-01	17.7981
2015-04-01	19.5416