Quarter	Billions of US Dollars
1990-07-01	0.1113
1990-10-01	0.1113
1991-01-01	0.1113
1991-04-01	0.1113
1991-07-01	0.1113
1991-10-01	0.1113
1992-01-01	0.1113
1992-04-01	0.1113
1992-07-01	0.1113
1992-10-01	0.1113
1993-01-01	0.1113
1993-04-01	0.1113
1994-10-01	5.8396
1995-01-01	5.8396
1995-04-01	5.8396
1995-07-01	6.0896
1995-10-01	6.0896
1996-01-01	6.0896
1996-04-01	6.1696
1996-07-01	6.3334
1996-10-01	6.3804
1997-01-01	6.3686
1997-04-01	6.6890
1997-07-01	7.3373
1997-10-01	7.8942
1998-01-01	7.8895
1998-04-01	7.8954
1998-07-01	8.0148
1998-10-01	8.5237
1999-01-01	8.4843
1999-04-01	8.6293
1999-07-01	9.1095
1999-10-01	9.9588
2000-01-01	10.9901
2000-04-01	10.5853
2000-07-01	10.1177
2000-10-01	9.3259
2001-01-01	10.6713
2001-04-01	10.3668
2001-07-01	10.5538
2001-10-01	11.4361
2002-01-01	11.8438
2002-04-01	12.5938
2002-07-01	13.8989
2002-10-01	13.6116
2003-01-01	15.4893
2003-04-01	15.7330
2003-07-01	17.3229
2003-10-01	19.6695
2004-01-01	21.9783
2004-04-01	23.1955
2004-07-01	23.3285
2004-10-01	24.4701
2005-01-01	28.1374
2005-04-01	32.8433
2005-07-01	31.8039
2005-10-01	33.3633
2006-01-01	37.6026
2006-04-01	39.3110
2006-07-01	38.5042
2006-10-01	40.2289
2007-01-01	40.1643
2007-04-01	42.1568
2007-07-01	43.6278
2007-10-01	43.9418
2008-01-01	46.2837
2008-04-01	49.4213
2008-07-01	45.5908
2008-10-01	44.3412
2009-01-01	44.3808
2009-04-01	48.5165
2009-07-01	53.6445
2009-10-01	55.9122
2010-01-01	58.5729
2010-04-01	54.4953
2010-07-01	62.5132
2010-10-01	62.5625
2011-01-01	66.0983
2011-04-01	70.3920
2011-07-01	67.2043
2011-10-01	67.2279
2012-01-01	73.1451
2012-04-01	71.6277
2012-07-01	76.3652
2012-10-01	82.3790
2013-01-01	77.3522
2013-04-01	77.8911
2013-07-01	80.8260
2013-10-01	83.3909
2014-01-01	83.8706
2014-04-01	80.7532
2014-07-01	77.0698
2014-10-01	74.5054
2015-01-01	69.2937
2015-04-01	70.7437