Quarter	Billions of US Dollars
1995-01-01	388.283
1995-04-01	393.641
1995-07-01	385.659
1995-10-01	378.482
1996-01-01	377.353
1996-04-01	368.910
1996-07-01	368.315
1996-10-01	348.310
1997-01-01	329.902
1997-04-01	320.392
1997-07-01	315.784
1997-10-01	304.203
1998-01-01	300.964
1998-04-01	307.624
1998-07-01	328.676
1998-10-01	323.368
1999-01-01	306.033
1999-04-01	293.627
1999-07-01	306.571
1999-10-01	280.726
2000-01-01	275.839
2000-04-01	274.165
2000-07-01	254.031
2000-10-01	261.348
2001-01-01	254.325
2001-04-01	247.900
2001-07-01	268.156
2001-10-01	252.023
2002-01-01	257.735
2002-04-01	292.918
2002-07-01	288.778
2002-10-01	302.043
2003-01-01	323.970
2003-04-01	339.108
2003-07-01	344.529
2003-10-01	360.935
2004-01-01	367.400
2004-04-01	365.067
2004-07-01	373.711
2004-10-01	392.713
2005-01-01	393.517
2005-04-01	365.527
2005-07-01	362.944
2005-10-01	347.888
2006-01-01	373.051
2006-04-01	385.352
2006-07-01	386.434
2006-10-01	391.711
2007-01-01	410.080
2007-04-01	415.685
2007-07-01	446.360
2007-10-01	441.628
2008-01-01	496.875
2008-04-01	494.269
2008-07-01	456.347
2008-10-01	455.982
2009-01-01	460.337
2009-04-01	492.157
2009-07-01	517.328
2009-10-01	500.097
2010-01-01	490.553
2010-04-01	453.037
2010-07-01	503.402
2010-10-01	486.479
2011-01-01	541.513
2011-04-01	549.569
2011-07-01	521.437
2011-10-01	503.219
2012-01-01	540.329
2012-04-01	516.812
2012-07-01	529.387
2012-10-01	533.437
2013-01-01	542.514
2013-04-01	559.199
2013-07-01	573.739
2013-10-01	570.588
2014-01-01	596.596
2014-04-01	595.519
2014-07-01	548.555
2014-10-01	519.755
2015-01-01	481.111
2015-04-01	496.504
2015-07-01	497.769
2015-10-01	473.939
2016-01-01	513.355
2016-04-01	506.488
2016-07-01	508.631
2016-10-01	472.395
2017-01-01	490.947
2017-04-01	522.024
2017-07-01	548.453
2017-10-01	542.302
2018-01-01	575.678