Quarter	Billions of US Dollars
1994-07-01	274.543
1994-10-01	299.368
1995-01-01	313.964
1995-04-01	311.133
1995-07-01	313.535
1995-10-01	322.118
1996-01-01	338.056
1996-04-01	341.759
1996-07-01	323.769
1996-10-01	309.562
1997-01-01	304.074
1997-04-01	322.187
1997-07-01	329.084
1997-10-01	340.658
1998-01-01	354.538
1998-04-01	357.682
1998-07-01	352.710
1998-10-01	346.276
1999-01-01	250.142
1999-04-01	237.673
1999-07-01	228.396
1999-10-01	248.984
2000-01-01	229.566
2000-04-01	224.853
2000-07-01	222.028
2000-10-01	231.364
2001-01-01	227.289
2001-04-01	231.250
2001-07-01	221.341
2001-10-01	247.773
2002-01-01	255.799
2002-04-01	220.751
2002-07-01	187.571
2002-10-01	204.205
2003-01-01	220.119
2003-04-01	249.026
2003-07-01	250.254
2003-10-01	259.788
2004-01-01	253.490
2004-04-01	244.415
2004-07-01	265.753
2004-10-01	280.129
2005-01-01	285.467
2005-04-01	328.398
2005-07-01	355.280
2005-10-01	350.281
2006-01-01	385.720
2006-04-01	400.405
2006-07-01	423.101
2006-10-01	451.741
2007-01-01	462.843
2007-04-01	485.043
2007-07-01	510.676
2007-10-01	541.615
2008-01-01	587.395
2008-04-01	695.042
2008-07-01	624.661
2008-10-01	555.190
2009-01-01	556.532
2009-04-01	673.441
2009-07-01	756.632
2009-10-01	806.629
2010-01-01	800.866
2010-04-01	818.803
2010-07-01	920.762
2010-10-01	992.699
2011-01-01	1035.308
2011-04-01	1104.471
2011-07-01	954.293
2011-10-01	989.287
2012-01-01	1040.302
2012-04-01	963.671
2012-07-01	1000.488
2012-10-01	1034.106
2013-01-01	1088.633
2013-04-01	1030.847
2013-07-01	1049.793
2013-10-01	1047.025
2014-01-01	1115.141
2014-04-01	1191.819
2014-07-01	1103.818
2014-10-01	1033.779
2015-01-01	856.928
2015-04-01	914.468
2015-07-01	724.459
2015-10-01	744.140
2016-01-01	803.572
2016-04-01	895.465
2016-07-01	879.629
2016-10-01	881.197
2017-01-01	902.813
2017-04-01	854.416
2017-07-01	909.584
2017-10-01	869.740
2018-01-01	871.166