Quarter	Billions of US Dollars
1993-10-01	115.271
1994-01-01	139.888
1994-04-01	145.073
1994-07-01	214.153
1994-10-01	243.881
1995-01-01	253.683
1995-04-01	257.076
1995-07-01	250.862
1995-10-01	255.786
1996-01-01	265.003
1996-04-01	265.470
1996-07-01	258.123
1996-10-01	250.474
1997-01-01	246.901
1997-04-01	256.568
1997-07-01	262.879
1997-10-01	268.957
1998-01-01	274.570
1998-04-01	275.574
1998-07-01	273.558
1998-10-01	272.116
1999-01-01	184.975
1999-04-01	178.091
1999-07-01	171.040
1999-10-01	187.227
2000-01-01	179.218
2000-04-01	187.896
2000-07-01	187.734
2000-10-01	188.299
2001-01-01	179.868
2001-04-01	161.077
2001-07-01	149.266
2001-10-01	173.816
2002-01-01	177.151
2002-04-01	148.239
2002-07-01	112.720
2002-10-01	127.142
2003-01-01	138.844
2003-04-01	167.570
2003-07-01	168.559
2003-10-01	176.396
2004-01-01	175.263
2004-04-01	171.009
2004-07-01	195.624
2004-10-01	216.367
2005-01-01	226.523
2005-04-01	264.441
2005-07-01	291.762
2005-10-01	296.883
2006-01-01	327.107
2006-04-01	342.864
2006-07-01	366.323
2006-10-01	399.463
2007-01-01	434.830
2007-04-01	487.278
2007-07-01	553.102
2007-10-01	628.799
2008-01-01	667.298
2008-04-01	778.366
2008-07-01	693.321
2008-10-01	610.869
2009-01-01	608.986
2009-04-01	740.160
2009-07-01	839.089
2009-10-01	908.085
2010-01-01	920.415
2010-04-01	964.185
2010-07-01	1117.621
2010-10-01	1235.371
2011-01-01	1322.520
2011-04-01	1448.117
2011-07-01	1281.744
2011-10-01	1361.295
2012-01-01	1442.773
2012-04-01	1348.354
2012-07-01	1410.032
2012-10-01	1469.003
2013-01-01	1534.505
2013-04-01	1443.675
2013-07-01	1460.893
2013-10-01	1449.769
2014-01-01	1534.153
2014-04-01	1631.577
2014-07-01	1503.806
2014-10-01	1438.417
2015-01-01	1184.798
2015-04-01	1256.999
2015-07-01	990.594
2015-10-01	1011.755
2016-01-01	1092.561
2016-04-01	1217.501
2016-07-01	1195.970
2016-10-01	1198.102
2017-01-01	1227.492
2017-04-01	1161.690
2017-07-01	1236.697
2017-10-01	1182.524
2018-01-01	1184.463