Quarter	Billions of US Dollars
1990-01-01	361.114
1990-04-01	370.108
1990-07-01	384.850
1990-10-01	402.682
1991-01-01	418.246
1991-04-01	432.970
1991-07-01	452.602
1991-10-01	460.962
1992-01-01	442.474
1992-04-01	463.089
1992-07-01	451.640
1992-10-01	454.558
1993-01-01	488.255
1993-04-01	500.177
1993-07-01	494.311
1993-10-01	509.752
1994-01-01	485.060
1994-04-01	492.238
1994-07-01	512.472
1994-10-01	504.058
1995-01-01	516.820
1995-04-01	540.856
1995-07-01	561.276
1995-10-01	544.462
1996-01-01	572.489
1996-04-01	569.488
1996-07-01	583.078
1996-10-01	591.992
1997-01-01	583.447
1997-04-01	573.226
1997-07-01	566.827
1997-10-01	557.381
1998-01-01	567.712
1998-04-01	545.668
1998-07-01	522.512
1998-10-01	527.132
1999-01-01	539.537
1999-04-01	531.768
1999-07-01	534.633
1999-10-01	543.106
2000-01-01	540.586
2000-04-01	529.694
2000-07-01	510.659
2000-10-01	525.772
2001-01-01	504.568
2001-04-01	508.350
2001-07-01	500.533
2001-10-01	501.923
2002-01-01	496.362
2002-04-01	538.255
2002-07-01	525.017
2002-10-01	532.724
2003-01-01	559.143
2003-04-01	624.470
2003-07-01	612.045
2003-10-01	645.296
2004-01-01	648.185
2004-04-01	618.584
2004-07-01	652.184
2004-10-01	692.149
2005-01-01	697.641
2005-04-01	697.759
2005-07-01	726.064
2005-10-01	725.138
2006-01-01	720.773
2006-04-01	739.140
2006-07-01	746.497
2006-10-01	733.398
2007-01-01	737.683
2007-04-01	769.237
2007-07-01	815.731
2007-10-01	846.423
2008-01-01	825.036
2008-04-01	854.135
2008-07-01	831.908
2008-10-01	777.031
2009-01-01	797.216
2009-04-01	886.249
2009-07-01	984.173
2009-10-01	1028.434
2010-01-01	1073.989
2010-04-01	1080.982
2010-07-01	1136.726
2010-10-01	1189.317
2011-01-01	1213.394
2011-04-01	1283.281
2011-07-01	1235.432
2011-10-01	1296.847
2012-01-01	1324.463
2012-04-01	1358.855
2012-07-01	1417.503
2012-10-01	1414.200
2013-01-01	1384.412
2013-04-01	1334.596
2013-07-01	1358.162
2013-10-01	1302.739
2014-01-01	1258.218
2014-04-01	1349.761
2014-07-01	1297.408
2014-10-01	1269.098
2015-01-01	1189.662
2015-04-01	1226.720
2015-07-01	1143.669
2015-10-01	1122.822
2016-01-01	1209.635
2016-04-01	1250.196
2016-07-01	1250.368
2016-10-01	1192.350
2017-01-01	1206.913
2017-04-01	1264.617
2017-07-01	1289.572
2017-10-01	1289.957
2018-01-01	1245.479