Quarter	Billions of US Dollars
1990-01-01	358.567
1990-04-01	364.788
1990-07-01	377.280
1990-10-01	391.134
1991-01-01	401.306
1991-04-01	418.115
1991-07-01	433.748
1991-10-01	437.773
1992-01-01	429.976
1992-04-01	445.708
1992-07-01	435.787
1992-10-01	440.741
1993-01-01	464.197
1993-04-01	468.367
1993-07-01	463.188
1993-10-01	470.741
1994-01-01	465.001
1994-04-01	481.731
1994-07-01	502.130
1994-10-01	487.541
1995-01-01	495.408
1995-04-01	510.816
1995-07-01	529.624
1995-10-01	523.654
1996-01-01	536.873
1996-04-01	536.063
1996-07-01	537.071
1996-10-01	538.825
1997-01-01	536.679
1997-04-01	531.233
1997-07-01	526.104
1997-10-01	511.689
1998-01-01	517.309
1998-04-01	493.457
1998-07-01	477.271
1998-10-01	478.620
1999-01-01	503.846
1999-04-01	504.265
1999-07-01	510.446
1999-10-01	522.862
2000-01-01	521.238
2000-04-01	509.629
2000-07-01	490.728
2000-10-01	500.391
2001-01-01	479.722
2001-04-01	489.623
2001-07-01	477.644
2001-10-01	475.931
2002-01-01	478.622
2002-04-01	515.045
2002-07-01	493.504
2002-10-01	499.311
2003-01-01	528.329
2003-04-01	575.878
2003-07-01	577.118
2003-10-01	607.298
2004-01-01	602.531
2004-04-01	588.268
2004-07-01	614.401
2004-10-01	645.718
2005-01-01	653.745
2005-04-01	638.892
2005-07-01	666.982
2005-10-01	669.449
2006-01-01	673.324
2006-04-01	696.084
2006-07-01	694.048
2006-10-01	677.503
2007-01-01	685.057
2007-04-01	729.117
2007-07-01	768.275
2007-10-01	787.601
2008-01-01	758.225
2008-04-01	796.050
2008-07-01	780.758
2008-10-01	729.434
2009-01-01	750.296
2009-04-01	840.502
2009-07-01	924.467
2009-10-01	963.534
2010-01-01	1011.067
2010-04-01	1010.322
2010-07-01	1049.232
2010-10-01	1104.235
2011-01-01	1142.770
2011-04-01	1186.919
2011-07-01	1120.805
2011-10-01	1164.843
2012-01-01	1195.601
2012-04-01	1204.563
2012-07-01	1276.865
2012-10-01	1270.518
2013-01-01	1257.013
2013-04-01	1241.870
2013-07-01	1280.105
2013-10-01	1230.504
2014-01-01	1173.011
2014-04-01	1242.866
2014-07-01	1197.547
2014-10-01	1152.379
2015-01-01	1051.001
2015-04-01	1114.730
2015-07-01	1047.022
2015-10-01	1025.438
2016-01-01	1100.262
2016-04-01	1120.593
2016-07-01	1119.588
2016-10-01	1096.576
2017-01-01	1112.012
2017-04-01	1173.847
2017-07-01	1225.830
2017-10-01	1221.207
2018-01-01	1182.996