Quarter	Billions of US Dollars
1994-10-01	112.906
1995-01-01	128.479
1995-04-01	134.229
1995-07-01	133.648
1995-10-01	138.379
1996-01-01	139.142
1996-04-01	137.580
1996-07-01	140.975
1996-10-01	141.471
1997-01-01	134.271
1997-04-01	132.706
1997-07-01	134.137
1997-10-01	134.925
1998-01-01	134.283
1998-04-01	141.421
1998-07-01	156.479
1998-10-01	156.878
1999-01-01	148.762
1999-04-01	144.493
1999-07-01	147.667
1999-10-01	142.240
2000-01-01	139.773
2000-04-01	138.776
2000-07-01	130.376
2000-10-01	141.620
2001-01-01	136.065
2001-04-01	132.650
2001-07-01	146.256
2001-10-01	145.966
2002-01-01	144.779
2002-04-01	169.485
2002-07-01	174.389
2002-10-01	188.094
2003-01-01	198.374
2003-04-01	211.605
2003-07-01	218.999
2003-10-01	239.107
2004-01-01	239.536
2004-04-01	242.776
2004-07-01	253.149
2004-10-01	285.029
2005-01-01	281.206
2005-04-01	272.481
2005-07-01	280.518
2005-10-01	280.347
2006-01-01	292.539
2006-04-01	315.467
2006-07-01	326.962
2006-10-01	350.672
2007-01-01	360.339
2007-04-01	369.045
2007-07-01	398.097
2007-10-01	426.167
2008-01-01	467.895
2008-04-01	469.950
2008-07-01	435.111
2008-10-01	432.824
2009-01-01	417.546
2009-04-01	447.280
2009-07-01	468.997
2009-10-01	464.811
2010-01-01	436.522
2010-04-01	399.987
2010-07-01	448.343
2010-10-01	439.218
2011-01-01	459.742
2011-04-01	468.347
2011-07-01	441.473
2011-10-01	427.109
2012-01-01	440.714
2012-04-01	418.008
2012-07-01	426.986
2012-10-01	438.565
2013-01-01	424.410
2013-04-01	433.151
2013-07-01	447.269
2013-10-01	455.554
2014-01-01	454.495
2014-04-01	453.022
2014-07-01	418.075
2014-10-01	404.246
2015-01-01	356.346
2015-04-01	367.449
2015-07-01	368.985
2015-10-01	357.424
2016-01-01	376.635
2016-04-01	370.100
2016-07-01	374.465
2016-10-01	353.335
2017-01-01	358.621
2017-04-01	383.948
2017-07-01	400.235
2017-10-01	405.625
2018-01-01	416.110