Quarter	Billions of US Dollars
2000-01-01	56.334
2000-04-01	55.030
2000-07-01	52.094
2000-10-01	53.900
2001-01-01	51.806
2001-04-01	50.053
2001-07-01	53.095
2001-10-01	52.161
2002-01-01	49.142
2002-04-01	57.266
2002-07-01	57.321
2002-10-01	62.564
2003-01-01	67.776
2003-04-01	74.075
2003-07-01	74.329
2003-10-01	81.927
2004-01-01	74.581
2004-04-01	76.973
2004-07-01	80.541
2004-10-01	92.205
2005-01-01	78.873
2005-04-01	75.432
2005-07-01	74.687
2005-10-01	77.573
2006-01-01	73.751
2006-04-01	83.069
2006-07-01	77.319
2006-10-01	86.783
2007-01-01	83.116
2007-04-01	86.655
2007-07-01	85.043
2007-10-01	93.368
2008-01-01	96.499
2008-04-01	98.052
2008-07-01	79.745
2008-10-01	88.036
2009-01-01	94.321
2009-04-01	89.283
2009-07-01	102.084
2009-10-01	108.732
2010-01-01	106.501
2010-04-01	102.735
2010-07-01	115.298
2010-10-01	117.798
2011-01-01	123.999
2011-04-01	126.778
2011-07-01	124.541
2011-10-01	123.548
2012-01-01	130.015
2012-04-01	131.760
2012-07-01	133.993
2012-10-01	142.114
2013-01-01	140.470
2013-04-01	150.005
2013-07-01	148.885
2013-10-01	158.324
2014-01-01	163.280
2014-04-01	165.813
2014-07-01	151.591
2014-10-01	150.171
2015-01-01	136.083
2015-04-01	145.811
2015-07-01	143.113
2015-10-01	144.977
2016-01-01	154.188
2016-04-01	145.498
2016-07-01	147.232
2016-10-01	143.514
2017-01-01	146.488
2017-04-01	155.341
2017-07-01	158.790
2017-10-01	164.586
2018-01-01	166.165