Quarter	Billions of US Dollars
2000-01-01	139.791
2000-04-01	141.852
2000-07-01	130.768
2000-10-01	137.915
2001-01-01	133.768
2001-04-01	129.784
2001-07-01	141.046
2001-10-01	143.625
2002-01-01	140.761
2002-04-01	162.541
2002-07-01	162.997
2002-10-01	179.750
2003-01-01	185.659
2003-04-01	198.964
2003-07-01	204.281
2003-10-01	229.237
2004-01-01	227.971
2004-04-01	238.404
2004-07-01	246.753
2004-10-01	271.419
2005-01-01	255.478
2005-04-01	245.495
2005-07-01	244.904
2005-10-01	252.412
2006-01-01	259.701
2006-04-01	278.841
2006-07-01	280.394
2006-10-01	297.179
2007-01-01	308.168
2007-04-01	314.648
2007-07-01	331.891
2007-10-01	353.180
2008-01-01	386.681
2008-04-01	393.570
2008-07-01	366.459
2008-10-01	368.511
2009-01-01	374.786
2009-04-01	412.093
2009-07-01	433.905
2009-10-01	433.682
2010-01-01	419.892
2010-04-01	387.667
2010-07-01	447.276
2010-10-01	441.702
2011-01-01	486.241
2011-04-01	494.373
2011-07-01	470.367
2011-10-01	460.907
2012-01-01	375.984
2012-04-01	379.941
2012-07-01	389.460
2012-10-01	402.540
2013-01-01	392.751
2013-04-01	415.523
2013-07-01	429.440
2013-10-01	442.005
2014-01-01	441.157
2014-04-01	439.846
2014-07-01	401.630
2014-10-01	388.041
2015-01-01	326.374
2015-04-01	337.902
2015-07-01	340.476
2015-10-01	339.384
2016-01-01	351.930
2016-04-01	350.031
2016-07-01	347.339
2016-10-01	332.043
2017-01-01	332.116
2017-04-01	352.723
2017-07-01	370.124
2017-10-01	380.675
2018-01-01	396.714