Quarter	Billions of US Dollars
1999-10-01	106.282
2000-01-01	110.297
2000-04-01	109.690
2000-07-01	109.887
2000-10-01	107.376
2001-01-01	104.958
2001-04-01	107.339
2001-07-01	105.677
2001-10-01	106.740
2002-01-01	103.986
2002-04-01	104.119
2002-07-01	103.294
2002-10-01	107.326
2003-01-01	110.608
2003-04-01	121.558
2003-07-01	120.865
2003-10-01	124.093
2004-01-01	122.171
2004-04-01	122.718
2004-07-01	124.390
2004-10-01	129.618
2005-01-01	129.700
2005-04-01	126.923
2005-07-01	128.881
2005-10-01	126.477
2006-01-01	126.449
2006-04-01	126.701
2006-07-01	130.194
2006-10-01	134.593
2007-01-01	136.844
2007-04-01	131.347
2007-07-01	137.925
2007-10-01	144.478
2008-01-01	154.556
2008-04-01	166.225
2008-07-01	162.718
2008-10-01	154.068
2009-01-01	147.348
2009-04-01	159.156
2009-07-01	169.738
2009-10-01	169.763
2010-01-01	174.179
2010-04-01	167.330
2010-07-01	180.209
2010-10-01	185.507
2011-01-01	187.094
2011-04-01	188.417
2011-07-01	177.784
2011-10-01	178.070
2012-01-01	184.770
2012-04-01	177.658
2012-07-01	182.466
2012-10-01	196.467
2013-01-01	202.768
2013-04-01	207.170
2013-07-01	213.352
2013-10-01	219.472
2014-01-01	222.035
2014-04-01	228.918
2014-07-01	215.723
2014-10-01	205.907
2015-01-01	206.351
2015-04-01	211.343
2015-07-01	205.371
2015-10-01	210.856
2016-01-01	221.520
2016-04-01	220.384
2016-07-01	223.825
2016-10-01	216.657
2017-01-01	229.184
2017-04-01	240.690
2017-07-01	241.570
2017-10-01	244.258
2018-01-01	245.572