Quarter	Percent Change from Year Ago, Seasonally Adjusted
1997-01-01	0.744980506610012
1997-04-01	-0.261435068509048
1997-07-01	-1.341750691274800
1997-10-01	-1.597550921575300
1998-01-01	-1.243518978279200
1998-04-01	-0.523224152828495
1998-07-01	0.101850106453074
1998-10-01	0.399866418251484
1999-01-01	0.109766917040488
1999-04-01	0.676922448073913
1999-07-01	1.689838198284480
1999-10-01	2.643196227923540
2000-01-01	3.993996449261810
2000-04-01	4.728347318708480
2000-07-01	5.050300597750240
2000-10-01	4.605472614188090
2001-01-01	4.153961060475880
2001-04-01	3.158151242353850
2001-07-01	2.206088333722780
2001-10-01	2.109435187688760
2002-01-01	1.415608083335120
2002-04-01	1.253442638792690
2002-07-01	1.677280305694200
2002-10-01	1.928798782175480
2003-01-01	2.937634740169120
2003-04-01	3.471733427712110
2003-07-01	3.806401729429500
2003-10-01	4.163190813565060
2004-01-01	4.173918881927920
2004-04-01	4.294784255147970
2004-07-01	4.853128020379290
2004-10-01	5.698161022397830
2005-01-01	6.278368174595490
2005-04-01	6.980149191215590
2005-07-01	6.744380186555930
2005-10-01	6.415574005696310
2006-01-01	7.033597059207700
2006-04-01	7.248292094838950
2006-07-01	7.013163687643390
2006-10-01	6.824593853765070
2007-01-01	6.214438102958710
2007-04-01	5.227823342565250
2007-07-01	5.510013928651870
2007-10-01	5.415934778889940
2008-01-01	3.918137053754610
2008-04-01	3.916834789721540
2008-07-01	2.682452046445980
2008-10-01	-0.366008958759438
2009-01-01	-4.060438660051290
2009-04-01	-5.603038936372260
2009-07-01	-5.413547339741670
2009-10-01	-3.564788883459860
2010-01-01	0.660381823756860
2010-04-01	2.489991495363940
2010-07-01	2.518842814341900
2010-10-01	2.839232696591370
2011-01-01	2.835384552479860
2011-04-01	2.006703177937790
2011-07-01	1.319181793197310
2011-10-01	0.981867741764293
2012-01-01	0.126439089559041
2012-04-01	-0.607925652121287
2012-07-01	-0.979584617967971
2012-10-01	-1.449903412494100
2013-01-01	-1.800573816874990
2013-04-01	-1.120482288474790
2013-07-01	-0.276242539544920
2013-10-01	1.279444068219570
2014-01-01	1.599752515536020
2014-04-01	2.401924365879860
2014-07-01	3.402979367802500
2014-10-01	3.438131516354580
2015-01-01	5.255045637860370
2015-04-01	5.798854364740220
2015-07-01	5.570838462324420
2015-10-01	4.914749724092830
2016-01-01	3.562430692699570
2016-04-01	2.414640645643390
2016-07-01	1.694066940485070
2016-10-01	1.803843157288580
2017-01-01	2.871273752318630
2017-04-01	4.931122759965880
2017-07-01	5.099507560616800
2017-10-01	4.988120311300000
2018-01-01	4.105682183213460
2018-04-01	2.421352430412540