Quarter	Growth rate same period previous year
1981-01-01	3.2425727954639400
1981-04-01	7.2161322469077600
1981-07-01	16.6966966966967000
1981-10-01	20.0804876605314000
1982-01-01	26.2013729977117000
1982-04-01	26.7905959540733000
1982-07-01	17.6531137416366000
1982-10-01	8.8220798422868400
1983-01-01	5.2583862194016100
1983-04-01	0.7330746011211860
1983-07-01	2.9746281714785600
1983-10-01	7.6539855072463900
1984-01-01	6.2015503875969100
1984-04-01	6.7208904109589000
1984-07-01	6.8394222599830200
1984-10-01	6.1001262095077800
1985-01-01	3.4874290348742900
1985-04-01	2.9683112715604000
1985-07-01	2.1868787276342100
1985-10-01	1.9032513877874700
1986-01-01	-1.1755485893416800
1986-04-01	-2.6490066225165900
1986-07-01	-5.8365758754863900
1986-10-01	-7.0817120622568200
1987-01-01	-9.3180015860428200
1987-04-01	-10.4041616646659000
1987-07-01	-8.3471074380165200
1987-10-01	-7.6633165829145700
1988-01-01	-3.2794053344993500
1988-04-01	0.1339883876730660
1988-07-01	4.3282236248872800
1988-10-01	9.5238095238095400
1989-01-01	13.0198915009042000
1989-04-01	12.0428189116860000
1989-07-01	8.1676750216075900
1989-10-01	2.7329192546583700
1990-01-01	-0.7999999999999840
1990-04-01	-3.2245222929936200
1990-07-01	-4.4746304434678300
1990-10-01	-5.8041112454655200
1991-01-01	-7.5000000000000000
1991-04-01	-4.2369395310571600
1991-07-01	-3.9314094521120800
1991-10-01	-4.0650406504065200
1992-01-01	-4.1412380122057600
1992-04-01	-5.4982817869415800
1992-07-01	-5.9643012625163200
1992-10-01	-6.3336306868867000
1993-01-01	-6.0027285129604400
1993-04-01	-5.0909090909091000
1993-07-01	-1.3888888888889100
1993-10-01	2.2857142857142500
1994-01-01	3.0962747943880100
1994-04-01	0.8620689655172450
1994-07-01	-1.4084507042253300
1994-10-01	-2.0484171322159800
1995-01-01	2.9094321914593900
1995-04-01	6.0778727445394100
1995-07-01	6.5238095238095200
1995-10-01	4.8954372623574100
1996-01-01	-2.6903784769721700
1996-04-01	-6.6248880931065300
1996-07-01	-8.0911935628073400
1996-10-01	-6.9777979157227100
1997-01-01	-3.6551077788191300
1997-04-01	0.4314477468839820
1997-07-01	4.7665369649805500
1997-10-01	6.0399415489527500
1998-01-01	7.0038910505836500
1998-04-01	4.7255369928400900
1998-07-01	0.1857010213556360
1998-10-01	-3.7207165824529200
1999-01-01	-7.9545454545454500
1999-04-01	-9.2980856882406600
1999-07-01	-7.3679332715477400
1999-10-01	-3.0057251908397100
2000-01-01	1.1884773662551300
2000-04-01	6.5118183510143400
2000-07-01	7.5945380097455900
2000-10-01	6.2906487402306600
2001-01-01	5.6538839724680600
2001-04-01	1.5684410646388000
2001-07-01	-0.1873536299765600
2001-10-01	-2.1911421911422000
2002-01-01	-3.7691949744067000
2002-04-01	-3.0416471689284300
2002-07-01	-1.1731581417175200
2002-10-01	0.1429933269780900
2003-01-01	1.8858800773694400
2003-04-01	1.9787644787644900
2003-07-01	-0.3798670465337190
2003-10-01	0.0951927653498388
2004-01-01	0.9492168960607560
2004-04-01	11.4529105537151000
2004-07-01	17.8265014299333000
2004-10-01	22.6343319067998000
2005-01-01	21.3446168312177000
2005-04-01	7.7707006369426500
2005-07-01	2.5485436893203800
2005-10-01	1.9775106630476800
2006-01-01	4.3781480046493700
2006-04-01	9.2592592592592600
2006-07-01	12.1499013806706000
2006-10-01	10.1901140684411000
2007-01-01	11.1358574610245000
2007-04-01	9.1236927515326300
2007-07-01	6.4016883573689800
2007-10-01	4.8999309868875100
2008-01-01	3.4402137608550500
2008-04-01	6.7415730337078900
2008-07-01	12.1322314049587000
2008-10-01	7.2368421052631500
2009-01-01	-1.8082014853083600
2009-04-01	-15.2012383900929000
2009-07-01	-21.3443396226415000
2009-10-01	-17.6687116564417000
2010-01-01	-9.7336402499177900
2010-04-01	9.4194961664841000
2010-07-01	16.3043478260869000
2010-10-01	14.4560357675112000
2011-01-01	18.1056466302368000
2011-04-01	11.5782449115782000
2011-07-01	6.3164679342571800
2011-10-01	7.6822916666666700
2012-01-01	2.3133867982726800
2012-04-01	-0.6279904306220000
2012-07-01	-0.1212488632919130
2012-10-01	-1.9347037484885200
2013-01-01	-2.9846246608381200
2013-04-01	-5.3265121877821000
2013-07-01	-6.8588770864947000
2013-10-01	-5.4562268803945700
2014-01-01	-5.1895587321317500
2014-04-01	-4.5454545454545500
2014-07-01	-1.8246985988921400
2014-10-01	-0.3586566677535090
2015-01-01	0.6882989183874040
2015-04-01	0.5328005328005180
2015-07-01	-0.5310321938267480
2015-10-01	-4.7120418848167500
2016-01-01	-6.2825520833333400
2016-04-01	-4.5710500165617700
2016-07-01	0.3670337003670270
2016-10-01	0.5837912087912130
2017-01-01	8.8919763806877600
2017-04-01	7.0114543561263500
2017-07-01	1.9946808510638500
2017-10-01	8.8426083987709000
2018-01-01	3.1259968102073300
2018-04-01	5.5789815115147500
2018-07-01	7.1056062581486300