Quarter	Percent, Seasonally Adjusted
1998-01-01	11.48025698899280
1998-04-01	10.27658674778260
1998-07-01	10.38076852356850
1998-10-01	10.72971635321610
1999-01-01	9.80004687150741
1999-04-01	9.82880254565955
1999-07-01	8.70492037652149
1999-10-01	8.25158368891768
2000-01-01	9.60198256198543
2000-04-01	8.87348561169083
2000-07-01	8.74676571249253
2000-10-01	8.31693155667088
2001-01-01	8.98677722332141
2001-04-01	9.63940824659609
2001-07-01	9.01500246299192
2001-10-01	10.01051540992240
2002-01-01	10.04616333967930
2002-04-01	11.26005332415690
2002-07-01	12.12069684923190
2002-10-01	13.26171943352670
2003-01-01	13.56725733701260
2003-04-01	14.52915759293570
2003-07-01	14.77392240563810
2003-10-01	15.49102318221480
2004-01-01	14.91188329405880
2004-04-01	15.10245725274190
2004-07-01	16.12782738563030
2004-10-01	15.61923330851070
2005-01-01	15.43896826225940
2005-04-01	16.61252681109450
2005-07-01	16.75159049861620
2005-10-01	16.06519708977320
2006-01-01	15.23774719339580
2006-04-01	16.05380966418420
2006-07-01	17.06813447911770
2006-10-01	17.67642932523360
2007-01-01	17.46717906017650
2007-04-01	16.65057744018170
2007-07-01	16.24250766800420
2007-10-01	16.54555654414530
2008-01-01	15.85175877718120
2008-04-01	15.61342635849950
2008-07-01	17.30856186576900
2008-10-01	17.93353009391050
2009-01-01	19.40314686946640
2009-04-01	20.38365720868370
2009-07-01	19.50351898638000
2009-10-01	22.00483916837700
2010-01-01	22.29406519879810
2010-04-01	22.26769876775650
2010-07-01	23.83896382532500
2010-10-01	22.63322701144910
2011-01-01	26.84172566798840
2011-04-01	29.19289357301200
2011-07-01	30.61708049830170
2011-10-01	34.33387447748520
2012-01-01	34.55747145277450
2012-04-01	37.65046828767010
2012-07-01	39.97832441526660
2012-10-01	39.50809758707170
2013-01-01	40.23619796924540
2013-04-01	39.16903334911660
2013-07-01	37.48446917911000
2013-10-01	35.38923388091750
2014-01-01	35.50348001350080
2014-04-01	37.20206470718850
2014-07-01	33.08447631165510
2014-10-01	33.29748354876700
2015-01-01	32.70898173840590
2015-04-01	31.47823356175860
2015-07-01	31.53616521187540
2015-10-01	32.08290032945700
2016-01-01	29.66070459547710
2016-04-01	28.49780265180510
2016-07-01	26.56708692974130
2016-10-01	27.05806213125250
2017-01-01	23.87434568441830
2017-04-01	24.10645350196410
2017-07-01	24.55787388325170
2017-10-01	22.96865892277560
2018-01-01	20.75413086158630
2018-04-01	20.67732269687160