Quarter	Percent, Seasonally Adjusted
1999-01-01	16.15796198147610
1999-04-01	20.79997338880790
1999-07-01	17.62247059367780
1999-10-01	17.60176431465720
2000-01-01	19.78294359787210
2000-04-01	19.37241770903320
2000-07-01	17.40650877119860
2000-10-01	17.47148252322550
2001-01-01	17.84921252078030
2001-04-01	17.79398985476880
2001-07-01	22.01650936877420
2001-10-01	24.39257778115850
2002-01-01	17.98664905196810
2002-04-01	17.76618991747450
2002-07-01	20.34364154485500
2002-10-01	18.30333769754680
2003-01-01	20.03056678449760
2003-04-01	19.61107093606920
2003-07-01	20.34716756985570
2003-10-01	19.34867724906320
2004-01-01	20.37715455004090
2004-04-01	18.86856969685730
2004-07-01	17.32025815698150
2004-10-01	19.99326103648770
2005-01-01	19.87243365187910
2005-04-01	16.69499974783840
2005-07-01	17.23833428838720
2005-10-01	17.27426943735210
2006-01-01	22.11730799304300
2006-04-01	16.71956511778930
2006-07-01	15.89968792908950
2006-10-01	12.07917697792690
2007-01-01	12.27975116085640
2007-04-01	9.50705568331334
2007-07-01	10.31732071916360
2007-10-01	12.60520806411520
2008-01-01	12.30287595649200
2008-04-01	12.10122844223380
2008-07-01	10.07100411251040
2008-10-01	10.74181918086650
2009-01-01	12.24346536719510
2009-04-01	15.29964296164260
2009-07-01	13.41740573916910
2009-10-01	12.20752340994580
2010-01-01	10.55223604522320
2010-04-01	15.55598521067080
2010-07-01	14.00315077549760
2010-10-01	15.28930250804690
2011-01-01	18.57316822471950
2011-04-01	15.26962822552410
2011-07-01	15.48587636297240
2011-10-01	17.48752495110400
2012-01-01	19.68417346687600
2012-04-01	19.22136242589300
2012-07-01	22.92156908607920
2012-10-01	22.35459049967520
2013-01-01	23.27688378920100
2013-04-01	30.36921229830100
2013-07-01	20.20812182664730
2013-10-01	20.44579296124180
2014-01-01	21.26945536131080
2014-04-01	22.41299188857120
2014-07-01	21.65627836629750
2014-10-01	19.75495139963370
2015-01-01	18.91911075829570
2015-04-01	12.83066972083380
2015-07-01	13.67640053850070
2015-10-01	12.86169691784340
2016-01-01	13.53272509520940
2016-04-01	14.74345119012600
2016-07-01	14.91367669756200
2016-10-01	15.55305614796920
2017-01-01	9.47885386371281
2017-04-01	11.92656703857770
2017-07-01	17.82166655042500
2017-10-01	12.60998662410270
2018-01-01	11.76107507142420
2018-04-01	10.51983622610170