Quarter	Percent, Seasonally Adjusted
1999-01-01	9.44868475282051
1999-04-01	9.77115415259226
1999-07-01	10.08478652578440
1999-10-01	10.07441343012000
2000-01-01	10.16098781874210
2000-04-01	9.85619656464632
2000-07-01	8.96547442462206
2000-10-01	8.76312110854686
2001-01-01	6.39201571592851
2001-04-01	6.39297961839950
2001-07-01	6.52800824712692
2001-10-01	6.41128124193053
2002-01-01	7.20409086693922
2002-04-01	7.21005860985445
2002-07-01	7.46025000807569
2002-10-01	7.31592875533069
2003-01-01	7.00890177474045
2003-04-01	6.96309891750967
2003-07-01	7.52383526550120
2003-10-01	6.85114933283166
2004-01-01	7.11501613930024
2004-04-01	7.44330523647922
2004-07-01	7.37293093514930
2004-10-01	6.96415539840285
2005-01-01	6.95783363043267
2005-04-01	6.78544039359689
2005-07-01	5.61538210202425
2005-10-01	5.87536682644160
2006-01-01	6.07138693915348
2006-04-01	5.55462451425130
2006-07-01	5.78578962279958
2006-10-01	5.62178533853193
2007-01-01	6.11872929931763
2007-04-01	5.73300508787755
2007-07-01	5.89452350238321
2007-10-01	6.13086262360192
2008-01-01	6.53398186795420
2008-04-01	6.58899137913839
2008-07-01	7.33813609477690
2008-10-01	8.90732828705906
2009-01-01	10.69021679353810
2009-04-01	11.97347420027520
2009-07-01	12.42481771358940
2009-10-01	13.19351696273520
2010-01-01	13.89852660149140
2010-04-01	14.04472694650860
2010-07-01	14.39274393992370
2010-10-01	14.49587304776720
2011-01-01	14.51753055070110
2011-04-01	14.44504245531400
2011-07-01	15.28472663996380
2011-10-01	16.11351316191330
2012-01-01	17.05196686823670
2012-04-01	17.85342402519850
2012-07-01	18.29307404866790
2012-10-01	18.86632680593260
2013-01-01	20.24190563893150
2013-04-01	19.99644146544270
2013-07-01	19.89840965738690
2013-10-01	19.96241285628690
2014-01-01	20.29855129264850
2014-04-01	20.41123127873180
2014-07-01	19.69760199243050
2014-10-01	19.49746956750590
2015-01-01	18.95150186470070
2015-04-01	18.69685398091210
2015-07-01	18.65852867458360
2015-10-01	18.10260761166480
2016-01-01	17.62147783244550
2016-04-01	17.22129288771600
2016-07-01	16.81011419813190
2016-10-01	16.47251511709700
2017-01-01	15.87280315466420
2017-04-01	15.54629694860930
2017-07-01	15.14527812296010
2017-10-01	14.73655104003420
2018-01-01	15.02613008564420
2018-04-01	13.89573421088390
2018-07-01	12.94961379101720