Quarter	Percent, Seasonally Adjusted
1999-01-01	31.5109557208060
1999-04-01	31.6683110034094
1999-07-01	30.5460770993069
1999-10-01	30.5125099110144
2000-01-01	30.6747246468474
2000-04-01	29.7287123092390
2000-07-01	29.1922900419601
2000-10-01	29.1082334347320
2001-01-01	27.6196392316296
2001-04-01	26.9443779792202
2001-07-01	26.9290084555331
2001-10-01	26.0661483434688
2002-01-01	26.0401023417602
2002-04-01	26.0990142458941
2002-07-01	25.3508274737203
2002-10-01	25.5803555746007
2003-01-01	25.1077046499530
2003-04-01	23.9482538092984
2003-07-01	23.4610948901582
2003-10-01	22.6458888543563
2004-01-01	22.1922366379530
2004-04-01	20.8375415239367
2004-07-01	20.1494221371983
2004-10-01	20.0958519675430
2005-01-01	20.0459492065608
2005-04-01	19.4926016159938
2005-07-01	18.6674299578479
2005-10-01	18.7330583114191
2006-01-01	18.9150089740921
2006-04-01	18.5739592693027
2006-07-01	18.9300504179849
2006-10-01	17.8900634279292
2007-01-01	18.0247897270831
2007-04-01	17.6743223774900
2007-07-01	17.9391378398600
2007-10-01	17.1799520014516
2008-01-01	16.9076677479799
2008-04-01	16.4960812543524
2008-07-01	17.1158057206856
2008-10-01	17.7751094074868
2009-01-01	15.8074786940707
2009-04-01	16.5320745166184
2009-07-01	16.4660499957679
2009-10-01	16.0287968354509
2010-01-01	16.6988767066694
2010-04-01	16.6948189165363
2010-07-01	16.3584971985441
2010-10-01	16.4350654262719
2011-01-01	16.2863199931401
2011-04-01	16.3275965576110
2011-07-01	16.3889727913515
2011-10-01	15.6602402155490
2012-01-01	16.4415697899280
2012-04-01	16.9926171132218
2012-07-01	17.4691338286336
2012-10-01	17.2687641311921
2013-01-01	16.6420453675379
2013-04-01	17.1393057331573
2013-07-01	17.2687783361526
2013-10-01	17.0885798917556
2014-01-01	19.1100706130229
2014-04-01	20.2976895485703
2014-07-01	20.4185612781120
2014-10-01	22.0038297731718
2015-01-01	21.9917904498302
2015-04-01	23.0755459223858
2015-07-01	23.7123163011180
2015-10-01	23.6253640414130
2016-01-01	24.1816975716592
2016-04-01	23.5125605478069
2016-07-01	25.2800217801575
2016-10-01	25.4780317579749
2017-01-01	25.8193500578715
2017-04-01	25.3548116088869
2017-07-01	23.8447597039331
2017-10-01	24.1527646032363
2018-01-01	23.1733922678214
2018-04-01	24.0871182795695