Quarter	Percent, Seasonally Adjusted
1999-04-01	6.03642745399123
1999-07-01	5.58904931359922
1999-10-01	5.20489101312978
2000-01-01	4.88919840353261
2000-04-01	4.47803044127818
2000-07-01	4.25887590674099
2000-10-01	4.05223639593768
2001-01-01	3.82434422998722
2001-04-01	3.91721286040978
2001-07-01	4.16437500397755
2001-10-01	4.21689976701705
2002-01-01	4.59442074719470
2002-04-01	4.68597153239193
2002-07-01	4.69189660314593
2002-10-01	4.93537235829112
2003-01-01	5.02388439620842
2003-04-01	4.94842265973080
2003-07-01	5.20598450416083
2003-10-01	4.99191986044683
2004-01-01	4.93311581328584
2004-04-01	5.01966453936635
2004-07-01	4.84922446227644
2004-10-01	4.78829842200187
2005-01-01	4.66907345345000
2005-04-01	4.61106877107461
2005-07-01	4.59200920426204
2005-10-01	4.55020999205267
2006-01-01	4.50194945614438
2006-04-01	4.60254069701286
2006-07-01	4.83523662271555
2006-10-01	4.39589811420590
2007-01-01	4.86657497249235
2007-04-01	4.97944322371297
2007-07-01	4.98865172515034
2007-10-01	5.32975830687415
2008-01-01	5.83179808476401
2008-04-01	6.63257941673877
2008-07-01	8.22711512364380
2008-10-01	9.87650860300216
2009-01-01	12.75874352697270
2009-04-01	15.01516741472490
2009-07-01	16.06108985210340
2009-10-01	16.79396639869150
2010-01-01	16.88199004415950
2010-04-01	16.94921539907250
2010-07-01	17.17554479313290
2010-10-01	17.61330861046100
2011-01-01	17.59049974728950
2011-04-01	17.65503958113000
2011-07-01	17.94960235233200
2011-10-01	17.94421324643130
2012-01-01	18.23719076403290
2012-04-01	18.03532970706980
2012-07-01	17.71233883238480
2012-10-01	17.08032201884320
2013-01-01	15.89837277185410
2013-04-01	15.43028991517220
2013-07-01	14.63803114689660
2013-10-01	13.73764482457760
2014-01-01	13.63284900936390
2014-04-01	13.10824714939170
2014-07-01	12.46919765106120
2014-10-01	11.78705431602260
2015-01-01	11.39261103317710
2015-04-01	10.80364864530840
2015-07-01	10.48454116758630
2015-10-01	10.53196864056360
2016-01-01	9.94071215473062
2016-04-01	9.46993380296402
2016-07-01	8.93159666895592
2016-10-01	7.96788344257090
2017-01-01	7.66972681742519
2017-04-01	7.25817810999679
2017-07-01	6.87562694369676
2017-10-01	6.62835390661285
2018-01-01	6.16022160539915
2018-04-01	6.14487501196328