Quarter	Percent, Seasonally Adjusted
1999-01-01	22.9297810089547
1999-04-01	25.1762379642366
1999-07-01	30.5257617288365
1999-10-01	26.6140815246162
2000-01-01	21.8086022594863
2000-04-01	24.4848289707943
2000-07-01	29.8296713137083
2000-10-01	23.0502216961967
2001-01-01	23.1668225529635
2001-04-01	25.4001454258194
2001-07-01	30.3425730062361
2001-10-01	24.0661969340171
2002-01-01	25.0823317476849
2002-04-01	26.1050318611294
2002-07-01	31.1115310548387
2002-10-01	26.0565570056593
2003-01-01	24.4636127786089
2003-04-01	27.0289719626168
2003-07-01	30.3645843066171
2003-10-01	23.4300298357238
2004-01-01	23.3223086598034
2004-04-01	26.1811623875032
2004-07-01	29.9552299552300
2004-10-01	23.5834424760460
2005-01-01	24.4309976699476
2005-04-01	26.0206389014513
2005-07-01	30.2195089844007
2005-10-01	24.3859024563902
2006-01-01	24.7227840156217
2006-04-01	25.8822036049759
2006-07-01	29.2752123891031
2006-10-01	24.4399602491257
2007-01-01	24.6818357115310
2007-04-01	27.6919644142458
2007-07-01	31.1135610297446
2007-10-01	24.9762506759423
2008-01-01	25.3830417607223
2008-04-01	27.5925648736546
2008-07-01	29.9960765630692
2008-10-01	27.9176286310288
2009-01-01	28.6156927527797
2009-04-01	30.7589539745503
2009-07-01	33.0143190522267
2009-10-01	27.5854409030326
2010-01-01	27.5673812310603
2010-04-01	29.7614520931234
2010-07-01	32.2697316693114
2010-10-01	26.7475291346302
2011-01-01	25.9250194060015
2011-04-01	29.8000630550155
2011-07-01	33.1597603229389
2011-10-01	28.3238213235973
2012-01-01	27.7092856210004
2012-04-01	30.7887138442835
2012-07-01	33.3540282168401
2012-10-01	29.3782656449391
2013-01-01	28.2820578015086
2013-04-01	31.4971457908054
2013-07-01	34.8721795112194
2013-10-01	31.3326601181187
2014-01-01	29.6993312690276
2014-04-01	33.6973878277405
2014-07-01	36.2101404415960
2014-10-01	32.4097530082331
2015-01-01	30.4608345803793
2015-04-01	33.0804148305225
2015-07-01	35.3659298291438
2015-10-01	32.4244787777206
2016-01-01	32.3435805132729
2016-04-01	33.1278430157272
2016-07-01	36.0038375735439
2016-10-01	31.8204025796365
2017-01-01	32.0868482455353
2017-04-01	33.2698992804200
2017-07-01	35.9317270874852
2017-10-01	31.7046396023198
2018-01-01	31.6058268685849
2018-04-01	31.9074495118363