Quarter	Percent, Seasonally Adjusted
1999-01-01	9.85069768007765
1999-04-01	9.14410026192163
1999-07-01	8.89979967487354
1999-10-01	8.72191975493929
2000-01-01	8.27116106214313
2000-04-01	8.01071070799782
2000-07-01	7.78018709769865
2000-10-01	7.74040787549447
2001-01-01	6.47335894206945
2001-04-01	6.25462210880523
2001-07-01	6.26635109512142
2001-10-01	6.40654393061327
2002-01-01	6.78404282973894
2002-04-01	6.84418714435788
2002-07-01	7.19950554477032
2002-10-01	7.17490989370953
2003-01-01	7.09505270729121
2003-04-01	7.08980213099930
2003-07-01	7.23663778822778
2003-10-01	7.31749070263620
2004-01-01	7.21361004325091
2004-04-01	7.13129742496820
2004-07-01	7.22246381057099
2004-10-01	6.60649916908514
2005-01-01	6.31426726125476
2005-04-01	6.21144189092895
2005-07-01	5.71980753500358
2005-10-01	5.60409331404746
2006-01-01	5.47938425049122
2006-04-01	5.44911735800061
2006-07-01	5.32333299713594
2006-10-01	5.25866326761203
2007-01-01	5.31770683888289
2007-04-01	5.21053178160557
2007-07-01	5.41329446472679
2007-10-01	5.87092667279488
2008-01-01	6.50786178121800
2008-04-01	7.97133596044839
2008-07-01	9.38785875296994
2008-10-01	11.70623379543320
2009-01-01	15.00279985406360
2009-04-01	16.08216282093250
2009-07-01	16.50164575175990
2009-10-01	17.00282763666900
2010-01-01	17.61446921843200
2010-04-01	18.03489192967020
2010-07-01	18.01177114005100
2010-10-01	18.03255787766170
2011-01-01	18.24344024321710
2011-04-01	18.88039285525430
2011-07-01	19.77129827175460
2011-10-01	20.54222478782760
2012-01-01	21.47757010241840
2012-04-01	23.12686253466990
2012-07-01	23.63422373430120
2012-10-01	23.80019183171810
2013-01-01	23.95932908838770
2013-04-01	23.94943007497900
2013-07-01	24.13549008192500
2013-10-01	23.18896479784060
2014-01-01	22.71432227397900
2014-04-01	22.11946114115220
2014-07-01	21.09359764757260
2014-10-01	20.85680172924910
2015-01-01	20.14929265430040
2015-04-01	19.35700804247370
2015-07-01	18.58114156562500
2015-10-01	17.64912660931340
2016-01-01	17.05518172138060
2016-04-01	16.73708534918730
2016-07-01	16.17633950104200
2016-10-01	15.36674856643700
2017-01-01	14.83634543949290
2017-04-01	14.03928658517740
2017-07-01	13.44250826791860
2017-10-01	13.24532232938650
2018-01-01	13.04484986845990
2018-04-01	12.17408561461780
2018-07-01	12.02831518609410