Quarter	Percent, Seasonally Adjusted
2000-01-01	17.4475848306900
2000-04-01	17.4815440780166
2000-07-01	17.8315999629406
2000-10-01	17.7088173283221
2001-01-01	17.8824777759583
2001-04-01	18.0145479583603
2001-07-01	18.0999180565418
2001-10-01	18.2522106384845
2002-01-01	18.4289834339339
2002-04-01	18.5312542367416
2002-07-01	18.4638079458866
2002-10-01	18.6647691556970
2003-01-01	18.6168008499758
2003-04-01	18.6514219854608
2003-07-01	18.5250979788765
2003-10-01	18.5945708873433
2004-01-01	18.1998063848839
2004-04-01	18.2518790985237
2004-07-01	18.2265881016695
2004-10-01	17.8626249619203
2005-01-01	17.6168816350253
2005-04-01	17.3323543559712
2005-07-01	17.4210494136687
2005-10-01	17.4400357766906
2006-01-01	18.0853781390942
2006-04-01	18.2449445208534
2006-07-01	18.3150716301693
2006-10-01	18.3597198685178
2007-01-01	18.3643228448304
2007-04-01	18.2861426609274
2007-07-01	18.4516615634860
2007-10-01	17.9371437347280
2008-01-01	17.8945731593668
2008-04-01	17.6544948148107
2008-07-01	17.3771130995826
2008-10-01	17.2142235095725
2009-01-01	17.0373768013945
2009-04-01	16.7748374353973
2009-07-01	16.3525778339703
2009-10-01	16.3625111626839
2010-01-01	16.2128181816535
2010-04-01	15.8274421762695
2010-07-01	15.7347368606777
2010-10-01	15.6488549258250
2011-01-01	15.7945499693744
2011-04-01	15.8316240159803
2011-07-01	15.8845668167876
2011-10-01	15.6263542228673
2012-01-01	15.4950840717028
2012-04-01	15.3757315699894
2012-07-01	15.3085933342557
2012-10-01	15.3163581601620
2013-01-01	15.5388569386117
2013-04-01	15.3369975281652
2013-07-01	15.2692835045924
2013-10-01	15.3592617910960
2014-01-01	15.0148409557629
2014-04-01	14.9702258098813
2014-07-01	14.7892841015413
2014-10-01	14.8010964991172
2015-01-01	14.7691204941927
2015-04-01	14.9737682659531
2015-07-01	14.9119749110478
2015-10-01	14.7811413328424
2016-01-01	14.9978692533027
2016-04-01	15.0333403149042
2016-07-01	15.1166922418354
2016-10-01	15.1597049576274
2017-01-01	14.9899329457750
2017-04-01	14.9684555600866
2017-07-01	15.1108144762238
2017-10-01	15.1341662249628
2018-01-01	15.1291986987377
2018-04-01	14.9333679288455