Quarter	Percent, Seasonally Adjusted
1999-04-01	91.6421637262048
1999-07-01	91.8707821276870
1999-10-01	92.1038878338525
2000-01-01	92.1621876869433
2000-04-01	92.0012305731417
2000-07-01	92.0483411050082
2000-10-01	91.8258457797439
2001-01-01	91.6612558412714
2001-04-01	91.7946137543636
2001-07-01	92.0394831403265
2001-10-01	91.8298800127585
2002-01-01	91.4586135112111
2002-04-01	91.2979304368060
2002-07-01	90.8910266225357
2002-10-01	91.0813593712876
2003-01-01	91.0878166558740
2003-04-01	90.9671098323651
2003-07-01	90.8726618484669
2003-10-01	91.2756123635353
2004-01-01	91.6930301972674
2004-04-01	91.7690206009496
2004-07-01	91.7522282352876
2004-10-01	91.9539697511603
2005-01-01	91.8372589555993
2005-04-01	92.1104482354546
2005-07-01	92.3111609409476
2005-10-01	92.2479587768357
2006-01-01	92.2071121642024
2006-04-01	92.1908366596430
2006-07-01	92.0474438342602
2006-10-01	92.0857181783306
2007-01-01	91.8900342415005
2007-04-01	91.4866728190007
2007-07-01	91.5506274149580
2007-10-01	91.5295842016058
2008-01-01	91.4800849179981
2008-04-01	91.4467363545519
2008-07-01	91.2852929699456
2008-10-01	91.1942605177910
2009-01-01	90.1875496025564
2009-04-01	90.1367160813527
2009-07-01	89.6615579328526
2009-10-01	89.0925333254709
2010-01-01	89.0079859753708
2010-04-01	89.1364678177918
2010-07-01	89.0070570018425
2010-10-01	88.3903980403933
2011-01-01	88.2285930352080
2011-04-01	88.4997542453900
2011-07-01	88.2288817613142
2011-10-01	88.4422534968920
2012-01-01	88.9158520050665
2012-04-01	88.5083195081528
2012-07-01	88.8051141656499
2012-10-01	88.2876077934922
2013-01-01	88.3981080964177
2013-04-01	89.0205920978883
2013-07-01	88.9852209688042
2013-10-01	88.9630320501590
2014-01-01	89.3931177000823
2014-04-01	89.4716905898050
2014-07-01	89.3513814632233
2014-10-01	89.5566309073799
2015-01-01	89.3888393320956
2015-04-01	89.7511220425141
2015-07-01	89.5975026251787
2015-10-01	89.4254887748300
2016-01-01	89.1821476992982
2016-04-01	89.0586741024206
2016-07-01	89.3357570267911
2016-10-01	89.4002902360435
2017-01-01	89.8748998827498
2017-04-01	89.4068152252929
2017-07-01	90.5768743038979
2017-10-01	90.3907413308480
2018-01-01	90.2742404159157
2018-04-01	89.5930483534068