Quarter	Percent, Seasonally Adjusted
2005-01-01	75.4168930648141
2005-04-01	75.5736397747329
2005-07-01	75.5555624156027
2005-10-01	75.9204056221210
2006-01-01	76.1697999585556
2006-04-01	76.2939151834947
2006-07-01	76.3701876011850
2006-10-01	76.4157187706748
2007-01-01	76.3597328768582
2007-04-01	76.4605027738322
2007-07-01	76.8601950350271
2007-10-01	76.9756109201344
2008-01-01	77.0561170003002
2008-04-01	77.1546912784283
2008-07-01	77.4282555237767
2008-10-01	77.4550077825535
2009-01-01	77.5244305622891
2009-04-01	77.6227371575268
2009-07-01	77.7638408673777
2009-10-01	77.8695330392988
2010-01-01	78.0290242416005
2010-04-01	78.2609934167410
2010-07-01	78.1674873237797
2010-10-01	78.2515460745874
2011-01-01	78.2861392446060
2011-04-01	78.3254172706911
2011-07-01	78.3661990931025
2011-10-01	78.6160813605166
2012-01-01	78.8767044888434
2012-04-01	78.9347493283621
2012-07-01	79.0543890396641
2012-10-01	79.1603234055790
2013-01-01	79.1860908196544
2013-04-01	79.2886897494496
2013-07-01	79.2087288766515
2013-10-01	79.2641235105851
2014-01-01	79.4780043150337
2014-04-01	79.3698123261236
2014-07-01	79.4378943633656
2014-10-01	79.5483186537043
2015-01-01	79.4085543057805
2015-04-01	79.5040693827783
2015-07-01	79.3288501084744
2015-10-01	79.4569921338429
2016-01-01	79.4389274853450
2016-04-01	79.5202596463668
2016-07-01	79.6329558472378
2016-10-01	79.6268404407641
2017-01-01	79.5922792373334
2017-04-01	79.7429455342345
2017-07-01	79.8594609657427
2017-10-01	79.8029680200062
2018-01-01	79.9538928975152
2018-04-01	80.1264299045997