Quarter	Percent, Seasonally Adjusted
2000-01-01	55.4256459877662
2000-04-01	55.1534329888606
2000-07-01	54.8152513011525
2000-10-01	54.5829208676253
2001-01-01	54.1879190785049
2001-04-01	53.6221883095614
2001-07-01	53.1615168332233
2001-10-01	52.4825083985181
2002-01-01	52.0222384785190
2002-04-01	51.6336071912077
2002-07-01	51.2458613668595
2002-10-01	51.0724650525126
2003-01-01	51.0290126269929
2003-04-01	51.2789229312322
2003-07-01	51.1793479137183
2003-10-01	51.2577102451934
2004-01-01	51.4047167909757
2004-04-01	51.4746929372701
2004-07-01	51.6277780444868
2004-10-01	52.1079409477547
2005-01-01	52.3502639830532
2005-04-01	52.4106431877515
2005-07-01	53.0279583093375
2005-10-01	53.3322249874529
2006-01-01	53.3822119349894
2006-04-01	54.0468343264124
2006-07-01	54.9227221189140
2006-10-01	55.5203734221096
2007-01-01	56.1669739497790
2007-04-01	56.8664485981761
2007-07-01	57.1476613140893
2007-10-01	57.9178370551636
2008-01-01	58.7247951348882
2008-04-01	59.0362197962668
2008-07-01	59.4555309505732
2008-10-01	59.7101648678350
2009-01-01	59.4812333296434
2009-04-01	59.3020000933666
2009-07-01	59.3468196880221
2009-10-01	59.2357263473068
2010-01-01	58.6451069050907
2010-04-01	58.9325211898363
2010-07-01	59.1090135331076
2010-10-01	59.1010784744830
2011-01-01	59.2248330196656
2011-04-01	59.3263903968755
2011-07-01	59.3272831705698
2011-10-01	59.4026170645182
2012-01-01	59.5857613889603
2012-04-01	59.7601913039116
2012-07-01	59.6836068370762
2012-10-01	59.7538930355990
2013-01-01	59.5698455482787
2013-04-01	59.8765446528496
2013-07-01	60.1182565878443
2013-10-01	60.4088578660788
2014-01-01	60.9838414551478
2014-04-01	61.4178759464718
2014-07-01	61.9869910469336
2014-10-01	62.3321578832334
2015-01-01	62.4851413058077
2015-04-01	62.5897949279980
2015-07-01	63.0958442139252
2015-10-01	63.5308825490675
2016-01-01	64.0559118243295
2016-04-01	64.2591772950863
2016-07-01	64.5986268969517
2016-10-01	65.1430692187391
2017-01-01	65.6793907810353
2017-04-01	65.9887908779612
2017-07-01	66.2752706003342
2017-10-01	66.5528099286764
2018-01-01	66.9396717475066
2018-04-01	67.3770606312371