Quarter	Percent, Seasonally Adjusted
2001-01-01	75.9865410351256
2001-04-01	75.7933511782692
2001-07-01	75.6767448683287
2001-10-01	75.4714858753640
2002-01-01	75.2692409282640
2002-04-01	75.0584915039889
2002-07-01	74.7521595039631
2002-10-01	74.7022386113327
2003-01-01	74.3611174182965
2003-04-01	74.4272528018567
2003-07-01	74.2210735930531
2003-10-01	73.8830140139919
2004-01-01	73.7591651684701
2004-04-01	73.5483255007658
2004-07-01	73.5421658171234
2004-10-01	73.5841653907294
2005-01-01	73.6858551468294
2005-04-01	74.2452900859593
2005-07-01	74.4356209189452
2005-10-01	74.7682308486139
2006-01-01	75.0473982136981
2006-04-01	75.2277887337170
2006-07-01	75.6555504335152
2006-10-01	76.0035800072700
2007-01-01	76.2697963984884
2007-04-01	76.3560423717134
2007-07-01	76.7407454256635
2007-10-01	76.8065266092861
2008-01-01	77.0275819265278
2008-04-01	76.8954168466476
2008-07-01	76.8765237797015
2008-10-01	76.1644500420693
2009-01-01	75.1670184382326
2009-04-01	74.3115372607320
2009-07-01	73.5916473286019
2009-10-01	73.6685950368922
2010-01-01	73.9080100398584
2010-04-01	74.4766499722796
2010-07-01	74.7230803391957
2010-10-01	75.1596662955858
2011-01-01	75.6575631689926
2011-04-01	75.8462391998326
2011-07-01	75.8863780896887
2011-10-01	75.7796088432520
2012-01-01	75.5363596882259
2012-04-01	75.6722069569518
2012-07-01	75.5287464050000
2012-10-01	75.7801837927394
2013-01-01	76.1430533531527
2013-04-01	76.1149185909940
2013-07-01	76.5480804981941
2013-10-01	76.4257118224596
2014-01-01	76.3696805621408
2014-04-01	76.5188871261626
2014-07-01	76.6479252206976
2014-10-01	76.6443847109259
2015-01-01	76.8513407720332
2015-04-01	76.8292810268999
2015-07-01	76.9760958657432
2015-10-01	77.3805123472893
2016-01-01	77.2679537092085
2016-04-01	77.6167719788054
2016-07-01	77.6151325752510
2016-10-01	77.6562839455007
2017-01-01	77.9320085247523
2017-04-01	78.1973252034240
2017-07-01	78.3774369737235
2017-10-01	78.5011200263465
2018-01-01	78.7247282237655
2018-04-01	78.6459260925296