Quarter	Percent, Seasonally Adjusted
2000-01-01	76.0833180592939
2000-04-01	76.0414465855429
2000-07-01	76.5007368203689
2000-10-01	76.8251468434444
2001-01-01	78.7984865952064
2001-04-01	76.8993709817106
2001-07-01	77.6872946717303
2001-10-01	77.9330310357510
2002-01-01	78.4831260864137
2002-04-01	79.0375450035004
2002-07-01	80.6456051338233
2002-10-01	78.3572081869138
2003-01-01	77.7068375203154
2003-04-01	77.4739729153228
2003-07-01	78.9518436215420
2003-10-01	78.0485469309681
2004-01-01	78.2323377646202
2004-04-01	78.8737700609891
2004-07-01	78.9194744456123
2004-10-01	78.4689994771657
2005-01-01	78.8946428928099
2005-04-01	78.5151142156503
2005-07-01	78.1375783398458
2005-10-01	78.5083834576136
2006-01-01	79.7981660839601
2006-04-01	79.8120893626824
2006-07-01	79.3997569250222
2006-10-01	79.8619301922576
2007-01-01	79.5363965594808
2007-04-01	79.9940340735818
2007-07-01	79.4916705311192
2007-10-01	78.6466492336310
2008-01-01	78.6251967233348
2008-04-01	78.3039535905497
2008-07-01	78.4457790697532
2008-10-01	78.1358740770457
2009-01-01	77.3364690256493
2009-04-01	77.1807219951065
2009-07-01	76.8856268446742
2009-10-01	75.9843721246824
2010-01-01	75.4460652348247
2010-04-01	74.5029125059720
2010-07-01	73.7089232723831
2010-10-01	72.8306831928485
2011-01-01	71.8012229953675
2011-04-01	71.1728668659229
2011-07-01	70.7716452028431
2011-10-01	70.1713685133238
2012-01-01	69.8196008340620
2012-04-01	69.0852879796072
2012-07-01	68.2447709816240
2012-10-01	67.6760472836742
2013-01-01	67.5089595808326
2013-04-01	66.8007989667135
2013-07-01	66.6092933252874
2013-10-01	65.8260114079358
2014-01-01	65.0876078773926
2014-04-01	65.1993694971045
2014-07-01	64.8456448860423
2014-10-01	64.2605465812073
2015-01-01	63.4642748804942
2015-04-01	63.4435940114028
2015-07-01	62.1735618882090
2015-10-01	61.5887594742543
2016-01-01	61.7876569362375
2016-04-01	61.5038027733511
2016-07-01	60.7791542657762
2016-10-01	59.9320294336798
2017-01-01	59.6817777318111
2017-04-01	59.0624949713194
2017-07-01	59.2239554423053
2017-10-01	59.8833162677794
2018-01-01	59.5665354757905
2018-04-01	59.7388524856806