Quarter	Percent, Seasonally Adjusted
2000-01-01	71.3084552008162
2000-04-01	71.1942008108404
2000-07-01	70.6874044675312
2000-10-01	70.5490415069269
2001-01-01	70.0255680701834
2001-04-01	69.3627851500571
2001-07-01	68.9817194834660
2001-10-01	68.3143650616268
2002-01-01	67.7820434819520
2002-04-01	67.3942639810421
2002-07-01	67.2672649148780
2002-10-01	67.1799561663588
2003-01-01	67.3666926731442
2003-04-01	67.5377204416690
2003-07-01	67.5586741591176
2003-10-01	67.5539282188428
2004-01-01	67.8165293297866
2004-04-01	68.0104837196410
2004-07-01	68.2826271587559
2004-10-01	68.7208360690458
2005-01-01	69.0896109243433
2005-04-01	69.3576649173220
2005-07-01	69.6250574240100
2005-10-01	70.1939185061788
2006-01-01	70.4769037817579
2006-04-01	71.3071686952238
2006-07-01	72.1812290492335
2006-10-01	73.0820860265218
2007-01-01	73.8108934368821
2007-04-01	74.6782956911779
2007-07-01	75.0587786004322
2007-10-01	76.1026556156338
2008-01-01	76.8070381793279
2008-04-01	77.2011789365943
2008-07-01	77.6963023903484
2008-10-01	78.1125794195259
2009-01-01	77.6124380017370
2009-04-01	77.6623998608332
2009-07-01	77.6821062987304
2009-10-01	77.4544875399646
2010-01-01	76.6891728050579
2010-04-01	77.2651805645845
2010-07-01	77.3511480012297
2010-10-01	77.3763612724395
2011-01-01	77.3922013991738
2011-04-01	77.2539662242892
2011-07-01	77.1756332137779
2011-10-01	77.2667917685789
2012-01-01	77.3162108468478
2012-04-01	77.3192642956046
2012-07-01	77.1277161703941
2012-10-01	77.0784041770381
2013-01-01	76.7397655801614
2013-04-01	76.8947686540109
2013-07-01	77.0533203313921
2013-10-01	77.1943677242934
2014-01-01	77.7209617638219
2014-04-01	78.1134250354765
2014-07-01	78.7303296050652
2014-10-01	78.9350399350576
2015-01-01	79.1919544727056
2015-04-01	79.2957955263046
2015-07-01	79.5261028115158
2015-10-01	79.9288060613265
2016-01-01	80.0182355227698
2016-04-01	80.2236920356592
2016-07-01	80.4533136814511
2016-10-01	80.6602152834218
2017-01-01	81.1087504530640
2017-04-01	81.3456408261672
2017-07-01	81.4015409697701
2017-10-01	81.6174071595289
2018-01-01	81.8489794948305
2018-04-01	82.2459826321195