Quarter	Percent, Seasonally Adjusted
1978-04-01	63.5441911333333
1978-07-01	63.5577953000000
1978-10-01	63.2806786666667
1979-01-01	63.4479421000000
1979-04-01	63.3855295333333
1979-07-01	63.6498558666667
1979-10-01	64.4869290666667
1980-01-01	65.0509266666666
1980-04-01	66.1342240000000
1980-07-01	66.6747731333334
1980-10-01	66.5897819333333
1981-01-01	65.4756555333333
1981-04-01	65.2977981666667
1981-07-01	65.7211149333333
1981-10-01	65.1524428333333
1982-01-01	65.7576530333333
1982-04-01	65.5006422666667
1982-07-01	64.6101990333333
1982-10-01	65.4134033333333
1983-01-01	64.6730201666667
1983-04-01	65.6914672666667
1983-07-01	66.1137985333333
1983-10-01	66.6809120333333
1984-01-01	66.1037906000000
1984-04-01	66.7097510666667
1984-07-01	65.8505596000000
1984-10-01	65.5837583666666
1985-01-01	65.9723891666667
1985-04-01	66.6932474000000
1985-07-01	66.9890336000000
1985-10-01	67.0763482333333
1986-01-01	67.3272886000000
1986-04-01	68.3078532333333
1986-07-01	67.7169985333333
1986-10-01	68.1469484333333
1987-01-01	67.7722682333333
1987-04-01	67.4943907000000
1987-07-01	67.0012669000000
1987-10-01	67.8700603000000
1988-01-01	67.4781497000000
1988-04-01	67.4772117333333
1988-07-01	66.6886764333333
1988-10-01	67.1191118000000
1989-01-01	68.8482503333333
1989-04-01	68.7124601666667
1989-07-01	68.6918692333333
1989-10-01	68.3808732666667
1990-01-01	68.9090330000000
1990-04-01	68.7703386333333
1990-07-01	69.2944201333333
1990-10-01	68.4084203666667
1991-01-01	67.2086957000000
1991-04-01	66.9703870333333
1991-07-01	66.3917775333333
1991-10-01	66.1333880333334
1992-01-01	65.9148555333333
1992-04-01	66.2223293666667
1992-07-01	66.9962149000000
1992-10-01	66.6693779000000
1993-01-01	66.1551937000000
1993-04-01	65.0716394666667
1993-07-01	65.3817098000000
1993-10-01	66.2896791000000
1994-01-01	67.7312045666667
1994-04-01	67.6142415333333
1994-07-01	68.5777497000000
1994-10-01	68.3781414000000
1995-01-01	69.3306074000000
1995-04-01	69.5873212000000
1995-07-01	69.4240653000000
1995-10-01	69.6964636333333
1996-01-01	69.2596873333333
1996-04-01	69.9195430333334
1996-07-01	69.7915042666667
1996-10-01	68.8964175000000
1997-01-01	68.1151955666667
1997-04-01	67.3765368333333
1997-07-01	67.0762338333333
1997-10-01	67.3468697333333
1998-01-01	67.2206270000000
1998-04-01	67.1472914666666
1998-07-01	67.7132197333333
1998-10-01	68.2530003333333
1999-01-01	68.0804664666667
1999-04-01	67.7369707333333
1999-07-01	67.7656590666667
1999-10-01	68.0846448333333
2000-01-01	67.7725507333333
2000-04-01	68.3610292333333
2000-07-01	69.1097951333333
2000-10-01	68.3590978000000
2001-01-01	68.5203728333333
2001-04-01	69.5635807000000
2001-07-01	69.1136064666667
2001-10-01	69.1569476666667
2002-01-01	68.0922546666667
2002-04-01	67.4076983000000
2002-07-01	68.3955308333333
2002-10-01	68.8660835000000
2003-01-01	69.4193600666667
2003-04-01	68.4999371666666
2003-07-01	68.7055381000000
2003-10-01	69.3538772666667
2004-01-01	69.3133365000000
2004-04-01	69.1222576666666
2004-07-01	68.5401762000000
2004-10-01	69.2655542333333
2005-01-01	69.4689417666666
2005-04-01	69.6448628666667
2005-07-01	69.6562769333333
2005-10-01	69.3980626000000
2006-01-01	69.1649350000000
2006-04-01	69.3514779333334
2006-07-01	70.0560742000000
2006-10-01	69.3395188000000
2007-01-01	69.3073233666667
2007-04-01	69.6553961333334
2007-07-01	69.7652289000000
2007-10-01	70.0328742666667
2008-01-01	69.6999114666667
2008-04-01	70.2722876000000
2008-07-01	69.6167157333333
2008-10-01	68.4420446000000
2009-01-01	68.1534520000000
2009-04-01	67.4723920333333
2009-07-01	67.1244335000000
2009-10-01	68.2058906333333
2010-01-01	67.5700743000000
2010-04-01	67.0587100666667
2010-07-01	67.0039385333334
2010-10-01	67.2476194666667
2011-01-01	68.0734748666667
2011-04-01	67.3489140000000
2011-07-01	67.5933315666667
2011-10-01	66.8329920000000
2012-01-01	67.3019976000000
2012-04-01	67.4964870000000
2012-07-01	66.1618253000000
2012-10-01	66.1513238666666
2013-01-01	66.2495595000000
2013-04-01	65.9757059333333
2013-07-01	66.8626620666666
2013-10-01	66.0161696000000
2014-01-01	66.1738787000000
2014-04-01	66.0549618000000
2014-07-01	66.2195622666667
2014-10-01	66.3156869000000
2015-01-01	66.0101376000000
2015-04-01	66.6301883333333
2015-07-01	66.9488693333333
2015-10-01	67.1261097000000
2016-01-01	66.1639261333333
2016-04-01	67.1838736666667
2016-07-01	66.1882570000000
2016-10-01	65.9631999000000
2017-01-01	65.9455087333334
2017-04-01	65.5173532000000
2017-07-01	66.8200951666667
2017-10-01	67.0711551666667
2018-01-01	67.7444096000000
2018-04-01	67.7083547666667
2018-07-01	66.9788978333333