Quarter	Percent, Seasonally Adjusted
1978-04-01	76.1741428666667
1978-07-01	75.9704433333333
1978-10-01	76.3528441000000
1979-01-01	76.7928916333333
1979-04-01	76.7253331333334
1979-07-01	76.8540938333334
1979-10-01	77.2870830333333
1980-01-01	77.4347356333333
1980-04-01	78.1768193000000
1980-07-01	78.1728011000000
1980-10-01	78.4438632333333
1981-01-01	78.9749433666667
1981-04-01	78.8935130000000
1981-07-01	78.4536628000000
1981-10-01	78.1538374000000
1982-01-01	78.4191564666666
1982-04-01	77.9042277666667
1982-07-01	77.7983082333333
1982-10-01	78.0106254666667
1983-01-01	76.9842399000000
1983-04-01	76.8054316666666
1983-07-01	76.4008303333333
1983-10-01	76.3702976666667
1984-01-01	75.7636026000000
1984-04-01	76.0124431666667
1984-07-01	76.1139444666667
1984-10-01	75.1669998000000
1985-01-01	75.4724185666667
1985-04-01	75.9104995333333
1985-07-01	75.7358061000000
1985-10-01	75.1128946666666
1986-01-01	76.0375247000000
1986-04-01	76.3612968666666
1986-07-01	75.6597047000000
1986-10-01	75.4062261333333
1987-01-01	74.9681453333334
1987-04-01	74.8991699333334
1987-07-01	74.8624163666667
1987-10-01	74.2901879000000
1988-01-01	74.9109054333333
1988-04-01	74.7890788000000
1988-07-01	74.3964385000000
1988-10-01	74.2302279333333
1989-01-01	75.4450531000000
1989-04-01	75.1765519000000
1989-07-01	75.8157048333333
1989-10-01	74.9862630333334
1990-01-01	75.2045069333333
1990-04-01	75.3656914000000
1990-07-01	75.4282682000000
1990-10-01	75.2477097000000
1991-01-01	73.4489737000000
1991-04-01	73.0559500333333
1991-07-01	71.7047876666666
1991-10-01	71.9787121666667
1992-01-01	72.0762795666666
1992-04-01	72.3381589000000
1992-07-01	72.7725405666667
1992-10-01	71.8355913666666
1993-01-01	71.9504056000000
1993-04-01	71.2840958333333
1993-07-01	71.4775944333334
1993-10-01	71.9675690333333
1994-01-01	72.9849600666667
1994-04-01	72.2995292666666
1994-07-01	72.8903859333333
1994-10-01	73.5229375666667
1995-01-01	73.5137609000000
1995-04-01	73.7571288333334
1995-07-01	73.9488377333333
1995-10-01	73.5382437000000
1996-01-01	73.5549872666667
1996-04-01	73.7765776333333
1996-07-01	73.8888374666666
1996-10-01	73.9548132666667
1997-01-01	73.2899828000000
1997-04-01	72.7530366333334
1997-07-01	71.4572494000000
1997-10-01	72.5067251333334
1998-01-01	72.3059293333334
1998-04-01	72.0904488333333
1998-07-01	71.9646298000000
1998-10-01	71.8504170000000
1999-01-01	71.3415411333334
1999-04-01	71.7506947000000
1999-07-01	72.0066986666667
1999-10-01	72.0761642000000
2000-01-01	71.9231165333334
2000-04-01	72.0457979333333
2000-07-01	71.7770406000000
2000-10-01	71.6133293666666
2001-01-01	71.4735581000000
2001-04-01	72.3256384333334
2001-07-01	72.9939177000000
2001-10-01	72.4896101000000
2002-01-01	71.8542029666666
2002-04-01	71.3495240333333
2002-07-01	71.8358108333333
2002-10-01	71.6923352333333
2003-01-01	71.5817485333334
2003-04-01	71.0324260333334
2003-07-01	71.0770402333333
2003-10-01	71.9855683333333
2004-01-01	71.3742260666667
2004-04-01	71.3003887666667
2004-07-01	70.7578599333333
2004-10-01	71.4090472666666
2005-01-01	71.8319676000000
2005-04-01	72.5405332000000
2005-07-01	72.1839056000000
2005-10-01	71.6145359333333
2006-01-01	71.8684811333333
2006-04-01	71.9572725666666
2006-07-01	72.3051953666667
2006-10-01	72.1359582000000
2007-01-01	71.6358031333334
2007-04-01	71.7255858666667
2007-07-01	71.4644746333334
2007-10-01	72.4514021666667
2008-01-01	72.5867145666667
2008-04-01	72.4809907666667
2008-07-01	71.6092097000000
2008-10-01	71.2226917666667
2009-01-01	71.0362902000000
2009-04-01	70.9545187333333
2009-07-01	70.0342135333334
2009-10-01	69.7307132666667
2010-01-01	69.8041841333333
2010-04-01	69.7337292000000
2010-07-01	69.1884840000000
2010-10-01	69.7339417000000
2011-01-01	69.1553167666667
2011-04-01	68.4587014000000
2011-07-01	69.1891708666667
2011-10-01	68.4022019333333
2012-01-01	68.2171569666667
2012-04-01	68.1856028333333
2012-07-01	68.3585445000000
2012-10-01	68.2685798000000
2013-01-01	67.9732226000000
2013-04-01	67.7687918666667
2013-07-01	67.5069466666667
2013-10-01	66.3527373333333
2014-01-01	66.3226191666666
2014-04-01	66.5043110000000
2014-07-01	66.5454208666667
2014-10-01	67.8100251666667
2015-01-01	68.2006239333333
2015-04-01	67.5690506333333
2015-07-01	67.3700352000000
2015-10-01	67.9832303666667
2016-01-01	67.6597702000000
2016-04-01	67.0462311666666
2016-07-01	67.2888211666667
2016-10-01	66.6525443000000
2017-01-01	67.2039745000000
2017-04-01	67.0738612000000
2017-07-01	67.7708683666667
2017-10-01	67.3383624000000
2018-01-01	68.0097890666667
2018-04-01	67.9878923666666
2018-07-01	68.1382499000000