Quarter	Percent, Seasonally adjusted
2009-10-01	67.1999649633333
2010-01-01	67.3077027766667
2010-04-01	67.9878677566666
2010-07-01	68.3118156066667
2010-10-01	68.4962706366667
2011-01-01	68.9248848866667
2011-04-01	69.0193739333333
2011-07-01	69.3247810000000
2011-10-01	69.5972341166667
2012-01-01	69.8697293766667
2012-04-01	70.5068618033334
2012-07-01	70.6473112733333
2012-10-01	70.4884477733333
2013-01-01	70.7485940333333
2013-04-01	70.1891971700000
2013-07-01	70.1585092633333
2013-10-01	70.6093452933333
2014-01-01	70.8288829566667
2014-04-01	70.8204679400000
2014-07-01	70.9811619933333
2014-10-01	71.2870197000000
2015-01-01	71.2209014500000
2015-04-01	71.0254106766667
2015-07-01	71.2100846200000