Quarter	Percent
2005-01-01	75.1735279551965
2005-04-01	76.0146762366442
2005-07-01	76.0812237535572
2005-10-01	76.1762640342017
2006-01-01	75.7723321953310
2006-04-01	76.6844022067989
2006-07-01	76.7429103410624
2006-10-01	76.9547671055200
2007-01-01	76.4228286912374
2007-04-01	77.2567738286988
2007-07-01	77.1654756349635
2007-10-01	77.3230914284451
2008-01-01	76.7374821946140
2008-04-01	77.3898021301138
2008-07-01	77.1289189365381
2008-10-01	76.7980449179789
2009-01-01	75.2322549928909
2009-04-01	75.4600635165823
2009-07-01	75.2755541622560
2009-10-01	75.2737693098640
2010-01-01	74.5145677264788
2010-04-01	75.4570629888381
2010-07-01	75.3420709250036
2010-10-01	75.3533187766940
2011-01-01	74.9333901923708
2011-04-01	75.7315325244480
2011-07-01	75.5630571191604
2011-10-01	75.6599082046609
2012-01-01	75.0291951945842
2012-04-01	75.8577018706304
2012-07-01	75.7345647246904
2012-10-01	75.7553228218043
2013-01-01	75.0135931647204
2013-04-01	75.8296468310196
2013-07-01	75.7233806341410
2013-10-01	75.9036342617666
2014-01-01	75.4444183758006
2014-04-01	76.1379429964345
2014-07-01	76.1012280669422
2014-10-01	76.3446098488848
2015-01-01	75.9583730880634
2015-04-01	76.6340793697083
2015-07-01	76.6112001183942
2015-10-01	76.9050456128226
2016-01-01	76.6108717660276
2016-04-01	77.2324291287242
2016-07-01	77.2451288429208
2016-10-01	77.4217212117553
2017-01-01	77.1199714490754
2017-04-01	77.8687010493932
2017-07-01	77.8983732669720
2017-10-01	78.1906682280261
2018-01-01	77.9357584863609
2018-04-01	78.5624857582396