Quarter	Percent
2005-01-01	67.5284048090151
2005-04-01	67.3324676157496
2005-07-01	67.1017370282849
2005-10-01	68.1874505352189
2006-01-01	68.2921102314734
2006-04-01	67.5929324419129
2006-07-01	67.8799449173761
2006-10-01	69.7293678275152
2007-01-01	69.7489085422018
2007-04-01	69.2432104991451
2007-07-01	68.7688905655651
2007-10-01	70.1983048374948
2008-01-01	70.3883684445764
2008-04-01	69.8525270986100
2008-07-01	70.0833027730819
2008-10-01	71.0598480249524
2009-01-01	69.4707942932217
2009-04-01	68.4299458550908
2009-07-01	68.6400471620559
2009-10-01	70.2324650487020
2010-01-01	70.5441827584924
2010-04-01	71.4550848281490
2010-07-01	72.4915010277998
2010-10-01	73.7021323033861
2011-01-01	73.5538702967476
2011-04-01	74.3267326588395
2011-07-01	73.9714753114952
2011-10-01	75.0898186116421
2012-01-01	74.5412720089387
2012-04-01	74.1496507037798
2012-07-01	74.4549923412126
2012-10-01	75.0000196263346
2013-01-01	75.0079309167903
2013-04-01	75.0616703334404
2013-07-01	74.9368479153732
2013-10-01	75.6758336565654
2014-01-01	74.8399510045171
2014-04-01	74.7790925233776
2014-07-01	74.4932372240375
2014-10-01	75.4326777058433
2015-01-01	74.4772499946487
2015-04-01	74.6328014809514
2015-07-01	74.9127919295630
2015-10-01	75.6510866382922
2016-01-01	74.6453704356814
2016-04-01	74.6287926946760
2016-07-01	74.6973158899037
2016-10-01	75.3523810322490
2017-01-01	74.2959302592374
2017-04-01	74.7893949571823
2017-07-01	74.7995242157870
2017-10-01	75.6608395581751
2018-01-01	74.7984101376956
2018-04-01	75.1605551875094
2018-07-01	74.5643952190170