Quarter	Percent
2005-01-01	65.1297523839468
2005-04-01	66.1534970919349
2005-07-01	66.6869025961906
2005-10-01	66.2499523641586
2006-01-01	65.4786497291351
2006-04-01	66.5778229379002
2006-07-01	67.0146928955898
2006-10-01	66.6983971878437
2007-01-01	65.8307442003815
2007-04-01	66.8978971539316
2007-07-01	67.1831811912657
2007-10-01	66.7192118003781
2008-01-01	65.8751044763894
2008-04-01	66.7235117238190
2008-07-01	66.8011088501314
2008-10-01	65.6874618415405
2009-01-01	63.8452757653203
2009-04-01	64.1162077436843
2009-07-01	64.1681454995968
2009-10-01	63.5904136521017
2010-01-01	62.6662544510287
2010-04-01	63.8409546223410
2010-07-01	64.1495190039931
2010-10-01	63.5990916020308
2011-01-01	63.0007179179608
2011-04-01	63.9515458507820
2011-07-01	64.2387185572255
2011-10-01	63.8460002281918
2012-01-01	62.9638556052974
2012-04-01	63.9752952074496
2012-07-01	64.2285242086820
2012-10-01	63.7331651156068
2013-01-01	62.7766170704816
2013-04-01	63.7832296927432
2013-07-01	63.9966248629277
2013-10-01	63.6450023894677
2014-01-01	62.9421971843376
2014-04-01	63.8965898908952
2014-07-01	64.2882526309121
2014-10-01	63.8958129323761
2015-01-01	63.3476083058099
2015-04-01	64.1727806191846
2015-07-01	64.5461439663766
2015-10-01	64.2122355502436
2016-01-01	63.7438267204988
2016-04-01	64.6473106182846
2016-07-01	64.9297493856667
2016-10-01	64.5786234050082
2017-01-01	64.0917559466388
2017-04-01	65.0435264792719
2017-07-01	65.4157006362776
2017-10-01	65.0194363740613
2018-01-01	64.6592547156838
2018-04-01	65.4499829289341