Quarter	Percent
2005-01-01	74.1259952903373
2005-04-01	75.2569830656752
2005-07-01	76.9772794889059
2005-10-01	75.9537654795999
2006-01-01	74.5662600434896
2006-04-01	74.9156547831900
2006-07-01	76.8285642384498
2006-10-01	76.8881002550738
2007-01-01	74.4603980664114
2007-04-01	76.8250171380231
2007-07-01	75.6933496817890
2007-10-01	73.8778561212095
2008-01-01	72.8788207240408
2008-04-01	73.6881470400924
2008-07-01	74.0137071832029
2008-10-01	74.3150261928462
2009-01-01	73.3977000094800
2009-04-01	74.1990376716348
2009-07-01	74.0494393848583
2009-10-01	73.3309125240568
2010-01-01	68.2452560556831
2010-04-01	70.0251962329090
2010-07-01	70.6403588230138
2010-10-01	69.4566074087048
2011-01-01	68.1559364279012
2011-04-01	68.8218286428291
2011-07-01	67.6359712125300
2011-10-01	67.2899826789838
2012-01-01	67.2835898434963
2012-04-01	69.2877237334446
2012-07-01	68.4568382458513
2012-10-01	68.5592293896685
2013-01-01	67.0280065607813
2013-04-01	69.6885527988427
2013-07-01	70.3230384936594
2013-10-01	68.6731471595522
2014-01-01	67.7339118311230
2014-04-01	70.9674339232092
2014-07-01	69.5357372279806
2014-10-01	69.5170857250116
2015-01-01	68.5769127183946
2015-04-01	70.1857486673544
2015-07-01	70.7311890809450
2015-10-01	71.0408242571570
2016-01-01	70.1425860861718
2016-04-01	71.5803057558562
2016-07-01	71.4542219818854
2016-10-01	69.9218911714469
2017-01-01	70.0153646040754
2017-04-01	70.0588897560215
2017-07-01	70.5717015346127
2017-10-01	70.0852567475091
2018-01-01	68.1164649746675
2018-04-01	70.8003049907593
2018-07-01	71.5112365785948