Quarter	Percent
2005-01-01	51.0567218116680
2005-04-01	50.0374477718865
2005-07-01	49.5325745548002
2005-10-01	49.2937351744031
2006-01-01	48.9376358208841
2006-04-01	48.7670075242608
2006-07-01	48.0659409905378
2006-10-01	47.9438579679276
2007-01-01	48.3081429390546
2007-04-01	47.6124454716821
2007-07-01	48.0304853835083
2007-10-01	46.9640437782207
2008-01-01	47.5385027558088
2008-04-01	47.0552480750822
2008-07-01	47.9209571350692
2008-10-01	47.9224444915317
2009-01-01	47.6374764906775
2009-04-01	47.1843127227097
2009-07-01	45.1697107705696
2009-10-01	45.9191568649393
2010-01-01	47.1071247064927
2010-04-01	45.8700673745991
2010-07-01	46.5550265516417
2010-10-01	47.6142894540513
2011-01-01	47.3914503600042
2011-04-01	46.2392860554084
2011-07-01	46.0718576734806
2011-10-01	44.7521679722857
2012-01-01	45.7788066056259
2012-04-01	44.2502672659433
2012-07-01	44.3411596535270
2012-10-01	44.8259009939379
2013-01-01	45.4832722748507
2013-04-01	44.1278955751160
2013-07-01	44.1599672255494
2013-10-01	44.0798594146625
2014-01-01	45.3979280870514
2014-04-01	45.1519035982838
2014-07-01	45.6397571934797
2014-10-01	45.4893071727953
2015-01-01	45.5974263362540
2015-04-01	44.7788180686611
2015-07-01	44.9503445551125
2015-10-01	43.7509475403245
2016-01-01	44.6274748567639
2016-04-01	44.5140469460375
2016-07-01	44.3184688084025
2016-10-01	44.6014907219269
2017-01-01	44.8692324735069
2017-04-01	44.6689534012789
2017-07-01	45.0750261932346
2017-10-01	44.3556601999875
2018-01-01	44.8474537998634
2018-04-01	43.8046122600601