Quarter	Percent
2005-01-01	41.0181764432580
2005-04-01	42.3569144861692
2005-07-01	43.9034293962493
2005-10-01	42.5625004937637
2006-01-01	41.3829662220693
2006-04-01	42.9066010668720
2006-07-01	44.2341353786878
2006-10-01	42.8497243620905
2007-01-01	41.7988599732682
2007-04-01	42.9756659099203
2007-07-01	44.1430479629865
2007-10-01	42.8497989475128
2008-01-01	41.5828871715273
2008-04-01	42.9023622010758
2008-07-01	43.6057066877470
2008-10-01	41.3316069137941
2009-01-01	39.1474475837427
2009-04-01	39.8985616027942
2009-07-01	40.6173418061921
2009-10-01	38.8473532835831
2010-01-01	37.6818752285810
2010-04-01	39.1263544772429
2010-07-01	40.3123060937554
2010-10-01	38.6978231202312
2011-01-01	37.8521502539875
2011-04-01	39.2490412567247
2011-07-01	40.2541565714391
2011-10-01	39.1452106801941
2012-01-01	37.7319978114059
2012-04-01	39.3637562334542
2012-07-01	40.3744647057661
2012-10-01	38.9561558941875
2013-01-01	37.7673388637998
2013-04-01	39.3371064324080
2013-07-01	40.4041718963720
2013-10-01	39.1120656578501
2014-01-01	38.2220282379186
2014-04-01	39.7272171262075
2014-07-01	40.8658308697430
2014-10-01	39.6493201516224
2015-01-01	38.7599995829538
2015-04-01	40.1377959579718
2015-07-01	41.4228184737467
2015-10-01	40.3478153611147
2016-01-01	39.4250558149424
2016-04-01	40.8512332370229
2016-07-01	42.0417500142355
2016-10-01	40.6691650023604
2017-01-01	39.9497553155949
2017-04-01	41.4519056355158
2017-07-01	42.6826291387764
2017-10-01	41.1919176000881
2018-01-01	40.7400317986487
2018-04-01	42.0930440616766