Quarter	Percent
2005-01-01	37.4896701423399
2005-04-01	38.7186098503832
2005-07-01	39.8228693697573
2005-10-01	38.8280080284807
2006-01-01	37.7177272619797
2006-04-01	38.9866817335454
2006-07-01	39.8747110637529
2006-10-01	38.9362700534771
2007-01-01	38.1383804583303
2007-04-01	39.0257876699040
2007-07-01	39.9641237383737
2007-10-01	39.1026431532605
2008-01-01	38.0804369720365
2008-04-01	39.0679603548763
2008-07-01	39.4193274217571
2008-10-01	37.9730492602417
2009-01-01	36.4481276876092
2009-04-01	37.0120658571771
2009-07-01	37.4757640428446
2009-10-01	36.2184564420444
2010-01-01	35.2927354557387
2010-04-01	36.0770542324753
2010-07-01	36.9129435313553
2010-10-01	35.5841954631297
2011-01-01	34.8339477002089
2011-04-01	36.0800093473373
2011-07-01	36.6622735655799
2011-10-01	35.9319879891057
2012-01-01	34.7911933354046
2012-04-01	36.1977017865222
2012-07-01	36.8192224544814
2012-10-01	35.8180151132903
2013-01-01	34.8896967359677
2013-04-01	36.2475196768966
2013-07-01	36.8950161999980
2013-10-01	36.1916019867320
2014-01-01	35.2536057125002
2014-04-01	36.6949404406456
2014-07-01	37.2407224888896
2014-10-01	36.4933797158723
2015-01-01	35.7322794172296
2015-04-01	37.1666542892624
2015-07-01	37.9238708904800
2015-10-01	37.3567776179966
2016-01-01	36.5898109756479
2016-04-01	37.6638448827711
2016-07-01	38.6910095075171
2016-10-01	37.5914941224998
2017-01-01	37.0866035435437
2017-04-01	38.1773715035915
2017-07-01	39.2286056118319
2017-10-01	38.2422209768561
2018-01-01	37.7711195001106
2018-04-01	38.9849507462616