Quarter	Percent
1998-01-01	40.6159897653281
1998-04-01	41.3529243392806
1998-07-01	41.0114180057566
1998-10-01	41.2782398507832
1999-01-01	41.6371597182562
1999-04-01	42.1313907486306
1999-07-01	42.1968171977667
1999-10-01	42.0357169940093
2000-01-01	42.5274725274725
2000-04-01	42.8025284832885
2000-07-01	43.0819808415365
2000-10-01	42.9912886073085
2001-01-01	43.2959210575873
2001-04-01	43.4009818120263
2001-07-01	43.4570404159862
2001-10-01	43.5858529092203
2002-01-01	43.1811000204465
2002-04-01	43.4507460470641
2002-07-01	43.4283173379775
2002-10-01	42.7406078318936
2003-01-01	43.1958896261112
2003-04-01	43.1333087149188
2003-07-01	43.0049997232626
2003-10-01	42.7018061186878
2004-01-01	42.6002358490566
2004-04-01	42.8434622467772
2004-07-01	42.8379547001785
2004-10-01	42.9519345648378
2005-01-01	42.7426323240123
2005-04-01	43.1876653925316
2005-07-01	43.0483394224238
2005-10-01	42.9585343041062
2006-01-01	42.8126145947928
2006-04-01	43.4049726085124
2006-07-01	43.3229586232149
2006-10-01	42.9002523867003
2007-01-01	42.9365616370719
2007-04-01	43.1359292488169
2007-07-01	43.5727063634040
2007-10-01	43.2906590801328
2008-01-01	43.3674958056751
2008-04-01	43.9463517749107
2008-07-01	43.5986600152933
2008-10-01	43.3077454796813
2009-01-01	43.1498498771722
2009-04-01	42.9841789416258
2009-07-01	42.5461945166155
2009-10-01	42.6717487975315
2010-01-01	42.6206295610500
2010-04-01	42.5618784931407
2010-07-01	41.9866156440995
2010-10-01	41.8206856563021
2011-01-01	41.0968092820885
2011-04-01	41.5383778490997
2011-07-01	40.7340913624576
2011-10-01	40.0442598269513
2012-01-01	39.9920074113095
2012-04-01	40.3054267793837
2012-07-01	40.0498417433696
2012-10-01	38.9226680259230
2013-01-01	38.3887551957996
2013-04-01	39.1019559188440
2013-07-01	39.3619546757729
2013-10-01	39.4743095285968
2014-01-01	39.3861799026960
2014-04-01	39.9458262413294
2014-07-01	40.3523551388177
2014-10-01	39.9600527743165