Quarter	Percent
1998-01-01	24.5000238814932
1998-04-01	24.9207967725324
1998-07-01	25.3490228724275
1998-10-01	25.4513207933287
1999-01-01	25.1949176521926
1999-04-01	25.5569832078552
1999-07-01	25.9673009661078
1999-10-01	25.9874126398359
2000-01-01	25.6571352682174
2000-04-01	26.2256202958910
2000-07-01	26.7369967555655
2000-10-01	27.0337164985432
2001-01-01	26.9121254748459
2001-04-01	27.2115240979399
2001-07-01	27.6460110939594
2001-10-01	27.6425162042687
2002-01-01	27.5541072015339
2002-04-01	27.7666398000582
2002-07-01	28.1744378626078
2002-10-01	28.0918554350735
2003-01-01	27.9452407402390
2003-04-01	28.4092602376018
2003-07-01	28.6056845584848
2003-10-01	28.3611260716548
2004-01-01	29.4174895556400
2004-04-01	29.6787412010522
2004-07-01	29.5351473922902
2004-10-01	30.0071608914469
2005-01-01	29.4762374443930
2005-04-01	29.6406013074521
2005-07-01	29.2543180822934
2005-10-01	29.7487125022544
2006-01-01	29.8255680131299
2006-04-01	30.3669281633605
2006-07-01	30.0063907121650
2006-10-01	30.3318748836343
2007-01-01	29.8692648009146
2007-04-01	30.3778319187532
2007-07-01	30.4474753145537
2007-10-01	30.4890388970009
2008-01-01	30.4477847632771
2008-04-01	30.8587672249102
2008-07-01	30.6304623521663
2008-10-01	30.6186261619274
2009-01-01	30.0765182873484
2009-04-01	30.4121863799283
2009-07-01	29.9074423630186
2009-10-01	29.9192101705491
2010-01-01	29.6753442752774
2010-04-01	30.1777449340749
2010-07-01	29.7146982366519
2010-10-01	30.1345990319733
2011-01-01	30.0968616815188
2011-04-01	30.3017210804955
2011-07-01	29.8411256498966
2011-10-01	30.2939292393764
2012-01-01	30.2605255540188
2012-04-01	30.6925092007778
2012-07-01	30.2573824748562
2012-10-01	30.3826091425341
2013-01-01	29.9379268731064
2013-04-01	30.0315862046850
2013-07-01	29.7244088176353
2013-10-01	29.9950950691018
2014-01-01	29.7424788176330
2014-04-01	29.9507979319756
2014-07-01	29.9775118207096