Quarter	Percent
1998-01-01	12.11037091866110
1998-04-01	13.21596431132000
1998-07-01	10.20135283938960
1998-10-01	10.14486872539870
1999-01-01	10.94787683638560
1999-04-01	11.69411319326140
1999-07-01	8.87439203273373
1999-10-01	9.32972456615189
2000-01-01	11.03481125709520
2000-04-01	11.13321572013060
2000-07-01	8.39860086685423
2000-10-01	8.63411181882520
2001-01-01	9.75091488608193
2001-04-01	10.28895691779290
2001-07-01	8.02994603633047
2001-10-01	8.41642000311575
2002-01-01	9.59937463357436
2002-04-01	10.42287075640260
2002-07-01	8.00955232932793
2002-10-01	8.29289292423294
2003-01-01	9.48551799515966
2003-04-01	10.46841202356980
2003-07-01	7.86623960954778
2003-10-01	8.24746338189427
2004-01-01	9.34200157604413
2004-04-01	10.35947958186060
2004-07-01	7.65861832584355
2004-10-01	7.90402258292167
2005-01-01	9.12519440124417
2005-04-01	9.59997017484994
2005-07-01	7.20009114039418
2005-10-01	7.58942337341967
2006-01-01	8.40930948259281
2006-04-01	8.93346162386204
2006-07-01	6.76185848316077
2006-10-01	6.75489596083231
2007-01-01	7.58399020433152
2007-04-01	7.69315148634319
2007-07-01	6.05108490740398
2007-10-01	6.08774515361070
2008-01-01	6.64201071779002
2008-04-01	7.28281227488834
2008-07-01	5.55678221829690
2008-10-01	5.96942216892753
2009-01-01	7.63425034906978
2009-04-01	9.56691772885284
2009-07-01	7.54498618681401
2009-10-01	8.20497178587769
2010-01-01	9.26221411746828
2010-04-01	9.56591347378379
2010-07-01	7.27875200119141
2010-10-01	7.44104403571701
2011-01-01	8.61545468346744
2011-04-01	8.82448831733382
2011-07-01	6.78952832987244
2011-10-01	6.87040266929552
2012-01-01	7.99288848539870
2012-04-01	8.61962857039424
2012-07-01	7.08065405107478
2012-10-01	7.03406889741350
2013-01-01	8.77405667525383
2013-04-01	9.12980420594634
2013-07-01	7.10955276213212
2013-10-01	7.73215510017521
2014-01-01	9.04186611959578
2014-04-01	9.62320313634384
2014-07-01	7.53559611881482
2014-10-01	8.43054082714740
2015-01-01	9.70129526830558
2015-04-01	10.68799187611070
2015-07-01	8.36472413029027
2015-10-01	8.71523178807947
2016-01-01	9.62923848678007
2016-04-01	9.99745611803612
2016-07-01	7.57025283606436
2016-10-01	8.04819824940320
2017-01-01	9.34156998643966
2017-04-01	9.93138317081979
2017-07-01	7.65631332670130
2017-10-01	7.60853404698186
2018-01-01	8.75734397516905
2018-04-01	8.17302544701809