Quarter	Percent
1999-07-01	10.48320373337740
1999-10-01	10.88623190502370
2000-01-01	11.86665734286230
2000-04-01	8.28477731731637
2000-07-01	7.99523026373489
2000-10-01	7.92366928219281
2001-01-01	10.67046571148650
2001-04-01	8.66892313586205
2001-07-01	7.48419171418519
2001-10-01	7.95190392617620
2002-01-01	9.63413772712590
2002-04-01	6.92232122659752
2002-07-01	6.61869183663764
2002-10-01	6.30244110526836
2003-01-01	10.07050716671240
2003-04-01	8.18161841657058
2003-07-01	8.10745910521928
2003-10-01	9.32562887997975
2004-01-01	11.55782535255060
2004-04-01	9.72819473178268
2004-07-01	7.83863759678395
2004-10-01	8.19777818581611
2005-01-01	10.75394586229750
2005-04-01	8.85911240133204
2005-07-01	7.66234525988136
2005-10-01	8.26527435056354
2006-01-01	9.62089573395170
2006-04-01	8.44197231607341
2006-07-01	9.11401073227044
2006-10-01	8.27750954426586
2007-01-01	8.10610718964303
2007-04-01	7.29067491285739
2007-07-01	6.52645302306441
2007-10-01	6.58261031385286
2008-01-01	8.16523013471370
2008-04-01	8.62459179551174
2008-07-01	7.17429948622638
2008-10-01	7.62781405290363
2009-01-01	8.98861570418068
2009-04-01	8.20061397716135
2009-07-01	8.40758825356310
2009-10-01	8.55330036559332
2010-01-01	11.27032910286740
2010-04-01	8.57602427417656
2010-07-01	7.64783674880623
2010-10-01	7.94725815932837
2011-01-01	9.93999911575565
2011-04-01	7.67781667173409
2011-07-01	7.24364018510110
2011-10-01	7.54245995571198
2012-01-01	10.53992528427400
2012-04-01	9.21187412626163
2012-07-01	7.38649573677284
2012-10-01	6.94302258624289
2013-01-01	10.21909516842800
2013-04-01	9.48431910427543
2013-07-01	8.08204877930042
2013-10-01	8.38138023480924
2014-01-01	10.80512123468860
2014-04-01	9.52286304325745
2014-07-01	7.64219950181448
2014-10-01	8.84067656079331
2015-01-01	11.69909485331800
2015-04-01	10.59447799663570
2015-07-01	8.73971140661092
2015-10-01	8.76146511298860
2016-01-01	12.30182917920300
2016-04-01	11.21752201552250
2016-07-01	9.69023871470648
2016-10-01	8.55906728019799
2017-01-01	11.81895895544720
2017-04-01	10.73316071254380
2017-07-01	8.41934973535986
2017-10-01	7.58235266231403
2018-01-01	11.17052764689720
2018-04-01	10.95366854979740
2018-07-01	10.22582039456360