Quarter	Percent
1998-01-01	9.14726835863344
1998-04-01	9.43494434111540
1998-07-01	8.79265816840913
1998-10-01	9.09418132986308
1999-01-01	9.21377808184750
1999-04-01	8.83955249808908
1999-07-01	8.49742575349264
1999-10-01	8.55508184714036
2000-01-01	8.95311532224952
2000-04-01	8.32091078646855
2000-07-01	7.67426227484120
2000-10-01	7.60195490574562
2001-01-01	7.76425403755025
2001-04-01	7.39998752226928
2001-07-01	7.03726295156570
2001-10-01	7.14055547556854
2002-01-01	7.13927321964932
2002-04-01	7.01808530337634
2002-07-01	6.74059919470416
2002-10-01	6.91373191373191
2003-01-01	7.32881342045431
2003-04-01	6.86685336222345
2003-07-01	6.31680648826655
2003-10-01	6.60194702409663
2004-01-01	6.77457615293379
2004-04-01	6.27368305017017
2004-07-01	5.66493788112125
2004-10-01	6.53684239489324
2005-01-01	6.79155775002420
2005-04-01	6.08915077798940
2005-07-01	5.53451892258596
2005-10-01	6.25593656649643
2006-01-01	6.05910277875387
2006-04-01	5.19991260651082
2006-07-01	4.82472776425315
2006-10-01	5.60282759523498
2007-01-01	5.28790559650027
2007-04-01	4.56843365041372
2007-07-01	4.43572990724045
2007-10-01	5.22368123625753
2008-01-01	5.69845721333728
2008-04-01	5.39764434336920
2008-07-01	4.87438250305759
2008-10-01	6.01290287270215
2009-01-01	6.82313206506755
2009-04-01	6.27257280050632
2009-07-01	6.41589564689822
2009-10-01	7.38674710411416
2010-01-01	8.03290537982308
2010-04-01	7.51153025400978
2010-07-01	6.72808935394416
2010-10-01	7.70709179652393
2011-01-01	7.82375409870159
2011-04-01	6.91007803604654
2011-07-01	6.69711866531118
2011-10-01	8.63104059111806
2012-01-01	9.94025545941492
2012-04-01	9.75468483816014
2012-07-01	8.81830099452974
2012-10-01	10.69261949454560
2013-01-01	11.88939587015800
2013-04-01	11.47233038995230
2013-07-01	10.68703865495350
2013-10-01	11.85561727509380
2014-01-01	12.90454619876660
2014-04-01	11.42129901325220
2014-07-01	10.92927833365140
2014-10-01	12.18565652324090
2015-01-01	12.38241413417920
2015-04-01	11.61402013890300
2015-07-01	9.99281628669793
2015-10-01	11.27679969757520
2016-01-01	11.51248743104060
2016-04-01	10.63052311158190
2016-07-01	10.16206745510290
2016-10-01	11.25714247436080
2017-01-01	11.24503667810750
2017-04-01	10.10631148862960
2017-07-01	9.63958829248667
2017-10-01	10.36588639536130
2018-01-01	10.64871067908740
2018-04-01	9.84696829630024