Quarter	Percent
1998-04-01	6.77819845562476
1998-07-01	6.73296841396557
1998-10-01	6.64607663421254
1999-01-01	7.02321381163307
1999-04-01	6.66842897597446
1999-07-01	6.52489898244377
1999-10-01	6.31408033876556
2000-01-01	6.70478538976208
2000-04-01	6.15837643477117
2000-07-01	6.01350981357774
2000-10-01	5.89782665111880
2001-01-01	6.48064948417878
2001-04-01	6.16924305371422
2001-07-01	6.29680563660309
2001-10-01	6.61014973096910
2002-01-01	7.20904037069186
2002-04-01	6.83615747916143
2002-07-01	6.79065342463592
2002-10-01	6.84443845381258
2003-01-01	7.42094441051824
2003-04-01	7.06599441794106
2003-07-01	6.94620419803654
2003-10-01	6.84846990223534
2004-01-01	7.40385564365474
2004-04-01	6.86210859159893
2004-07-01	6.78745553597916
2004-10-01	6.74570203891696
2005-01-01	7.10979923791575
2005-04-01	6.59515966578470
2005-07-01	6.47535058295407
2005-10-01	6.40075512475946
2006-01-01	6.63402702180952
2006-04-01	6.03538613287220
2006-07-01	5.97273308674506
2006-10-01	5.77392452793400
2007-01-01	6.02482758263904
2007-04-01	5.47323988367185
2007-07-01	5.52288435017908
2007-10-01	5.47171417122795
2008-01-01	5.86363129769930
2008-04-01	5.65124049369821
2008-07-01	5.93785085755200
2008-10-01	6.38432052038228
2009-01-01	7.91730140398025
2009-04-01	8.08769164437909
2009-07-01	8.32692446825359
2009-10-01	8.25814177187324
2010-01-01	8.93535044003381
2010-04-01	8.27905777920244
2010-07-01	8.17493809158099
2010-10-01	8.07102432905015
2011-01-01	8.34936354648130
2011-04-01	7.86048555571530
2011-07-01	7.90062461665776
2011-10-01	7.78679426683654
2012-01-01	8.28325056838892
2012-04-01	7.86412610257186
2012-07-01	7.86642991149557
2012-10-01	7.86163573360728
2013-01-01	8.41093198445442
2013-04-01	7.88599119703991
2013-07-01	7.77678738249089
2013-10-01	7.54512307216407
2014-01-01	7.91577516935150
2014-04-01	7.28328489589766
2014-07-01	7.24644316344049
2014-10-01	7.01704786718385
2015-01-01	7.27245046474657
2015-04-01	6.78724356697624
2015-07-01	6.61325012318339
2015-10-01	6.45734603451301
2016-01-01	6.72266683749637
2016-04-01	6.27074148462670
2016-07-01	6.25566842653081
2016-10-01	6.09547704406545
2017-01-01	6.29847015691547
2017-04-01	5.72846136715294
2017-07-01	5.66427677398147
2017-10-01	5.42556055832940
2018-01-01	5.64045397554669
2018-04-01	5.22441645399847