Quarter	Percent
1998-04-01	7.39148239148239
1999-01-01	7.49417002331991
1999-04-01	7.32088851809365
1999-07-01	7.35768550317411
1999-10-01	7.49737118822292
2000-01-01	7.09996839776678
2000-04-01	6.91666666666667
2000-07-01	6.51799290420679
2000-10-01	6.39288300403434
2001-01-01	6.35264951967772
2001-04-01	5.68568775152203
2001-07-01	5.79403466344216
2001-10-01	6.87007269376472
2002-01-01	6.86055938386704
2002-04-01	5.92615259077927
2002-07-01	5.97955179180006
2002-10-01	6.47747652705982
2003-01-01	6.97552263893266
2003-04-01	6.47887323943662
2003-07-01	6.56644743710199
2003-10-01	6.68099038264784
2004-01-01	6.81152097018696
2004-04-01	6.01212362118652
2004-07-01	5.91094691814116
2004-10-01	6.44260496659020
2005-01-01	6.79369513168396
2005-04-01	5.74243630573248
2005-07-01	6.31086871834827
2005-10-01	7.16580664005452
2006-01-01	6.87143138413074
2006-04-01	5.85664335664336
2006-07-01	5.52159146045609
2006-10-01	5.56214186919581
2007-01-01	5.64587644102867
2007-04-01	4.54414449034489
2007-07-01	4.38996579247434
2007-10-01	4.71899224806202
2008-01-01	5.05722390687665
2008-04-01	4.12470952749806
2008-07-01	4.06191369606004
2008-10-01	4.25633668101387
2009-01-01	5.29840456962773
2009-04-01	5.55716074352307
2009-07-01	6.13894895177212
2009-10-01	6.39473935004289
2010-01-01	7.11466255896794
2010-04-01	7.09349203301977
2010-07-01	7.01248799231508
2010-10-01	7.72914471793890
2011-01-01	8.46889480429853
2011-04-01	7.67792105522197
2011-07-01	7.82591725214676
2011-10-01	8.70500782472614
2012-01-01	8.55367008681926
2012-04-01	8.16122917290232
2012-07-01	9.13286850633409
2012-10-01	9.50745682888540
2013-01-01	11.08662994491740
2013-04-01	10.33832721500150
2013-07-01	9.38390488356097
2013-10-01	9.62550908910301
2014-01-01	10.74947745595700
2014-04-01	9.23902439024390
2014-07-01	9.19258314529579
2014-10-01	9.51202613085222
2015-01-01	9.73549230614503
2015-04-01	9.16330744272933
2015-07-01	8.53479494959382
2015-10-01	8.41683366733467
2016-01-01	8.87688544639217
2016-04-01	7.76484751203852
2016-07-01	7.35161193130461
2016-10-01	8.03304797929524
2017-01-01	7.78939065273122
2017-04-01	6.42633228840125
2017-07-01	6.29451395572666
2017-10-01	5.76606260296540
2018-01-01	5.93402303337888
2018-04-01	5.19267822736031