Quarter	Percent
1998-04-01	7.47291620605793
1999-01-01	7.67820307128123
1999-04-01	7.47282608695652
1999-07-01	7.67489246094634
1999-10-01	7.91284403669725
2000-01-01	7.28476821192053
2000-04-01	7.07366523991890
2000-07-01	7.09110867178924
2000-10-01	6.75980171248310
2001-01-01	6.73726904010816
2001-04-01	6.01893597835888
2001-07-01	6.80122860903905
2001-10-01	7.59803921568627
2002-01-01	7.50610703975128
2002-04-01	6.27355353580137
2002-07-01	6.30308448815378
2002-10-01	7.12638376383764
2003-01-01	7.15600552231937
2003-04-01	7.00955848884843
2003-07-01	6.97087823893602
2003-10-01	7.24277978339350
2004-01-01	7.19185660544368
2004-04-01	6.40086206896552
2004-07-01	6.41891891891892
2004-10-01	7.26795096322242
2005-01-01	7.69565217391304
2005-04-01	6.11363145387773
2005-07-01	6.51389772968385
2005-10-01	7.82276870892516
2006-01-01	8.58177172061329
2006-04-01	6.70274771024147
2006-07-01	6.60736975857687
2006-10-01	6.85788225145568
2007-01-01	6.71400903808909
2007-04-01	5.72263993316625
2007-07-01	5.25000000000000
2007-10-01	5.67043274355148
2008-01-01	5.46858245764529
2008-04-01	4.89968321013728
2008-07-01	4.30839002267574
2008-10-01	4.64970809007506
2009-01-01	5.08618855075548
2009-04-01	5.52404956941819
2009-07-01	6.06247431154953
2009-10-01	6.54264214046823
2010-01-01	6.82536338740257
2010-04-01	6.65553932818694
2010-07-01	7.01013513513514
2010-10-01	7.57607555089192
2011-01-01	8.32434763855941
2011-04-01	7.38990332975295
2011-07-01	7.71683673469388
2011-10-01	9.26746886214904
2012-01-01	8.77007607776838
2012-04-01	8.70129870129870
2012-07-01	9.95735607675906
2012-10-01	10.01926782273600
2013-01-01	11.62688854828110
2013-04-01	10.82485386447280
2013-07-01	10.64557503206500
2013-10-01	10.53889613211650
2014-01-01	11.54426017661000
2014-04-01	10.18518518518520
2014-07-01	10.17964071856290
2014-10-01	10.31107243854690
2015-01-01	10.69223985890650
2015-04-01	10.21321961620470
2015-07-01	10.10230179028130
2015-10-01	9.11260577131699
2016-01-01	9.42156003505697
2016-04-01	8.48549946294307
2016-07-01	8.16944024205749
2016-10-01	8.29257920476292
2017-01-01	8.17145270270270
2017-04-01	7.50052820621170
2017-07-01	7.70657325365753
2017-10-01	6.54958677685950
2018-01-01	6.53403141361256
2018-04-01	5.63909774436090