Quarter	Percent
1998-04-01	8.02594444719513
1999-04-01	6.85479980704293
2000-04-01	5.00048081546302
2001-01-01	4.81429243065350
2001-04-01	4.39575645756458
2001-07-01	4.45436327199854
2001-10-01	4.37813720022309
2002-01-01	4.77187107576392
2002-04-01	4.62335043988270
2002-07-01	4.66201522290685
2002-10-01	4.42900162149641
2003-01-01	5.27191239661784
2003-04-01	5.00818033084894
2003-07-01	5.18256772673734
2003-10-01	5.23807320346120
2004-01-01	6.12273232136246
2004-04-01	6.17951982539105
2004-07-01	6.24159870956179
2004-10-01	5.97703269842734
2005-01-01	6.35679791976226
2005-04-01	8.58253456424754
2005-07-01	7.23564619818222
2005-10-01	7.26261992289070
2006-01-01	8.07285810658871
2006-04-01	8.40622813156053
2006-07-01	6.58438002520753
2006-10-01	5.95455965718877
2007-01-01	6.70609685596122
2007-04-01	7.39386640285604
2007-07-01	5.84051077687792
2007-10-01	5.92424308619861
2008-01-01	6.58245552690240
2008-04-01	7.23075617414920
2008-07-01	6.09335772945832
2008-10-01	6.35162159812190
2009-01-01	7.67026956634979
2009-04-01	8.81645061858717
2009-07-01	7.68212486121787
2009-10-01	7.86007153450231
2010-01-01	9.11664779161948
2010-04-01	9.47297068293510
2010-07-01	7.92747654027430
2010-10-01	7.56003300186721
2011-01-01	8.43961311307027
2011-04-01	8.58356586564491
2011-07-01	7.02172096908939
2011-10-01	7.00912757376353
2012-01-01	7.82314364290247
2012-04-01	8.44502919167832
2012-07-01	7.25271100482415
2012-10-01	7.31615019131312
2013-01-01	8.35704720455306
2013-04-01	8.45987867931442
2013-07-01	7.50387217738648
2013-10-01	7.23395445134576
2014-01-01	8.26234389215119
2014-04-01	8.42787030332287
2014-07-01	7.00504363141462
2014-10-01	7.08884688090737
2015-01-01	8.09248554913295
2015-04-01	8.27166388159465
2015-07-01	6.35546004457179
2015-10-01	6.44456138930494
2016-01-01	7.08934181906066
2016-04-01	7.12994261457433
2016-07-01	6.08912261278716
2016-10-01	6.03793213828425
2017-01-01	6.65320984722552
2017-04-01	6.99026867754817
2017-07-01	6.16706000696406
2017-10-01	5.94792610391145
2018-01-01	6.45211869389675
2018-04-01	6.65063184820372