Quarter	Percent
2005-01-01	7.15546993960038
2005-04-01	6.61956606823560
2005-07-01	6.52686346337275
2005-10-01	6.43618647527487
2006-01-01	6.72380559199760
2006-04-01	6.09297026997110
2006-07-01	6.05474271540542
2006-10-01	5.84251021654485
2007-01-01	6.12935587700480
2007-04-01	5.55084282089063
2007-07-01	5.61152579874885
2007-10-01	5.54657880552672
2008-01-01	5.96032806460910
2008-04-01	5.72551120606001
2008-07-01	6.01906249555426
2008-10-01	6.46932207864989
2009-01-01	8.04532903489020
2009-04-01	8.20416094049864
2009-07-01	8.46006224411530
2009-10-01	8.36913341398270
2010-01-01	9.06669096153278
2010-04-01	8.41330735213570
2010-07-01	8.31134000756322
2010-10-01	8.17684717430666
2011-01-01	8.49898368022205
2011-04-01	8.01349647289086
2011-07-01	8.05045650358734
2011-10-01	7.92842738186349
2012-01-01	8.45775257769084
2012-04-01	8.01388981281532
2012-07-01	8.03352427329384
2012-10-01	8.02202358442606
2013-01-01	8.59336141700404
2013-04-01	8.07371623768932
2013-07-01	7.97708880335772
2013-10-01	7.73005953178296
2014-01-01	8.13603520915610
2014-04-01	7.48094662374708
2014-07-01	7.43686815382658
2014-10-01	7.21585915066098
2015-01-01	7.48185481644078
2015-04-01	6.97732282208894
2015-07-01	6.80454978509032
2015-10-01	6.65256660048182
2016-01-01	6.91866476126047
2016-04-01	6.45255940551942
2016-07-01	6.45460892701615
2016-10-01	6.26481380249555
2017-01-01	6.47931305395593
2017-04-01	5.89286281396302
2017-07-01	5.83614286281797
2017-10-01	5.57607622421384
2018-01-01	5.79927014766921
2018-04-01	5.38299541444166