Quarter	Percent
1999-07-01	4.62310658057769
1999-10-01	3.65723736640851
2000-01-01	3.92667638205880
2000-04-01	2.74543595469328
2000-07-01	2.46557055909807
2000-10-01	2.66232402826467
2001-01-01	3.42001013460101
2001-04-01	2.26422666549384
2001-07-01	1.80444273591355
2001-10-01	1.75929140760788
2002-01-01	2.21231099196671
2002-04-01	1.76911917683243
2002-07-01	1.59411829958599
2002-10-01	1.35359734706438
2003-01-01	2.34505236580907
2003-04-01	2.04633035365254
2003-07-01	2.18895925010623
2003-10-01	1.79922687497466
2004-01-01	2.43523650330812
2004-04-01	2.12195128687552
2004-07-01	2.30038565105544
2004-10-01	1.98117789085146
2005-01-01	2.45123284782345
2005-04-01	2.87004690486668
2005-07-01	2.59245572221273
2005-10-01	2.05588216831516
2006-01-01	2.76489991729917
2006-04-01	2.53855077851452
2006-07-01	2.07440590429738
2006-10-01	2.03801104863633
2007-01-01	2.55829702205494
2007-04-01	2.00224599384889
2007-07-01	2.07387425705071
2007-10-01	2.04627157142648
2008-01-01	2.12545123842426
2008-04-01	1.93758676138308
2008-07-01	1.82056942259439
2008-10-01	1.97145623264650
2009-01-01	2.21842458390069
2009-04-01	2.75055124275210
2009-07-01	2.27426746436525
2009-10-01	2.16396730256828
2010-01-01	4.27675577819460
2010-04-01	2.67424004709497
2010-07-01	2.44365987893352
2010-10-01	2.32907442720413
2011-01-01	2.96466257798634
2011-04-01	2.41285892944254
2011-07-01	2.42366007474983
2011-10-01	2.09233124701520
2012-01-01	2.74343771941128
2012-04-01	2.49832113864110
2012-07-01	2.59700028111139
2012-10-01	2.14460977138218
2013-01-01	2.74413870129492
2013-04-01	2.18142350154147
2013-07-01	1.97177876924893
2013-10-01	1.74499728101204
2014-01-01	2.97969648778063
2014-04-01	2.55895770126551
2014-07-01	2.22876706999053
2014-10-01	2.26303849093820
2015-01-01	3.13208325570032
2015-04-01	2.81779060051450
2015-07-01	2.78464579980498
2015-10-01	2.42289415063104
2016-01-01	3.15605667629563
2016-04-01	2.85795997948249
2016-07-01	2.67840896289537
2016-10-01	2.38637323757088
2017-01-01	2.66901977614412
2017-04-01	2.49030930913800
2017-07-01	2.54482253004105
2017-10-01	2.10233053990052
2018-01-01	2.91722924402183
2018-04-01	2.91332582383301
2018-07-01	2.99031822098442