Quarter	Percent
1998-04-01	9.73807053941909
1999-04-01	8.28185077979868
2000-04-01	5.89291186900749
2001-01-01	5.66687938736439
2001-04-01	5.03184179654768
2001-07-01	4.91701244813278
2001-10-01	5.02306292581778
2002-01-01	5.90685024647289
2002-04-01	5.27877622669899
2002-07-01	5.26184745622043
2002-10-01	5.49097518704823
2003-01-01	6.26118067978533
2003-04-01	6.05217246822298
2003-07-01	5.83535806943129
2003-10-01	6.39630174406388
2004-01-01	7.62633481880098
2004-04-01	7.15908621473128
2004-07-01	6.43354339140821
2004-10-01	6.31934191098924
2005-01-01	7.29201751431458
2005-04-01	8.72303950883068
2005-07-01	7.26939036067667
2005-10-01	7.03640361592964
2006-01-01	7.67726161369193
2006-04-01	7.71757628527328
2006-07-01	6.12333412191468
2006-10-01	6.07953862789859
2007-01-01	6.87674511368169
2007-04-01	6.38806203979320
2007-07-01	5.16296958160134
2007-10-01	5.12556444585281
2008-01-01	5.97056154058640
2008-04-01	6.50147673660389
2008-07-01	5.27225251516781
2008-10-01	6.00422998590005
2009-01-01	8.04010222134854
2009-04-01	9.46566638597566
2009-07-01	8.41777982496545
2009-10-01	8.68617683686177
2010-01-01	9.65160989629860
2010-04-01	9.52470836951187
2010-07-01	7.98343061570326
2010-10-01	7.60877906530581
2011-01-01	8.25860351038553
2011-04-01	8.53954391072295
2011-07-01	7.13884835559546
2011-10-01	7.42379735245870
2012-01-01	8.47905108092596
2012-04-01	8.75521143537820
2012-07-01	7.71058395515462
2012-10-01	7.91668238934380
2013-01-01	8.84315277620717
2013-04-01	9.04198459213388
2013-07-01	7.27996168441219
2013-10-01	7.64710285970954
2014-01-01	8.89137737961926
2014-04-01	8.93208124044551
2014-07-01	7.43705850389422
2014-10-01	7.50561632232166
2015-01-01	8.42373256586230
2015-04-01	8.34389599101872
2015-07-01	6.73969820081254
2015-10-01	6.73727566931450
2016-01-01	8.19588006744374
2016-04-01	7.92093389672706
2016-07-01	6.58637425849362
2016-10-01	6.73627728228555
2017-01-01	7.65880870973547
2017-04-01	7.58681164503683
2017-07-01	6.41509433962264
2017-10-01	6.22933333333333
2018-01-01	6.85882227966432
2018-04-01	7.07361984504742