Quarter	Percent
1998-04-01	1.93014705882353
1999-04-01	1.73674588665448
2000-04-01	1.79051029543420
2001-04-01	1.59292035398230
2002-04-01	1.91304347826087
2003-01-01	2.96943231441048
2003-04-01	2.96943231441048
2003-07-01	2.96943231441048
2003-10-01	2.96943231441048
2004-01-01	3.64267129228101
2004-04-01	3.64267129228101
2004-07-01	3.64267129228101
2004-10-01	3.64267129228101
2005-01-01	3.51328191945158
2005-04-01	3.51328191945158
2005-07-01	3.51328191945158
2005-10-01	3.51328191945158
2006-01-01	3.56211989574283
2006-04-01	3.56211989574283
2006-07-01	3.56211989574283
2006-10-01	3.56211989574283
2007-01-01	3.98305084745763
2007-04-01	4.16666666666667
2007-07-01	2.86195286195286
2007-10-01	3.22019147084421
2008-01-01	2.40549828178694
2008-04-01	4.26045016077170
2008-07-01	5.09708737864078
2008-10-01	5.48986486486486
2009-01-01	5.06625097427903
2009-04-01	4.24564063684610
2009-07-01	3.70370370370370
2009-10-01	4.48569218870843
2010-01-01	4.53846153846154
2010-04-01	4.17310664605873
2010-07-01	2.78637770897833
2010-10-01	3.66132723112128
2011-01-01	3.27380952380952
2011-04-01	4.33460076045627
2011-07-01	3.55521936459909
2011-10-01	4.25855513307985
2012-01-01	5.79710144927536
2012-04-01	3.36996336996337
2012-07-01	4.60431654676259
2012-10-01	4.29799426934097
2013-01-01	5.48823948681397
2013-04-01	5.73065902578797
2013-07-01	5.40730337078652
2013-10-01	5.12640449438202
2014-01-01	8.30496936691627
2014-04-01	4.53593859036985
2014-07-01	5.63380281690141
2014-10-01	5.20547945205480
2015-01-01	6.28306878306878
2015-04-01	4.78405315614618
2015-07-01	6.95364238410596
2015-10-01	6.45161290322581
2016-01-01	5.29450694904037
2016-04-01	5.66534914361001
2016-07-01	6.91699604743083
2016-10-01	6.20104438642298
2017-01-01	6.61528580603725
2017-04-01	5.47231270358306
2017-07-01	5.04854368932039
2017-10-01	4.96134020618557
2018-01-01	4.98737373737374
2018-04-01	5.29674537332482