Quarter	Percent
1999-04-01	7.89473684210526
2000-04-01	6.84931506849315
2001-04-01	5.06329113924051
2002-04-01	7.89473684210526
2003-01-01	13.33333333333330
2003-04-01	13.33333333333330
2003-07-01	13.33333333333330
2003-10-01	13.33333333333330
2004-01-01	22.72727272727270
2004-04-01	22.72727272727270
2004-07-01	22.72727272727270
2004-10-01	22.72727272727270
2005-01-01	15.38461538461540
2005-04-01	15.38461538461540
2005-07-01	15.38461538461540
2005-10-01	15.38461538461540
2006-01-01	16.41791044776120
2006-04-01	16.41791044776120
2006-07-01	16.41791044776120
2006-10-01	16.41791044776120
2007-01-01	17.24137931034480
2007-04-01	9.09090909090909
2007-07-01	23.18840579710140
2007-10-01	17.39130434782610
2008-01-01	22.41379310344830
2008-04-01	12.85714285714290
2008-07-01	29.48717948717950
2008-10-01	30.12048192771080
2009-01-01	14.92537313432840
2009-04-01	17.24137931034480
2009-07-01	19.04761904761900
2009-10-01	18.18181818181820
2010-01-01	9.25925925925926
2010-04-01	15.38461538461540
2010-07-01	6.84931506849315
2010-10-01	10.44776119402990
2011-01-01	25.33333333333330
2011-04-01	21.42857142857140
2011-07-01	17.80821917808220
2011-10-01	16.17647058823530
2012-01-01	12.12121212121210
2012-04-01	13.55932203389830
2012-07-01	22.35294117647060
2012-10-01	23.86363636363640
2013-01-01	10.14492753623190
2013-04-01	13.43283582089550
2013-07-01	15.68627450980390
2013-10-01	8.10810810810811
2014-01-01	14.11764705882350
2014-04-01	18.64406779661020
2014-07-01	31.34328358208960
2014-10-01	11.66666666666670
2015-01-01	18.96551724137930
2015-04-01	10.67961165048540
2015-07-01	18.11023622047240
2015-10-01	13.54166666666670
2016-01-01	22.22222222222220
2016-04-01	18.44660194174760
2016-07-01	17.46031746031750
2016-10-01	14.44444444444440
2017-01-01	8.49056603773585
2017-04-01	10.25641025641030
2017-07-01	17.43119266055050
2017-10-01	15.62500000000000
2018-01-01	9.90099009900990
2018-04-01	7.60869565217391