Quarter	Percent
1998-04-01	2.73660205245154
1999-04-01	2.38359201773836
2000-04-01	2.32181425485961
2001-04-01	1.80180180180180
2002-04-01	2.63838592860838
2003-01-01	3.65602471678682
2003-04-01	3.65602471678682
2003-07-01	3.65602471678682
2003-10-01	3.65602471678682
2004-01-01	5.13853904282116
2004-04-01	5.13853904282116
2004-07-01	5.13853904282116
2004-10-01	5.13853904282116
2005-01-01	4.48939319190922
2005-04-01	4.48939319190922
2005-07-01	4.48939319190922
2005-10-01	4.48939319190922
2006-01-01	4.73170731707317
2006-04-01	4.73170731707317
2006-07-01	4.73170731707317
2006-10-01	4.73170731707317
2007-01-01	4.57331447430457
2007-04-01	3.92532312111058
2007-07-01	3.98499765588373
2007-10-01	3.78071833648393
2008-01-01	4.28502648050072
2008-04-01	5.01138952164009
2008-07-01	5.52717138875987
2008-10-01	5.37839124226559
2009-01-01	5.75065847234416
2009-04-01	5.07372072853426
2009-07-01	4.33639947437582
2009-10-01	5.28615115771079
2010-01-01	4.85689505637467
2010-04-01	4.15391342369917
2010-07-01	3.85615251299827
2010-10-01	4.53961456102784
2011-01-01	5.20399666944213
2011-04-01	5.33959846219564
2011-07-01	4.33673469387755
2011-10-01	4.70737913486005
2012-01-01	5.87758411025537
2012-04-01	3.95918367346939
2012-07-01	5.69845666798575
2012-10-01	5.01792114695340
2013-01-01	5.43307086614173
2013-04-01	6.15627466456196
2013-07-01	5.59745930924970
2013-10-01	6.15927814829345
2014-01-01	6.54241156333207
2014-04-01	4.98647081561654
2014-07-01	6.41274776525457
2014-10-01	5.47789950887798
2015-01-01	7.28643216080402
2015-04-01	5.38684020245842
2015-07-01	7.72578890097932
2015-10-01	6.23624358033749
2016-01-01	5.93987685621152
2016-04-01	6.19116582186821
2016-07-01	7.09677419354839
2016-10-01	5.91589451176051
2017-01-01	6.07006590357267
2017-04-01	5.33520533520534
2017-07-01	5.46767537826685
2017-10-01	5.19163763066202
2018-01-01	5.52746882372767
2018-04-01	5.47570157426420