Quarter	Percent
1999-04-01	3.66314752863825
2000-04-01	3.32883553167001
2001-04-01	3.24134501091693
2002-04-01	3.46877831738117
2003-04-01	3.92168283311654
2004-04-01	3.95825537020357
2005-01-01	4.81736559333646
2005-04-01	4.80893334839530
2005-07-01	4.85998288839968
2005-10-01	4.78332659388058
2006-01-01	4.86135832283018
2006-04-01	4.48807213239344
2006-07-01	4.49849648859667
2006-10-01	4.51498684264479
2007-01-01	4.16337596794699
2007-04-01	4.00185257551416
2007-07-01	3.98170639046146
2007-10-01	3.89474853965048
2008-01-01	3.67334137515078
2008-04-01	3.60005882764224
2008-07-01	3.50221654683045
2008-10-01	3.23090761374188
2009-01-01	3.48474471262170
2009-04-01	3.33851495648889
2009-07-01	3.47172268989249
2009-10-01	3.21499569843345
2010-01-01	3.33426390085814
2010-04-01	2.99756368849287
2010-07-01	2.91123580181970
2010-10-01	2.91184925410159
2011-01-01	2.83479744052373
2011-04-01	2.53958296802491
2011-07-01	2.63734578588601
2011-10-01	2.48568794039477
2012-01-01	2.48720997350725
2012-04-01	2.41398199692053
2012-07-01	2.44289074171774
2012-10-01	2.41002776722875
2013-01-01	2.46768449596704
2013-04-01	2.32583909970696
2013-07-01	2.28571006470803
2013-10-01	2.29153123337864
2014-01-01	2.34660100410637
2014-04-01	2.13605512463807
2014-07-01	2.21141164196146