Quarter	Percent
1999-01-01	3.57359482410028
1999-04-01	3.54599181694196
1999-07-01	3.56063658340048
1999-10-01	3.58904661230243
2000-01-01	3.39068316732066
2000-04-01	3.33970425510512
2000-07-01	3.23066874340552
2000-10-01	3.10521555622550
2001-01-01	3.09029697000151
2001-04-01	2.76787059828201
2001-07-01	2.88654618473896
2001-10-01	3.36678374310085
2002-01-01	3.39518555667001
2002-04-01	2.91374122367101
2002-07-01	2.90123766097109
2002-10-01	3.07753997293369
2003-01-01	3.32832080200501
2003-04-01	3.11325011279892
2003-07-01	3.15004006410256
2003-10-01	3.26843185344612
2004-01-01	3.37607693848928
2004-04-01	3.03045481867361
2004-07-01	3.04456685027541
2004-10-01	3.23485227841763
2005-01-01	3.40909090909091
2005-04-01	2.88846615939127
2005-07-01	3.23821897956124
2005-10-01	3.67797711258808
2006-01-01	3.48407706898273
2006-04-01	3.00988319856244
2006-07-01	2.83295992033856
2006-10-01	2.80308688075678
2007-01-01	2.85017906884202
2007-04-01	2.35276561878233
2007-07-01	2.28780825987917
2007-10-01	2.41160740814103
2008-01-01	2.55195221876697
2008-04-01	2.10276913964164
2008-07-01	2.12317348239678
2008-10-01	2.18190733022800
2009-01-01	2.64711670930919
2009-04-01	2.83900806927770
2009-07-01	3.19737550800568
2009-10-01	3.28551143318807
2010-01-01	3.61016121152907
2010-04-01	3.61016121152907
2010-07-01	3.56219196798907
2010-10-01	3.93793002488655
2011-01-01	4.18983513803531
2011-04-01	3.80450687737782
2011-07-01	3.90742996345920
2011-10-01	4.33617539585871
2012-01-01	4.21795183653612
2012-04-01	3.97956701532474
2012-07-01	4.52268637844672
2012-10-01	4.71234742012352
2013-01-01	5.37691859335535
2013-04-01	5.06120069943656
2013-07-01	4.63794861832840
2013-10-01	4.70593948812588
2014-01-01	5.23992043083790
2014-04-01	4.59463393333657
2014-07-01	4.54501358168413
2014-10-01	4.66142801707412
2015-01-01	4.69242328760483
2015-04-01	4.51791167773523
2015-07-01	4.22664921719742