Quarter	Percent
2002-04-01	23.3700450488912
2002-07-01	23.1874015086010
2002-10-01	22.1228550034735
2003-01-01	23.8598331202527
2003-04-01	26.0724025858538
2003-07-01	26.4667232287582
2003-10-01	24.8665503683301
2004-01-01	25.7057254180176
2004-04-01	25.5650069936798
2004-07-01	23.8379644938904
2004-10-01	21.8097210071052
2005-01-01	23.3742442420182
2005-04-01	23.0458457009466
2005-07-01	21.6107033607595
2005-10-01	20.5125985843255
2006-01-01	22.3953441127525
2006-04-01	22.9779771174951
2006-07-01	23.3880504294615
2006-10-01	20.9417127917914
2007-01-01	22.0949172189184
2007-04-01	22.6872592507753
2007-07-01	21.3026066482083
2007-10-01	18.7188660026919
2008-01-01	20.0313836105586
2008-04-01	18.7476113719282
2008-07-01	17.2377844181079
2008-10-01	15.9940048235985
2009-01-01	19.4151210171630
2009-04-01	19.6656917994515
2009-07-01	18.1603650779470
2009-10-01	16.6363568945909
2010-01-01	17.7242940828506
2010-04-01	16.9702826841135
2010-07-01	16.0553286822913
2010-10-01	13.4279409568052
2011-01-01	15.3075227650409
2011-04-01	15.1309880073655
2011-07-01	14.8661718349213
2011-10-01	12.5568004553289
2012-01-01	14.4229532443874
2012-04-01	14.3853919657746
2012-07-01	13.0455014266445
2012-10-01	12.0798727563684
2013-01-01	14.0550886698331
2013-04-01	15.1621790203866
2013-07-01	14.2719180859903
2013-10-01	12.5862863210842
2014-01-01	14.0230939191074
2014-04-01	13.6079771895933
2014-07-01	13.9229810738956
2014-10-01	11.9464614389282
2015-01-01	15.7784920961589
2015-04-01	17.8499927655455
2015-07-01	19.8095235171040