Quarter	Percent
1999-04-01	1.82697474476088
2000-04-01	1.62815126050420
2001-04-01	1.81441161223432
2002-04-01	2.72073921971253
2003-01-01	3.05654610290372
2003-04-01	3.34346504559270
2003-07-01	2.17062089853609
2003-10-01	2.28774783934926
2004-01-01	2.42057488653555
2004-04-01	3.31658291457286
2004-07-01	1.96177062374245
2004-10-01	1.89337319382162
2005-01-01	2.34063745019920
2005-04-01	2.42694403169886
2005-07-01	1.39581256231306
2005-10-01	2.11614173228346
2006-01-01	1.84555609519184
2006-04-01	3.38740458015267
2006-07-01	2.08728652751423
2006-10-01	2.03309692671395
2007-01-01	1.54277699859748
2007-04-01	2.67404333794375
2007-07-01	1.64533820840951
2007-10-01	1.54897494305239
2008-01-01	1.77434030937216
2008-04-01	2.51685393258427
2008-07-01	2.08796090626388
2008-10-01	3.26621923937360
2009-01-01	5.58284948637785
2009-04-01	7.39091718610864
2009-07-01	4.86705723298783
2009-10-01	5.36277602523659
2010-01-01	5.98290598290598
2010-04-01	7.21973094170404
2010-07-01	5.19480519480520
2010-10-01	5.89812332439678
2011-01-01	6.12612612612613
2011-04-01	6.96739615899955
2011-07-01	4.70901821412705
2011-10-01	4.68750000000000
2012-01-01	5.42357687135814
2012-04-01	5.94546267322307
2012-07-01	4.02684563758389
2012-10-01	3.74832663989290
2013-01-01	4.56357997341604
2013-04-01	5.66873339238264
2013-07-01	3.55887521968366
2013-10-01	3.58862144420131
2014-01-01	4.54744206383909
2014-04-01	4.86415425065732
2014-07-01	3.25097529258778