Quarter	Percent
1999-04-01	2.61436163110530
1999-07-01	2.71069098655306
1999-10-01	2.37098654233337
2000-01-01	2.16965655924221
2000-04-01	1.98965590035888
2000-07-01	2.07856447496514
2000-10-01	1.82506527415144
2001-01-01	1.72584597737108
2001-04-01	1.71033478893741
2001-07-01	2.07567679486516
2001-10-01	1.86704384724187
2002-01-01	2.05080878771566
2002-04-01	1.98100684162157
2002-07-01	2.22770388830964
2002-10-01	2.16192980681703
2003-01-01	2.18147009924933
2003-04-01	2.11370262390671
2003-07-01	2.55293587625770
2003-10-01	2.18153777269222
2004-01-01	2.09774603883062
2004-04-01	2.13418403936988
2004-07-01	2.36185602519313
2004-10-01	2.14625808814553
2005-01-01	1.98332644678317
2005-04-01	2.06497530744650
2005-07-01	2.32110643415514
2005-10-01	2.17074974356528
2006-01-01	2.08545631206010
2006-04-01	2.17345082567507
2006-07-01	2.51084280858047
2006-10-01	2.10754290771058
2007-01-01	2.57562421827952
2007-04-01	2.76791887531689
2007-07-01	2.74007096257297
2007-10-01	2.60486453341812
2008-01-01	2.81047375912161
2008-04-01	3.26767825241401
2008-07-01	4.06937508435686
2008-10-01	4.24017193516611
2009-01-01	5.47073510241057
2009-04-01	6.59849252876096
2009-07-01	6.93274075377880
2009-10-01	6.61580405435117
2010-01-01	6.72760029880916
2010-04-01	7.26686126901214
2010-07-01	7.38207960722427
2010-10-01	7.34717996979712
2011-01-01	7.24301620983090
2011-04-01	7.48672450339809
2011-07-01	7.77780203943490
2011-10-01	7.42333296955146
2012-01-01	7.58911042275642
2012-04-01	7.68660459233738
2012-07-01	7.71776282846755
2012-10-01	6.95408174363213
2013-01-01	6.89992606445440
2013-04-01	7.19447951586922
2013-07-01	6.73993787875497
2013-10-01	6.00737367165474
2014-01-01	6.12138690721426
2014-04-01	6.06750835177231
2014-07-01	5.91218412725933