Quarter	Percent
1998-04-01	41.4846576443789
1999-04-01	43.1315613133795
2000-04-01	44.0852298081214
2001-01-01	45.0903097926550
2001-04-01	46.1214953271028
2001-07-01	46.6395428977968
2001-10-01	45.6984828627913
2002-01-01	45.4747362576346
2002-04-01	46.1837142223208
2002-07-01	46.6399219823574
2002-10-01	45.6676702382006
2003-01-01	45.3433595045892
2003-04-01	46.1728776867172
2003-07-01	46.2337088579633
2003-10-01	45.1835672050128
2004-01-01	44.7072047252772
2004-04-01	45.4211244661648
2004-07-01	45.9950762737943
2004-10-01	44.8699326554866
2005-01-01	44.3328204000879
2005-04-01	45.4258121158911
2005-07-01	45.8636562911004
2005-10-01	45.2744703204343
2006-01-01	44.7656592203241
2006-04-01	45.7546757559867
2006-07-01	46.8820206338474
2006-10-01	45.8719790986283
2007-01-01	45.6599338324917
2007-04-01	46.7748593278151
2007-07-01	47.6556061591846
2007-10-01	46.6132698343977
2008-01-01	46.2318840579710
2008-04-01	47.2009326626222
2008-07-01	47.5604499806043
2008-10-01	46.3048151332760
2009-01-01	45.7004727116459
2009-04-01	46.3054292820997
2009-07-01	46.2656223249444
2009-10-01	45.1068736520681
2010-01-01	44.4949139530420
2010-04-01	45.5025553662692
2010-07-01	46.1106621868753
2010-10-01	45.1830627188793
2011-01-01	45.3629887202103
2011-04-01	46.4914324444539
2011-07-01	47.0789796522696
2011-10-01	46.2714943597110
2012-01-01	45.9833678078433
2012-04-01	46.9590889919865
2012-07-01	47.3767349775690
2012-10-01	46.3682450198784
2013-01-01	46.0256410256410
2013-04-01	47.2114900050395
2013-07-01	47.5934819537361
2013-10-01	46.9231735924933
2014-01-01	46.4216958232192
2014-04-01	47.5785381351504
2014-07-01	48.4959816303100
2014-10-01	47.1296952515946