Quarter	Percent
1999-04-01	42.4359761796673
1999-07-01	44.3562774597257
1999-10-01	43.6393981138074
2000-01-01	43.6206805313013
2000-04-01	44.1049187249314
2000-07-01	45.6784276580630
2000-10-01	44.7154046997389
2001-01-01	44.6034725480995
2001-04-01	44.7572260345186
2001-07-01	46.2989802784823
2001-10-01	45.2590973383053
2002-01-01	44.9511651157425
2002-04-01	45.0270601450015
2002-07-01	45.9883528723648
2002-10-01	45.0667543238596
2003-01-01	44.9292155776110
2003-04-01	45.0738916256158
2003-07-01	45.9628572858788
2003-10-01	45.4938931867366
2004-01-01	45.5230727268219
2004-04-01	45.4089076835571
2004-07-01	46.5876100969345
2004-10-01	46.2458796239775
2005-01-01	46.3845611647182
2005-04-01	46.7028178561054
2005-07-01	47.8604930847865
2005-10-01	47.2460103528065
2006-01-01	47.5104865274783
2006-04-01	47.7497696614614
2006-07-01	48.6906576016880
2006-10-01	48.2545818681447
2007-01-01	50.6531708898874
2007-04-01	51.0117538603365
2007-07-01	51.5554538170997
2007-10-01	50.7096950014762
2008-01-01	50.1434606782188
2008-04-01	50.2046538974695
2008-07-01	49.7098123903361
2008-10-01	48.0567744246440
2009-01-01	45.3854481981484
2009-04-01	44.7238506633755
2009-07-01	44.1530439374271
2009-10-01	43.3226331295897
2010-01-01	42.5363624379312
2010-04-01	42.5345126528104
2010-07-01	42.3154480098194
2010-10-01	41.5333435468692
2011-01-01	41.1349069192571
2011-04-01	41.5222569436857
2011-07-01	41.1642684018604
2011-10-01	41.2135763396268
2012-01-01	40.6439509619999
2012-04-01	40.9472513574217
2012-07-01	41.0837524220060
2012-10-01	41.1806930154656
2013-01-01	41.1451311268647
2013-04-01	41.9304279681310
2013-07-01	42.6030104911054
2013-10-01	42.7434396009542
2014-01-01	42.2967669189236
2014-04-01	42.7393813180615
2014-07-01	43.5373412509211