Quarter	Percent
1999-04-01	42.2821728034998
2000-01-01	41.1039850111696
2000-04-01	42.2311905448256
2000-07-01	42.6496888189427
2000-10-01	42.1169398124955
2001-01-01	41.8989169675090
2001-04-01	42.0664739884393
2001-07-01	43.2170962385387
2001-10-01	43.2303350459512
2002-01-01	42.3420155263731
2002-04-01	42.7336771007335
2002-07-01	43.3423023780089
2002-10-01	43.0306998399534
2003-01-01	42.8247014870705
2003-04-01	43.6776556776557
2003-07-01	45.0175336060783
2003-10-01	45.0172072929633
2004-01-01	44.3442259352358
2004-04-01	44.5501474926254
2004-07-01	44.3738924985233
2004-10-01	44.5257092198582
2005-01-01	44.5391858827019
2005-04-01	45.7359162769984
2005-07-01	46.0007426661716
2005-10-01	46.3183600976837
2006-01-01	47.4717430101130
2006-04-01	48.7349307932728
2006-07-01	48.7739634418190
2006-10-01	48.7788582881746
2007-01-01	48.5163315643920
2007-04-01	49.3645334928230
2007-07-01	49.6152409413523
2007-10-01	49.0809922295278
2008-01-01	49.2133652981720
2008-04-01	49.0973106599745
2008-07-01	49.4080623407763
2008-10-01	48.9935406339192
2009-01-01	45.8922660246765
2009-04-01	44.3534450371929
2009-07-01	44.7879924953096
2009-10-01	43.4364674076299
2010-01-01	41.4861612515042
2010-04-01	41.8944356599654
2010-07-01	43.2043949428055
2010-10-01	44.3959352653368
2011-01-01	44.1511426201071
2011-04-01	44.9920868189012
2011-07-01	46.8646367199276
2011-10-01	45.9119022476995
2012-01-01	45.7885168913801
2012-04-01	46.5363043807791
2012-07-01	47.3947288700394
2012-10-01	46.5823934599955
2013-01-01	46.4024946759963
2013-04-01	48.0246163197082
2013-07-01	47.6411152472841
2013-10-01	46.8303435694740
2014-01-01	46.1702614130021
2014-04-01	47.9692143564734
2014-07-01	48.3039865843433