Quarter	Percent
1999-01-01	39.6808196236824
1999-04-01	40.2402993894032
1999-07-01	40.1141058430061
1999-10-01	39.4809280377507
2000-01-01	39.9684977357748
2000-04-01	40.5325734499361
2000-07-01	41.5823095823096
2000-10-01	40.6603124692935
2001-01-01	40.6821309219579
2001-04-01	40.9407836590396
2001-07-01	41.7165864676421
2001-10-01	40.7367387033399
2002-01-01	40.9256165864204
2002-04-01	41.5364967089105
2002-07-01	41.1181951937224
2002-10-01	39.4610485056345
2003-01-01	39.5665816826829
2003-04-01	40.0529463672909
2003-07-01	39.7784096480047
2003-10-01	40.3255859566539
2004-01-01	41.1297440423654
2004-04-01	42.6160337552743
2004-07-01	43.4296913277805
2004-10-01	41.4928004701734
2005-01-01	41.6168544830965
2005-04-01	42.5869671729544
2005-07-01	43.1537708129285
2005-10-01	42.5954946131244
2006-01-01	42.0099814071827
2006-04-01	43.8594774439769
2006-07-01	43.1253667123020
2006-10-01	42.2354781928418
2007-01-01	42.3588039867110
2007-04-01	44.1176470588235
2007-07-01	44.4010543786000
2007-10-01	43.2002343063556
2008-01-01	43.0062426843543
2008-04-01	43.9328911431916
2008-07-01	45.2049459643657
2008-10-01	44.5190809968847
2009-01-01	43.3683391676390
2009-04-01	43.7475690392843
2009-07-01	44.3528041917330
2009-10-01	43.3824956336115
2010-01-01	42.8211830767741
2010-04-01	43.3149385226062
2010-07-01	42.5616239729338
2010-10-01	42.5712904784920
2011-01-01	41.0486674391657
2011-04-01	41.6280417149479
2011-07-01	41.8571015331212
2011-10-01	41.4424838491949
2012-01-01	41.5575664227955
2012-04-01	40.6045437042742
2012-07-01	40.6430496726993
2012-10-01	40.4601463226800
2013-01-01	38.8151567609156
2013-04-01	39.6133871898442
2013-07-01	40.2116402116402
2013-10-01	39.6055796055796
2014-01-01	39.4827917708133
2014-04-01	41.0305710440300
2014-07-01	40.3768506056528
2014-10-01	39.6462218804076
2015-01-01	38.9294637709014
2015-04-01	40.4670382471651
2015-07-01	40.5382027871216