Quarter	Percent
1999-01-01	47.8656007631372
1999-04-01	48.6793058460519
1999-07-01	49.3919072516481
1999-10-01	49.1952576670981
2000-01-01	49.3575036780214
2000-04-01	50.1043145737968
2000-07-01	50.8172446014879
2000-10-01	50.7061679636406
2001-01-01	50.5769981891134
2001-04-01	51.1957587458179
2001-07-01	51.6246614239828
2001-10-01	51.4030317926904
2002-01-01	51.1000946639430
2002-04-01	51.5654587815397
2002-07-01	51.7518114959084
2002-10-01	51.4165452485025
2003-01-01	51.4728000781326
2003-04-01	51.9893460869227
2003-07-01	52.3113625255864
2003-10-01	52.0789580162232
2004-01-01	51.8455240462833
2004-04-01	52.2269548298890
2004-07-01	52.6811763194091
2004-10-01	52.7742295646579
2005-01-01	53.0124111055156
2005-04-01	53.5375481115908
2005-07-01	54.2040599287274
2005-10-01	53.9762303951848
2006-01-01	53.8532020935431
2006-04-01	54.2600752184654
2006-07-01	54.7312735714876
2006-10-01	54.2911912368781
2007-01-01	54.1331844224710
2007-04-01	54.5809750522850
2007-07-01	54.7179816736398
2007-10-01	54.0139787637196
2008-01-01	53.4873160177015
2008-04-01	53.0132774965731
2008-07-01	52.3626329893078
2008-10-01	50.3293592705596
2009-01-01	47.9923206650727
2009-04-01	47.4012464868336
2009-07-01	47.0324890714584
2009-10-01	46.2991973951545
2010-01-01	45.4865680546051
2010-04-01	45.9058225184146
2010-07-01	46.0661850078208
2010-10-01	45.2620014706397
2011-01-01	44.6144556699497
2011-04-01	44.7355646229943
2011-07-01	44.5949784760614
2011-10-01	43.5815251328585
2012-01-01	42.3395114873458
2012-04-01	42.2698541151768
2012-07-01	42.2277966754661
2012-10-01	41.3320776205703
2013-01-01	40.5300587443022
2013-04-01	41.0174824867497
2013-07-01	41.3347192614647
2013-10-01	41.0687730291464
2014-01-01	40.5224019170064
2014-04-01	41.7045826007828
2014-07-01	42.4457602403782
2014-10-01	42.2462563866839