Quarter	Percent
1999-04-01	46.6408423449456
1999-07-01	47.0968267560662
1999-10-01	47.1676096425925
2000-01-01	46.9664464828841
2000-04-01	47.1437661893020
2000-07-01	47.5923028299638
2000-10-01	47.4145274826089
2001-01-01	47.3387588802829
2001-04-01	47.4239765225793
2001-07-01	47.6964485338378
2001-10-01	47.7151655542648
2002-01-01	47.4485423554163
2002-04-01	47.5663633274176
2002-07-01	47.8541618800388
2002-10-01	47.9272215314103
2003-01-01	47.7075756072358
2003-04-01	47.8763066350994
2003-07-01	48.1100946873032
2003-10-01	48.1198173030021
2004-01-01	48.1552789316395
2004-04-01	48.1077602936070
2004-07-01	48.2765534807927
2004-10-01	48.3984522045233
2005-01-01	48.4614159783721
2005-04-01	48.2814411895619
2005-07-01	48.6280438877298
2005-10-01	48.4653090543646
2006-01-01	48.4613027490807
2006-04-01	48.4970384746042
2006-07-01	48.7865678932764
2006-10-01	48.6922274719416
2007-01-01	48.3491340323607
2007-04-01	48.4730992146794
2007-07-01	48.7915362489072
2007-10-01	48.9521708780307
2008-01-01	48.7869180766339
2008-04-01	48.7553420133270
2008-07-01	48.7037904998186
2008-10-01	48.5230302108209
2009-01-01	47.8291575859865
2009-04-01	47.2964532606065
2009-07-01	47.4196164963058
2009-10-01	47.3690987054515
2010-01-01	46.8951519123834
2010-04-01	47.1060973154144
2010-07-01	47.5441798252077
2010-10-01	47.3350276360922
2011-01-01	47.2038789223925
2011-04-01	47.1148986037288
2011-07-01	47.0255216840361
2011-10-01	47.0176687966741
2012-01-01	46.8725124168937
2012-04-01	47.1575462948156
2012-07-01	47.4732707589524
2012-10-01	47.6252246968982
2013-01-01	47.2366927853035
2013-04-01	47.3267654028248
2013-07-01	47.7125105678316
2013-10-01	47.9334210538816
2014-01-01	48.0007148211524
2014-04-01	48.1832069742632
2014-07-01	48.5166387857136
2014-10-01	48.5766101316354