Quarter	Percent
1998-01-01	38.2128874230940
1998-04-01	38.7531421857092
1998-07-01	39.0390534821085
1998-10-01	38.6831512915838
1999-01-01	38.7738456223851
1999-04-01	38.7308282208589
1999-07-01	38.7026343761671
1999-10-01	38.2940456145722
2000-01-01	38.4799938825059
2000-04-01	39.1458020882092
2000-07-01	39.3871121718377
2000-10-01	39.1553622192967
2001-01-01	38.9581403963697
2001-04-01	39.0822784810127
2001-07-01	39.0648832028397
2001-10-01	38.3400121881406
2002-01-01	38.4696277846963
2002-04-01	39.4741936375955
2002-07-01	39.7181282240236
2002-10-01	39.5388438880707
2003-01-01	39.5795011404606
2003-04-01	40.1218402844778
2003-07-01	40.2880934237948
2003-10-01	39.9447822936445
2004-01-01	39.6845616671860
2004-04-01	40.3816570214636
2004-07-01	40.4038463297926
2004-10-01	40.2374923441171
2005-01-01	40.1432120415023
2005-04-01	40.6599925166778
2005-07-01	40.6724956920524
2005-10-01	40.6491105018173
2006-01-01	40.7927550741786
2006-04-01	41.2154726282185
2006-07-01	41.5159501954012
2006-10-01	41.1264689321975
2007-01-01	40.9389944012413
2007-04-01	41.4549674518124
2007-07-01	41.6301315265046
2007-10-01	41.4165090454944
2008-01-01	41.3095388845674
2008-04-01	41.9361548200398
2008-07-01	41.9474707291714
2008-10-01	41.5603080483043
2009-01-01	41.0844375350241
2009-04-01	41.4445850659917
2009-07-01	41.4556303964559
2009-10-01	40.7682361132461
2010-01-01	40.2320173017582
2010-04-01	40.2006179831278
2010-07-01	39.9045484652446
2010-10-01	38.8707186335968
2011-01-01	37.8705917649305
2011-04-01	37.4981815536805
2011-07-01	36.7415597523164
2011-10-01	35.3428444129227
2012-01-01	34.4407137462579
2012-04-01	33.9869697936125
2012-07-01	33.4686801405174
2012-10-01	32.8652224364304
2013-01-01	32.0507074716691
2013-04-01	32.3566832340207
2013-07-01	32.3687826325914
2013-10-01	31.8990567507860
2014-01-01	31.9637761608970
2014-04-01	32.5090708675883
2014-07-01	32.9854150190359