Quarter	Percent
2005-01-01	29.5635206850120
2005-04-01	29.3030496773785
2005-07-01	28.9358222649172
2005-10-01	28.6307114421125
2006-01-01	28.6451887546671
2006-04-01	28.3738829229928
2006-07-01	27.9820743911554
2006-10-01	27.9147233276914
2007-01-01	28.3035341452366
2007-04-01	27.8852317450309
2007-07-01	28.1972039066394
2007-10-01	27.5152889926158
2008-01-01	27.9251222379981
2008-04-01	27.5105271615333
2008-07-01	28.0497527243148
2008-10-01	28.1629533056231
2009-01-01	27.9728569108073
2009-04-01	27.7764345774312
2009-07-01	26.7198971983873
2009-10-01	27.1236028702176
2010-01-01	27.9324356811089
2010-04-01	26.9519092652938
2010-07-01	27.5759503809998
2010-10-01	28.1762582021260
2011-01-01	27.9901013518654
2011-04-01	27.2308755635082
2011-07-01	27.1113846655932
2011-10-01	26.5362471374094
2012-01-01	27.0112708694960
2012-04-01	26.0070042472489
2012-07-01	26.0187857969820
2012-10-01	26.5084343092636
2013-01-01	26.9083887214935
2013-04-01	26.0592343900981
2013-07-01	26.2247356890776
2013-10-01	25.8903795795312
2014-01-01	26.8933592159956
2014-04-01	26.8036033310722
2014-07-01	26.9876001101882
2014-10-01	26.8930254135987
2015-01-01	27.0222542866176
2015-04-01	26.4822967597277
2015-07-01	26.5961921253043
2015-10-01	25.7622499732899
2016-01-01	26.3948246241302
2016-04-01	26.2786868080316
2016-07-01	26.2602418007629
2016-10-01	26.3380393637420
2017-01-01	26.5540296423341
2017-04-01	26.4626585033506
2017-07-01	26.6429368375461
2017-10-01	26.3338921750369
2018-01-01	26.5228199406382
2018-04-01	25.8893117505304