Quarter Percent 2005-01-01 3.73953137492595 2005-04-01 3.51156524004357 2005-07-01 3.59366712637969 2005-10-01 3.08317430496814 2006-01-01 3.56925765447342 2006-04-01 3.04667958818780 2006-07-01 3.79284401838303 2006-10-01 3.55619629428730 2007-01-01 3.84386361544074 2007-04-01 3.25750291098479 2007-07-01 3.64453175223635 2007-10-01 3.40890084701509 2008-01-01 3.87204519106710 2008-04-01 3.34980744896524 2008-07-01 4.13040819753879 2008-10-01 4.37007474611184 2009-01-01 5.22060053673596 2009-04-01 5.53091651630005 2009-07-01 5.97593163531655 2009-10-01 5.55749599308232 2010-01-01 5.54105381736755 2010-04-01 5.37240681108887 2010-07-01 5.66213209127514 2010-10-01 5.77360698405314 2011-01-01 5.48320648968884 2011-04-01 5.44098184419302 2011-07-01 5.53155520801356 2011-10-01 5.10825173909574 2012-01-01 5.22200138837456 2012-04-01 4.92520668197985 2012-07-01 5.17473050413316 2012-10-01 5.02536717470047 2013-01-01 5.05286391508214 2013-04-01 5.16927224871718 2013-07-01 5.33719340315591 2013-10-01 4.74897007441845 2014-01-01 4.93156840505643 2014-04-01 5.13939624385603 2014-07-01 5.43692368544257 2014-10-01 4.43748705504114 2015-01-01 4.45153663042712 2015-04-01 4.38762745743346 2015-07-01 4.63397449317580 2015-10-01 4.20256871403501 2016-01-01 4.20777166317872 2016-04-01 4.08539346669200 2016-07-01 4.07366000247371 2016-10-01 3.64389134497078 2017-01-01 3.44210400869729 2017-04-01 3.46867280005127 2017-07-01 3.54860925931951 2017-10-01 3.35860890759413 2018-01-01 3.20277038045816 2018-04-01 3.51583964152036