Quarter Percent 2008-01-01 4.33768581357003 2008-04-01 4.03604274262790 2008-07-01 4.08492230687693 2008-10-01 4.68995197554889 2009-01-01 5.84345514392904 2009-04-01 6.20306917493535 2009-07-01 6.16336767849596 2009-10-01 6.33105088847744 2010-01-01 7.05247276462706 2010-04-01 6.64466082064838 2010-07-01 6.51875867789451 2010-10-01 6.47253495843192 2011-01-01 6.78996161206348 2011-04-01 6.31510842343754 2011-07-01 6.00204755027489 2011-10-01 5.98592759377899 2012-01-01 6.54969384459185 2012-04-01 6.08631334747215 2012-07-01 5.76741562678111 2012-10-01 6.00733779686611 2013-01-01 6.58785348886314 2013-04-01 6.03595948993211 2013-07-01 5.82368351553821 2013-10-01 5.82832772554823 2014-01-01 6.16839696564395 2014-04-01 5.57936053052102 2014-07-01 5.26469679883464 2014-10-01 5.50342904087554 2015-01-01 5.77925450226910 2015-04-01 5.31453786725712 2015-07-01 5.13753735142813 2015-10-01 5.14670061466218 2016-01-01 5.57638311803716 2016-04-01 5.01920277900512 2016-07-01 4.84212235787320 2016-10-01 4.81759869297148 2017-01-01 5.02410657411722 2017-04-01 4.40552737197363 2017-07-01 4.20057179062485 2017-10-01 4.33094103686278 2018-01-01 4.63601139494514 2018-04-01 4.07721552348494