Month Percent 1999-06-01 4.64541314248536 1999-07-01 4.34610303830912 1999-08-01 4.07565263718700 1999-09-01 3.41670964414647 1999-10-01 2.95579054656644 1999-11-01 2.78781621063500 1999-12-01 2.76131465517241 2000-01-01 3.14865316117542 2000-02-01 3.40813134179598 2000-03-01 3.45808303652118 2000-04-01 2.72514150271348 2000-05-01 2.55609706569195 2000-06-01 2.32077611188106 2000-07-01 2.22512425195253 2000-08-01 2.50109021881333 2000-09-01 2.74670395525370 2000-10-01 2.29913627042814 2000-11-01 2.41736058541509 2000-12-01 2.51236451646848 2001-01-01 2.82958722751997 2001-02-01 3.32522960561858 2001-03-01 2.94388821795421 2001-04-01 2.43676896930921 2001-05-01 2.14418472976133 2001-06-01 2.11002260738508 2001-07-01 2.06414576313491 2001-08-01 2.46348870323467 2001-09-01 1.97820042811800 2001-10-01 2.11598268187085 2001-11-01 1.98716214554487 2001-12-01 2.08766934382063 2002-01-01 2.37490175530521 2002-02-01 2.41870499857035 2002-03-01 2.47149483952883 2002-04-01 2.07015105519184 2002-05-01 1.98860893908678 2002-06-01 1.69000192455735 2002-07-01 1.75160401063648 2002-08-01 1.88353418608380 2002-09-01 1.61465106198526 2002-10-01 1.65993504080923 2002-11-01 1.60157347569542 2002-12-01 1.77519262728509 2003-01-01 2.33717628276431 2003-02-01 2.34102715854541 2003-03-01 2.42645289565999 2003-04-01 2.48698383646010 2003-05-01 2.31316294084808 2003-06-01 2.16933983486752 2003-07-01 2.29440829705005 2003-08-01 2.32723021045823 2003-09-01 2.28820153681548 2003-10-01 2.25812660908063 2003-11-01 2.35717477146756 2003-12-01 2.27417561134089 2004-01-01 2.41488020176545 2004-02-01 2.78240131170348 2004-03-01 2.79695841316896 2004-04-01 2.59867181612660 2004-05-01 2.23580827178382 2004-06-01 2.09258606509223 2004-07-01 2.24957857498991 2004-08-01 2.50793879907621 2004-09-01 2.30132372889284 2004-10-01 2.14661759224748 2004-11-01 2.14550373463506 2004-12-01 2.29753637665636 2005-01-01 2.64267085274959 2005-02-01 2.82501202263956 2005-03-01 2.85132140218764 2005-04-01 2.66616904398129 2005-05-01 2.68254278391394 2005-06-01 2.49466167657796 2005-07-01 2.27504993728806 2005-08-01 2.42838327296674 2005-09-01 2.75745126378441 2005-10-01 2.74836903767579 2005-11-01 2.21299196513687 2005-12-01 2.21023626663540 2006-01-01 2.31967028137731 2006-02-01 2.70804717472647 2006-03-01 2.61593067207523 2006-04-01 2.14902455223965 2006-05-01 2.02986001730372 2006-06-01 2.04395215670668 2006-07-01 1.95124139323121 2006-08-01 2.31827023114850 2006-09-01 2.02672038785517 2006-10-01 2.03545346048987 2006-11-01 2.06307749709194 2006-12-01 2.03854243647320 2007-01-01 2.28400846957548 2007-02-01 2.37337560896583 2007-03-01 2.18719521081602 2007-04-01 2.07342278796627 2007-05-01 1.99641530621059 2007-06-01 2.10051061542596 2007-07-01 2.13259560193001 2007-08-01 2.19390974197762 2007-09-01 2.02908572292932 2007-10-01 2.20021648501216 2007-11-01 2.04296568548430 2007-12-01 2.10112932928047 2008-01-01 2.21364629191612 2008-02-01 2.28129585732024 2008-03-01 2.19303557077274 2008-04-01 2.05580187008191 2008-05-01 1.98179807774092 2008-06-01 1.97776465128054 2008-07-01 1.95734485635442 2008-08-01 1.99552446337012 2008-09-01 2.04813270966579 2008-10-01 2.06392809405029 2008-11-01 2.03184134300273 2008-12-01 1.97204713620170 2009-01-01 2.21204673243325 2009-02-01 2.64195717272162 2009-03-01 2.63436239836055 2009-04-01 2.68733682870520 2009-05-01 2.73723797517041 2009-06-01 2.78909201898688 2009-07-01 2.31953523703553 2009-08-01 2.35503533092400 2009-09-01 2.19407133914741 2009-10-01 2.22189445737945 2009-11-01 2.24769371711017 2009-12-01 2.49684014457724 2010-01-01 4.21195803650066 2010-02-01 3.84980404854683 2010-03-01 3.03688106453644 2010-04-01 2.55850266928320 2010-05-01 2.15154740290908 2010-06-01 2.26079013473396 2010-07-01 2.55531285599323 2010-08-01 2.60190439956459 2010-09-01 2.91250000000000 2010-10-01 2.67924881262926 2010-11-01 2.06176882496025 2010-12-01 2.49767733293002 2011-01-01 2.85844626922135 2011-02-01 3.90308821764789 2011-03-01 3.58174526754632 2011-04-01 2.85749679976876 2011-05-01 2.59483466674779 2011-06-01 2.54175890521232 2011-07-01 2.29959364610270 2011-08-01 2.28732814003290 2011-09-01 2.29081288582248 2011-10-01 2.06081494473223 2011-11-01 2.10599993824047 2011-12-01 2.14350898788175 2012-01-01 2.54986278280787 2012-02-01 3.63316073239737 2012-03-01 2.87640309174321 2012-04-01 2.60736820679829 2012-05-01 2.24921457587097 2012-06-01 2.31747395339080 2012-07-01 2.12188976696652 2012-08-01 2.29192660925771 2012-09-01 2.21258616855682 2012-10-01 2.21782937136287 2012-11-01 2.01900962693098 2012-12-01 1.88740918820317 2013-01-01 2.43952131766321 2013-02-01 2.91484112467566 2013-03-01 2.60036733042098 2013-04-01 2.23702185792350 2013-05-01 2.22958363914070 2013-06-01 2.30006309645871 2013-07-01 2.10239381473956 2013-08-01 2.12906189458547 2013-09-01 1.88068536133905 2013-10-01 1.88981642626078 2013-11-01 1.93301643459269 2013-12-01 2.23589282429643 2014-01-01 2.73578188047595 2014-02-01 4.04562104900001 2014-03-01 3.04397180069303 2014-04-01 3.21899429434957 2014-05-01 3.19015806395718 2014-06-01 3.00113577299940 2014-07-01 2.78608699019352 2014-08-01 2.66383300823896 2014-09-01 2.49644951549171 2014-10-01 2.53469313071197 2014-11-01 2.41071945360884 2014-12-01 2.52688868731372 2015-01-01 2.95136959311313 2015-02-01 3.88074252402459 2015-03-01 3.32450461055523 2015-04-01 3.26848474321116 2015-05-01 3.22709770881781 2015-06-01 2.92254357220877 2015-07-01 2.68315690179227 2015-08-01 2.74960213218799 2015-09-01 2.37753189546090 2015-10-01 2.44145632727480 2015-11-01 2.19385567992379 2015-12-01 2.49494005916239 2016-01-01 2.82707961087949 2016-02-01 4.16324133881386 2016-03-01 3.09450361833809 2016-04-01 3.06788760280232 2016-05-01 2.78018214662050 2016-06-01 2.57524424464820 2016-07-01 2.49132140970493 2016-08-01 2.73775080341913 2016-09-01 2.71134320242258 2016-10-01 2.69553648390361 2016-11-01 2.64625519332260 2016-12-01 2.76634725139804 2017-01-01 3.23458813886775 2017-02-01 4.27223526030940 2017-03-01 3.37287719364528 2017-04-01 3.26521504676547 2017-05-01 2.74907407407407 2017-06-01 2.86624203821656 2017-07-01 2.66230647008831 2017-08-01 2.72670036849805 2017-09-01 2.51652098785857 2017-10-01 2.51058293170115 2017-11-01 2.47328104215403 2017-12-01 2.57355707728196 2018-01-01 3.32931634722063 2018-02-01 4.37598376666477 2018-03-01 3.54002024460686 2018-04-01 3.30496155639462 2018-05-01 3.00796921233685 2018-06-01 3.00168115837235 2018-07-01 2.87260161862326 2018-08-01 3.20992373359544 2018-09-01 2.96212498303091