Quarter	Percent
1995-01-01	24.0629333466628
1995-04-01	24.2520083751900
1995-07-01	24.4541660131283
1995-10-01	24.3519620204601
1996-01-01	24.3608469592971
1996-04-01	24.1544627410899
1996-07-01	23.8879404268112
1996-10-01	23.5136864086114
1997-01-01	23.7669250584513
1997-04-01	22.9864960391219
1997-07-01	23.1163592428690
1997-10-01	22.5746752161355
1998-01-01	22.7644432193454
1998-04-01	22.2876071647556
1998-07-01	22.5718656966327
1998-10-01	22.1625805193062
1999-01-01	22.2276708727352
1999-04-01	21.4857137078377
1999-07-01	21.7034345527088
1999-10-01	21.7933770966606
2000-01-01	21.9794209247646
2000-04-01	21.3119440913066
2000-07-01	21.6857553191036
2000-10-01	21.1040766517722
2001-01-01	21.3093930589486
2001-04-01	20.4982784305600
2001-07-01	21.0718540056952
2001-10-01	20.8418018374588
2002-01-01	20.5400139422054
2002-04-01	19.4516146458236
2002-07-01	19.4209495764004
2002-10-01	19.1174168484038
2003-01-01	19.5665500203397
2003-04-01	18.8389191537352
2003-07-01	18.8096415440920
2003-10-01	18.2650312523573
2004-01-01	18.6777101562414
2004-04-01	17.9917752804620
2004-07-01	18.7901024838573
2004-10-01	18.4665188294255
2005-01-01	18.7327074646250
2005-04-01	18.7289687420914
2005-07-01	19.2545539265892
2005-10-01	18.8775940454946
2006-01-01	19.2934889745697
2006-04-01	18.3575912390967
2006-07-01	19.0427468413849
2006-10-01	18.3406414933764
2007-01-01	17.9903663643884
2007-04-01	17.6444872214789
2007-07-01	18.0928181783836
2007-10-01	17.8873893693586
2008-01-01	18.3659924637980
2008-04-01	17.9816511535390
2008-07-01	18.2390144146407
2008-10-01	17.7870906402184
2009-01-01	18.0673767687847
2009-04-01	17.6763307785549
2009-07-01	18.1741488535623
2009-10-01	17.5791261591858
2010-01-01	17.5722894765585
2010-04-01	17.2555579211902
2010-07-01	17.7414084094645
2010-10-01	18.0699207351549
2011-01-01	18.0520961102533
2011-04-01	17.7621561178904
2011-07-01	17.8374764469269
2011-10-01	17.6884369472579
2012-01-01	18.1614087578144
2012-04-01	17.4367775477174
2012-07-01	17.5697970933685
2012-10-01	16.9779877739388
2013-01-01	17.4094143939000
2013-04-01	17.0544520583166
2013-07-01	17.2992501022754
2013-10-01	17.3674968089013
2014-01-01	17.9466771579319
2014-04-01	17.9558454767633
2014-07-01	18.5209446195569
2014-10-01	17.9389816171567
2015-01-01	18.2299459224413
2015-04-01	17.7276597977281
2015-07-01	18.1031885040416
2015-10-01	17.9510347076623
2016-01-01	17.9288034570244
2016-04-01	17.4258811772787
2016-07-01	18.2053259640488
2016-10-01	17.7288374327999
2017-01-01	17.0949563106425
2017-04-01	16.7681926045768
2017-07-01	17.1780242218611
2017-10-01	17.2137470142345
2018-01-01	17.5450793012342
2018-04-01	16.7314174017968
2018-07-01	16.7431315444061