Quarter	Percent
1995-01-01	59.2830121542389
1995-04-01	58.4231704584307
1995-07-01	57.8441852499683
1995-10-01	57.6823099625256
1996-01-01	57.4837904699838
1996-04-01	57.9509392242278
1996-07-01	58.4896532399833
1996-10-01	59.2033641048744
1997-01-01	59.1118059211832
1997-04-01	60.1077430963725
1997-07-01	60.1395276798810
1997-10-01	59.4700152749512
1998-01-01	58.2046841141965
1998-04-01	58.1845332648374
1998-07-01	59.8246110416041
1998-10-01	59.3394869388243
1999-01-01	59.0317219928400
1999-04-01	60.6227364200729
1999-07-01	60.9826656754105
1999-10-01	60.9069773790370
2000-01-01	60.1484076858316
2000-04-01	61.1440634375581
2000-07-01	60.8307157849100
2000-10-01	60.6439486593836
2001-01-01	60.1845846082711
2001-04-01	61.2850331047469
2001-07-01	61.3805348848472
2001-10-01	60.8126210319027
2002-01-01	62.0215119566502
2002-04-01	63.3145315418979
2002-07-01	63.2131546184485
2002-10-01	64.1308426154836
2003-01-01	64.3536821992966
2003-04-01	65.4371386401752
2003-07-01	65.6169112147054
2003-10-01	66.1060528661697
2004-01-01	65.5302430139459
2004-04-01	66.0968082789187
2004-07-01	65.5407002369782
2004-10-01	66.5415524214122
2005-01-01	66.2996291504002
2005-04-01	66.9181255315598
2005-07-01	67.0005969555220
2005-10-01	66.4893660954480
2006-01-01	65.2296496038116
2006-04-01	66.1162786321342
2006-07-01	66.5024233950918
2006-10-01	66.8353420129800
2007-01-01	66.2133955263436
2007-04-01	67.2220983531904
2007-07-01	67.0313215746260
2007-10-01	67.4560684105062
2008-01-01	66.7501137843207
2008-04-01	66.8239266218747
2008-07-01	66.6624054545923
2008-10-01	67.0537670055179
2009-01-01	66.4887810364985
2009-04-01	67.3998770820229
2009-07-01	67.7332617147491
2009-10-01	67.4273908944805
2010-01-01	66.6112930484894
2010-04-01	67.8198875088379
2010-07-01	68.6355360662593
2010-10-01	68.7925412037256
2011-01-01	67.4899271172084
2011-04-01	68.5758476436604
2011-07-01	68.2142402836150
2011-10-01	68.0718084392322
2012-01-01	67.6994686294767
2012-04-01	68.4807028187802
2012-07-01	68.6271705873971
2012-10-01	69.3191660341573
2013-01-01	68.8233122935406
2013-04-01	70.0285170967023
2013-07-01	69.6635722901446
2013-10-01	69.0937229184823
2014-01-01	68.9019984074137
2014-04-01	70.6571209169980
2014-07-01	69.9382712588990
2014-10-01	69.1533668053654
2015-01-01	69.3845479012731
2015-04-01	71.3663705306408
2015-07-01	71.5771184592349
2015-10-01	70.5497708378305
2016-01-01	70.8210488565916
2016-04-01	71.6426433301560
2016-07-01	71.5477277550622
2016-10-01	71.6152293241907
2017-01-01	71.1001323486910
2017-04-01	70.9827632568154
2017-07-01	70.8947250936026
2017-10-01	71.2058421862604
2018-01-01	70.3203525067124
2018-04-01	71.6385523741250
2018-07-01	71.9480725599526