Quarter	Percent
1995-01-01	17.0363165046407
1995-04-01	16.5902687565719
1995-07-01	16.3359857882569
1995-10-01	16.8548773526649
1996-01-01	17.1929495850081
1996-04-01	16.6482379022681
1996-07-01	16.1463740546995
1996-10-01	16.4524893036095
1997-01-01	16.9914611229606
1997-04-01	16.0585672277185
1997-07-01	15.6513879326267
1997-10-01	15.7256308295952
1998-01-01	16.2951077809063
1998-04-01	15.4938032481752
1998-07-01	15.4255103287898
1998-10-01	15.5269177711731
1999-01-01	16.0136548103654
1999-04-01	15.0342575624715
1999-07-01	15.0445858575928
1999-10-01	15.4455093975703
2000-01-01	15.8533538243465
2000-04-01	15.0350672840271
2000-07-01	15.0274625177533
2000-10-01	15.0836522557650
2001-01-01	15.3995002970149
2001-04-01	14.5468511533031
2001-07-01	14.8923708485228
2001-10-01	14.9271697050607
2002-01-01	15.0321990321984
2002-04-01	13.8919665551776
2002-07-01	13.6268896699150
2002-10-01	13.8032804362556
2003-01-01	14.3266448024040
2003-04-01	13.4554206130564
2003-07-01	13.2961223412346
2003-10-01	13.3955789953717
2004-01-01	13.9354805020304
2004-04-01	13.0629862457930
2004-07-01	13.3738685884451
2004-10-01	13.4594791328916
2005-01-01	13.9653988880922
2005-04-01	13.4739921982273
2005-07-01	13.6292162479698
2005-10-01	13.7956998122981
2006-01-01	14.4964943203598
2006-04-01	13.4688503808935
2006-07-01	13.6325387362911
2006-10-01	13.7653030184780
2007-01-01	13.8163845699630
2007-04-01	13.2200195135109
2007-07-01	13.3195487866772
2007-10-01	13.3096556605055
2008-01-01	13.7149196890940
2008-04-01	13.0778113832503
2008-07-01	13.2481769827792
2008-10-01	13.2058063743813
2009-01-01	13.8162818354600
2009-04-01	13.2540072597092
2009-07-01	13.5646209626231
2009-10-01	13.5374188285864
2010-01-01	13.9413841273674
2010-04-01	13.1050750343394
2010-07-01	13.2396941293266
2010-10-01	13.8489092302530
2011-01-01	14.0592106689220
2011-04-01	13.3251533803989
2011-07-01	13.3718788804252
2011-10-01	13.6359626481941
2012-01-01	14.1828546291419
2012-04-01	13.0933842170221
2012-07-01	13.1019483467970
2012-10-01	13.0621356797571
2013-01-01	13.7245611746726
2013-04-01	13.0732075221172
2013-07-01	13.0881526457409
2013-10-01	13.3326821167648
2014-01-01	14.0103147280152
2014-04-01	13.7442917835761
2014-07-01	13.7870922991020
2014-10-01	13.6729818581081
2015-01-01	14.1642186172268
2015-04-01	13.4454103064014
2015-07-01	13.3058746079299
2015-10-01	13.3569329205607
2016-01-01	13.7413940441315
2016-04-01	13.2506445597330
2016-07-01	13.5701671735860
2016-10-01	13.3786477197916
2017-01-01	13.3200169953438
2017-04-01	12.6496458537612
2017-07-01	12.8844585387592
2017-10-01	13.1753340635274
2018-01-01	13.6807676427062
2018-04-01	12.9218239109231
2018-07-01	12.8347646003889