Quarter	Percent
1991-01-01	6.67831289953127
1991-04-01	6.64542051174969
1991-07-01	6.90111684595490
1991-10-01	6.85163791707737
1992-01-01	7.23707554776151
1992-04-01	7.16489596918788
1992-07-01	7.57385067538499
1992-10-01	7.29395492290002
1993-01-01	7.58938965041190
1993-04-01	7.48057962068967
1993-07-01	7.60070600562529
1993-10-01	7.48202948340396
1994-01-01	7.81025258539691
1994-04-01	7.39163506125374
1994-07-01	7.41067622536424
1994-10-01	7.02301871718040
1995-01-01	7.29343987894836
1995-04-01	7.13513484674952
1995-07-01	7.34037754901460
1995-10-01	7.00952534264805
1996-01-01	7.29474034847038
1996-04-01	7.05412261269977
1996-07-01	7.16536526070355
1996-10-01	7.02882311896813
1997-01-01	7.26090289498477
1997-04-01	7.00128109254717
1997-07-01	6.97729901178270
1997-10-01	6.65757202703014
1998-01-01	6.96467896705153
1998-04-01	6.76490467813878
1998-07-01	6.82068474656600
1998-10-01	6.55914219984998
1999-01-01	6.79780567016673
1999-04-01	6.53232141077742
1999-07-01	6.55510481548002
1999-10-01	6.04939947608791
2000-01-01	6.30811794424106
2000-04-01	6.04467217960262
2000-07-01	6.10695547556502
2000-10-01	5.61656775421385
2001-01-01	5.93164398752944
2001-04-01	5.83296392837497
2001-07-01	6.22151509060580
2001-10-01	6.18525701245387
2002-01-01	6.57317628083491
2002-04-01	6.57497787456866
2002-07-01	6.61585890280281
2002-10-01	6.30637821054962
2003-01-01	6.64330021978105
2003-04-01	6.60829298423355
2003-07-01	6.73485525448082
2003-10-01	6.32648752699009
2004-01-01	6.61680235707526
2004-04-01	6.36213096397172
2004-07-01	6.51128067146130
2004-10-01	6.21486802025469
2005-01-01	6.38480883443617
2005-04-01	6.23030167168471
2005-07-01	6.38038888417950
2005-10-01	6.23277603004596
2006-01-01	6.13872325695462
2006-04-01	5.83430878410243
2006-07-01	6.05576931474222
2006-10-01	5.56921489712630
2007-01-01	5.56569136675318
2007-04-01	5.34107566158280
2007-07-01	5.63969836565578
2007-10-01	5.36590315581832
2008-01-01	5.50283654636769
2008-04-01	5.59324214855500
2008-07-01	6.04855665520279
2008-10-01	5.95511015990434
2009-01-01	6.94673032450122
2009-04-01	7.28550007014904
2009-07-01	7.85313020589032
2009-10-01	7.47698465742755
2010-01-01	7.64303951959973
2010-04-01	7.53180169669896
2010-07-01	7.78294884931464
2010-10-01	7.46978320046558
2011-01-01	7.42920729233259
2011-04-01	7.28852215359699
2011-07-01	7.67789995595508
2011-10-01	7.18854962266374
2012-01-01	7.39333455551258
2012-04-01	7.21367005933936
2012-07-01	7.39037076127910
2012-10-01	7.02337336236400
2013-01-01	7.22541644790552
2013-04-01	6.88114286011256
2013-07-01	6.88846852594072
2013-10-01	6.51939793264975
2014-01-01	6.55766970430887
2014-04-01	6.16699390170770
2014-07-01	6.42941320700651
2014-10-01	5.93402428879552
2015-01-01	5.85420962723443
2015-04-01	5.66986906969724
2015-07-01	5.71664045275634
2015-10-01	5.33094559467723
2016-01-01	5.47571048149745
2016-04-01	5.33236620188484
2016-07-01	5.44937944857667
2016-10-01	5.05860550043905
2017-01-01	5.17590705556143
2017-04-01	4.88379622822505
2017-07-01	5.03619155132472
2017-10-01	4.55796477698699
2018-01-01	4.71514936421193