Month	Percent
1986-01-01	17.40000000000000
1986-02-01	17.23000000000000
1986-03-01	16.27000000000000
1986-04-01	15.37000000000000
1986-05-01	14.88000000000000
1986-06-01	14.72000000000000
1986-07-01	14.72000000000000
1986-08-01	14.88000000000000
1986-09-01	14.63000000000000
1986-10-01	14.16000000000000
1986-11-01	13.32000000000000
1986-12-01	13.45000000000000
1987-01-01	14.16000000000000
1987-02-01	14.51000000000000
1987-03-01	14.53000000000000
1987-04-01	14.93000000000000
1987-05-01	15.66000000000000
1987-06-01	15.84000000000000
1987-07-01	15.08000000000000
1987-08-01	14.57000000000000
1987-09-01	14.42000000000000
1987-10-01	13.04000000000000
1987-11-01	12.91000000000000
1987-12-01	12.65000000000000
1988-01-01	14.07000000000000
1988-02-01	14.19000000000000
1988-03-01	14.34000000000000
1988-04-01	14.07000000000000
1988-05-01	14.50000000000000
1988-06-01	14.49000000000000
1988-07-01	14.64000000000000
1988-08-01	14.27000000000000
1988-09-01	13.19000000000000
1988-10-01	12.07000000000000
1988-11-01	11.28000000000000
1988-12-01	10.98000000000000
1989-01-01	10.92000000000000
1989-02-01	11.10000000000000
1989-03-01	11.46000000000000
1989-04-01	11.49000000000000
1989-05-01	11.37000000000000
1989-06-01	10.88000000000000
1989-07-01	10.87000000000000
1989-08-01	10.20000000000000
1989-09-01	10.18000000000000
1989-10-01	9.88000000000000
1989-11-01	9.53000000000000
1989-12-01	9.49000000000000
1990-01-01	9.24000000000000
1990-02-01	9.69000000000000
1990-03-01	9.90000000000000
1990-04-01	10.26000000000000
1990-05-01	10.12000000000000
1990-06-01	9.90000000000000
1990-07-01	9.68000000000000
1990-08-01	9.54000000000000
1990-09-01	9.39000000000000
1990-10-01	9.61000000000000
1990-11-01	9.23000000000000
1990-12-01	9.51000000000000
1991-01-01	9.66000000000000
1991-02-01	10.44000000000000
1991-03-01	10.34000000000000
1991-04-01	10.08000000000000
1991-05-01	9.96000000000000
1991-06-01	10.60000000000000
1991-07-01	11.19000000000000
1991-08-01	11.43000000000000
1991-09-01	10.93000000000000
1991-10-01	10.30000000000000
1991-11-01	9.41000000000000
1991-12-01	9.09000000000000
1992-01-01	8.82000000000000
1992-02-01	9.07000000000000
1992-03-01	8.81000000000000
1992-04-01	8.39000000000000
1992-05-01	8.44000000000000
1992-06-01	8.36000000000000
1992-07-01	9.17000000000000
1992-08-01	9.48000000000000
1992-09-01	9.65000000000000
1992-10-01	9.03000000000000
1992-11-01	8.89000000000000
1992-12-01	9.07000000000000
1993-01-01	9.17000000000000
1993-02-01	9.36000000000000
1993-03-01	8.92000000000000
1993-04-01	8.81000000000000
1993-05-01	8.64000000000000
1993-06-01	8.83000000000000
1993-07-01	9.28000000000000
1993-08-01	9.33000000000000
1993-09-01	8.92000000000000
1993-10-01	8.33000000000000
1993-11-01	8.79000000000000
1993-12-01	10.03000000000000
1994-01-01	10.48000000000000
1994-02-01	10.48000000000000
1994-03-01	10.14000000000000
1994-04-01	10.46000000000000
1994-05-01	10.35000000000000
1994-06-01	10.06000000000000
1994-07-01	9.95000000000000
1994-08-01	9.92000000000000
1994-09-01	10.64000000000000
1994-10-01	10.88000000000000
1994-11-01	10.33000000000000
1994-12-01	9.91000000000000
1995-01-01	9.59000000000000
1995-02-01	9.90000000000000
1995-03-01	9.66000000000000
1995-04-01	9.83000000000000
1995-05-01	9.84000000000000
1995-06-01	9.81000000000000
1995-07-01	9.59000000000000
1995-08-01	9.48000000000000
1995-09-01	9.26000000000000
1995-10-01	8.97000000000000
1995-11-01	8.86000000000000
1995-12-01	9.55000000000000
1996-01-01	9.35000000000000
1996-02-01	8.87000000000000
1996-03-01	8.08000000000000
1996-04-01	8.06000000000000
1996-05-01	8.15000000000000
1996-06-01	8.37000000000000
1996-07-01	8.28000000000000
1996-08-01	7.83000000000000
1996-09-01	7.29000000000000
1996-10-01	6.97000000000000
1996-11-01	6.68000000000000
1996-12-01	6.86000000000000
1997-01-01	7.06000000000000
1997-02-01	7.77000000000000
1997-03-01	7.86000000000000
1997-04-01	8.29000000000000
1997-05-01	8.06000000000000
1997-06-01	8.12000000000000
1997-07-01	8.04000000000000
1997-08-01	8.27000000000000
1997-09-01	7.90000000000000
1997-10-01	7.23000000000000
1997-11-01	6.56000000000000
1997-12-01	6.73000000000000
1998-01-01	6.86000000000000
1998-02-01	6.98000000000000
1998-03-01	6.90000000000000
1998-04-01	7.04000000000000
1998-05-01	7.66000000000000
1998-06-01	8.00000000000000
1998-07-01	8.34000000000000
1998-08-01	8.13000000000000
1998-09-01	7.85000000000000
1998-10-01	7.80000000000000
1998-11-01	7.67000000000000
1998-12-01	8.07000000000000
1999-01-01	7.93000000000000
1999-02-01	8.84000000000000
1999-03-01	9.53000000000000
1999-04-01	10.79000000000000
1999-05-01	11.77000000000000
1999-06-01	12.05000000000000
1999-07-01	12.08000000000000
1999-08-01	12.30000000000000
1999-09-01	12.29000000000000
1999-10-01	11.69000000000000
1999-11-01	10.48000000000000
1999-12-01	9.87000000000000
2000-01-01	9.66000000000000
2000-02-01	10.20000000000000
2000-03-01	10.21000000000000
2000-04-01	10.37000000000000
2000-05-01	10.10000000000000
2000-06-01	10.90000000000000
2000-07-01	11.27000000000000
2000-08-01	11.68000000000000
2000-09-01	10.88000000000000
2000-10-01	10.48000000000000
2000-11-01	9.37000000000000
2000-12-01	9.77000000000000
2001-01-01	9.79000000000000
2001-02-01	10.39000000000000
2001-03-01	10.41000000000000
2001-04-01	10.75000000000000
2001-05-01	10.38000000000000
2001-06-01	10.37000000000000
2001-07-01	10.35000000000000
2001-08-01	10.81000000000000
2001-09-01	10.67000000000000
2001-10-01	9.69000000000000
2001-11-01	8.84000000000000
2001-12-01	9.19000000000000
2002-01-01	10.01000000000000
2002-02-01	10.58000000000000
2002-03-01	10.30000000000000
2002-04-01	10.42000000000000
2002-05-01	10.48000000000000
2002-06-01	10.10000000000000
2002-07-01	10.12000000000000
2002-08-01	10.42000000000000
2002-09-01	10.45000000000000
2002-10-01	10.05000000000000
2002-11-01	9.10000000000000
2002-12-01	8.98000000000000
2003-01-01	9.46000000000000
2003-02-01	10.48000000000000
2003-03-01	11.51000000000000
2003-04-01	11.24000000000000
2003-05-01	10.96000000000000
2003-06-01	10.59000000000000
2003-07-01	11.12000000000000
2003-08-01	10.97000000000000
2003-09-01	10.35000000000000
2003-10-01	9.48000000000000
2003-11-01	8.89000000000000
2003-12-01	8.87000000000000
2004-01-01	9.17000000000000
2004-02-01	10.42000000000000
2004-03-01	11.59000000000000
2004-04-01	12.11000000000000
2004-05-01	11.95000000000000
2004-06-01	11.59000000000000
2004-07-01	12.21000000000000
2004-08-01	12.19000000000000
2004-09-01	11.98000000000000
2004-10-01	11.16000000000000
2004-11-01	10.27000000000000
2004-12-01	9.99000000000000
2005-01-01	10.19000000000000
2005-02-01	10.97000000000000
2005-03-01	11.47000000000000
2005-04-01	11.38000000000000
2005-05-01	11.33000000000000
2005-06-01	10.99000000000000
2005-07-01	10.92000000000000
2005-08-01	10.91000000000000
2005-09-01	10.67000000000000
2005-10-01	10.10000000000000
2005-11-01	9.15000000000000
2005-12-01	8.90000000000000
2006-01-01	9.30000000000000
2006-02-01	10.57000000000000
2006-03-01	11.21000000000000
2006-04-01	11.14000000000000
2006-05-01	10.96000000000000
2006-06-01	10.35000000000000
2006-07-01	10.08000000000000
2006-08-01	9.48000000000000
2006-09-01	8.78000000000000
2006-10-01	7.69000000000000
2006-11-01	6.96000000000000
2006-12-01	7.10000000000000
2007-01-01	7.64000000000000
2007-02-01	8.53000000000000
2007-03-01	8.85000000000000
2007-04-01	8.41000000000000
2007-05-01	8.00000000000000
2007-06-01	7.90000000000000
2007-07-01	8.79000000000000
2007-08-01	9.05000000000000
2007-09-01	9.17000000000000
2007-10-01	8.83000000000000
2007-11-01	8.84000000000000
2007-12-01	8.76000000000000
2008-01-01	9.20000000000000
2008-02-01	9.59000000000000
2008-03-01	9.84000000000000
2008-04-01	9.84000000000000
2008-05-01	10.24000000000000
2008-06-01	10.13000000000000
2008-07-01	9.99000000000000
2008-08-01	9.53000000000000
2008-09-01	9.18000000000000
2008-10-01	9.00000000000000
2008-11-01	8.68000000000000
2008-12-01	9.22000000000000
2009-01-01	9.83000000000000
2009-02-01	10.90000000000000
2009-03-01	11.30000000000000
2009-04-01	11.30000000000000
2009-05-01	11.40000000000000
2009-06-01	11.50000000000000
2009-07-01	11.70000000000000
2009-08-01	11.10000000000000
2009-09-01	10.30000000000000
2009-10-01	9.70000000000000
2009-11-01	9.40000000000000
2009-12-01	9.90000000000000
2010-01-01	9.80000000000000
2010-02-01	10.80000000000000
2010-03-01	10.60000000000000
2010-04-01	10.70000000000000
2010-05-01	10.10000000000000
2010-06-01	9.60000000000000
2010-07-01	9.50000000000000
2010-08-01	9.10000000000000
2010-09-01	8.80000000000000
2010-10-01	8.30000000000000
2010-11-01	8.60000000000000
2010-12-01	8.90000000000000
2011-01-01	8.90000000000000
2011-02-01	8.90000000000000
2011-03-01	8.70000000000000
2011-04-01	9.00000000000000
2011-05-01	8.80000000000000
2011-06-01	8.90000000000000
2011-07-01	8.60000000000000
2011-08-01	8.80000000000000
2011-09-01	8.70000000000000
2011-10-01	8.80000000000000
2011-11-01	8.20000000000000
2011-12-01	8.00000000000000
2012-01-01	7.80000000000000
2012-02-01	8.60000000000000
2012-03-01	8.40897469238895
2012-04-01	8.52482714445840
2012-05-01	7.71111484596326
2012-06-01	7.83148359129245
2012-07-01	7.69955152806598
2012-08-01	8.01922163073162
2012-09-01	7.90392461034604
2012-10-01	7.52353362553345
2012-11-01	7.26070512215051
2012-12-01	7.28615333222420
2013-01-01	7.45341000740196
2013-02-01	7.48260067515422
2013-03-01	7.77225647195420
2013-04-01	7.60251076407486
2013-05-01	7.09097448788094
2013-06-01	6.29995311932383
2013-07-01	6.45830407177593
2013-08-01	6.44872177745593
2013-09-01	6.79552388799892
2013-10-01	6.49272174116613
2013-11-01	6.50823464326535
2013-12-01	7.05505111907434
2014-01-01	6.91035270626526
2014-02-01	7.11805572062487
2014-03-01	6.45954296078306
2014-04-01	6.76382158066816
2014-05-01	6.77925543433240
2014-06-01	6.66726790157377
2014-07-01	6.99670919557712
2014-08-01	7.08306167286785
2014-09-01	6.89073054082473
2014-10-01	6.52627945018711
2014-11-01	6.59136841484361
2014-12-01	6.97311082199405
2015-01-01	6.88762395909302
2015-02-01	7.25238375657071
2015-03-01	7.22001551140796
2015-04-01	7.77721437324003
2015-05-01	7.37600115730553
2015-06-01	7.26773815556022
2015-07-01	6.90242216899894
2015-08-01	6.92995554061358
2015-09-01	6.53272792166255
2015-10-01	6.14990222357360
2015-11-01	5.79991131981918
2015-12-01	6.42249216744282
2016-01-01	6.77197204099035
2016-02-01	7.21766699893789
2016-03-01	7.07456124396099
2016-04-01	7.34068163633529
2016-05-01	7.27014373047231
2016-06-01	7.53468474098343
2016-07-01	7.31523829832214
2016-08-01	7.20258785093690
2016-09-01	6.96634108458390
2016-10-01	6.70690027107061
2016-11-01	6.38653887640588
2016-12-01	6.50692824254268
2017-01-01	6.75900544078754
2017-02-01	7.53937226213178
2017-03-01	7.44974692822226
2017-04-01	7.97582157848630
2017-05-01	7.56529776641584
2017-06-01	7.35519927909821
2017-07-01	6.81552948078477
2017-08-01	6.89841682080593
2017-09-01	7.29830008147982
2017-10-01	6.86670906839935
2017-11-01	6.84477210562895
2017-12-01	6.94278338855867
2018-01-01	7.35764396489879
2018-02-01	7.91066081497183
2018-03-01	7.72307106034700
2018-04-01	8.06106993203067
2018-05-01	7.94142341087889
2018-06-01	8.11473619655114
2018-07-01	7.85008276997125
2018-08-01	7.42818531098903