Month	Percent
1987-01-01	11.093330
1987-02-01	11.362000
1987-03-01	11.850000
1987-04-01	11.531570
1987-05-01	11.113150
1987-06-01	10.700000
1987-07-01	11.042170
1987-08-01	10.896660
1987-09-01	11.472270
1987-10-01	11.837270
1987-11-01	11.395230
1987-12-01	11.118570
1988-01-01	10.601000
1988-02-01	9.940000
1988-03-01	10.063630
1988-04-01	10.485550
1988-05-01	10.412000
1988-06-01	9.780910
1988-07-01	9.590000
1988-08-01	9.788260
1988-09-01	9.794545
1988-10-01	9.650000
1988-11-01	9.440454
1988-12-01	9.058095
1989-01-01	9.025000
1989-02-01	9.443000
1989-03-01	9.641000
1989-04-01	9.675263
1989-05-01	9.806190
1989-06-01	9.873810
1989-07-01	9.343333
1989-08-01	9.315652
1989-09-01	9.734762
1989-10-01	10.180450
1989-11-01	10.287270
1989-12-01	10.150520
1990-01-01	10.502270
1990-02-01	11.306500
1990-03-01	11.237270
1990-04-01	10.577220
1990-05-01	10.439040
1990-06-01	10.361050
1990-07-01	10.025900
1990-08-01	10.465210
1990-09-01	10.828500
1990-10-01	10.770430
1990-11-01	10.673180
1990-12-01	10.358330
1991-01-01	10.279540
1991-02-01	9.419500
1991-03-01	9.323158
1991-04-01	9.214000
1991-05-01	9.111905
1991-06-01	9.204737
1991-07-01	9.340870
1991-08-01	9.335000
1991-09-01	9.138095
1991-10-01	8.951739
1991-11-01	8.933333
1991-12-01	8.897895
1992-01-01	8.520454
1992-02-01	8.553500
1992-03-01	8.725909
1992-04-01	8.826316
1992-05-01	8.777369
1992-06-01	9.010000
1992-07-01	9.173913
1992-08-01	9.611905
1992-09-01	9.571818
1992-10-01	9.283636
1992-11-01	8.813809
1992-12-01	8.980952
1993-01-01	8.652500
1993-02-01	8.633500
1993-03-01	8.174783
1993-04-01	7.781579
1993-05-01	7.560555
1993-06-01	7.178182
1993-07-01	7.046364
1993-08-01	6.734091
1993-09-01	6.770000
1993-10-01	6.473333
1993-11-01	6.404545
1993-12-01	6.224091
1994-01-01	6.017619
1994-02-01	6.271000
1994-03-01	6.693182
1994-04-01	7.027222
1994-05-01	7.412500
1994-06-01	8.165455
1994-07-01	8.150000
1994-08-01	8.571304
1994-09-01	9.087273
1994-10-01	8.916190
1994-11-01	8.827272
1994-12-01	8.766191
1995-01-01	9.064546
1995-02-01	8.857500
1995-03-01	8.956957
1995-04-01	8.746470
1995-05-01	8.318095
1995-06-01	8.266666
1995-07-01	8.338096
1995-08-01	8.084783
1995-09-01	7.840000
1995-10-01	7.880000
1995-11-01	7.565909
1995-12-01	7.322631
1996-01-01	7.040909
1996-02-01	7.408095
1996-03-01	7.597619
1996-04-01	7.341579
1996-05-01	7.392000
1996-06-01	7.498947
1996-07-01	7.354783
1996-08-01	7.259091
1996-09-01	7.180000
1996-10-01	6.826522
1996-11-01	6.786667
1996-12-01	6.628947
1997-01-01	6.486400
1997-02-01	6.246500
1997-03-01	6.467800
1997-04-01	6.616200
1997-05-01	6.543000
1997-06-01	6.396000
1997-07-01	6.106500
1997-08-01	6.237100
1997-09-01	6.161800
1997-10-01	6.067800
1997-11-01	6.062500
1997-12-01	5.742500
1998-01-01	5.489500
1998-02-01	5.432000
1998-03-01	5.272300
1998-04-01	5.218400
1998-05-01	5.334700
1998-06-01	5.098000
1998-07-01	5.023500
1998-08-01	4.918100
1998-09-01	4.843600
1998-10-01	4.769100
1998-11-01	4.706700
1998-12-01	4.373300
1999-01-01	4.104500
1999-02-01	4.218500
1999-03-01	4.431700
1999-04-01	4.217200
1999-05-01	4.460500
1999-06-01	4.811800
1999-07-01	5.115000
1999-08-01	5.384100
1999-09-01	5.555000
1999-10-01	5.759500
1999-11-01	5.448600
1999-12-01	5.500000
2000-01-01	5.868600
2000-02-01	5.846700
2000-03-01	5.649600
2000-04-01	5.574100
2000-05-01	5.789500
2000-06-01	5.695800
2000-07-01	5.789500
2000-08-01	5.673900
2000-09-01	5.674800
2000-10-01	5.599100
2000-11-01	5.520500
2000-12-01	5.239500
2001-01-01	5.145000
2001-02-01	5.115000
2001-03-01	5.008600
2001-04-01	5.135600
2001-05-01	5.347600
2001-06-01	5.328400
2001-07-01	5.315500
2001-08-01	5.119600
2001-09-01	5.112500
2001-10-01	4.858300
2001-11-01	4.665500
2001-12-01	4.972200
2002-01-01	5.083200
2002-02-01	5.144500
2002-03-01	5.398400
2002-04-01	5.402500
2002-05-01	5.417100
2002-06-01	5.271100
2002-07-01	5.130000
2002-08-01	4.875000
2002-09-01	4.740500
2002-10-01	4.810000
2002-11-01	4.791900
2002-12-01	4.607400
2003-01-01	4.426400
2003-02-01	4.210000
2003-03-01	4.263800
2003-04-01	4.408900
2003-05-01	4.087500
2003-06-01	3.850500
2003-07-01	4.165700
2003-08-01	4.351400
2003-09-01	4.400500
2003-10-01	4.438300
2003-11-01	4.572000
2003-12-01	4.517900
2004-01-01	4.350500
2004-02-01	4.297500
2004-03-01	4.096500
2004-04-01	4.301100
2004-05-01	4.463300
2004-06-01	4.532300
2004-07-01	4.620500
2004-08-01	4.450900
2004-09-01	4.375500
2004-10-01	4.229000
2004-11-01	4.093200
2004-12-01	3.846200
2005-01-01	3.734800
2005-02-01	3.640000
2005-03-01	3.814500
2005-04-01	3.582000
2005-05-01	3.386000
2005-06-01	3.158200
2005-07-01	3.204800
2005-08-01	3.240000
2005-09-01	3.050900
2005-10-01	3.217600
2005-11-01	3.461800
2005-12-01	3.352900
2006-01-01	3.311400
2006-02-01	3.484000
2006-03-01	3.704300
2006-04-01	3.974700
2006-05-01	4.023900
2006-06-01	4.028800
2006-07-01	4.063500
2006-08-01	3.933900
2006-09-01	3.791900
2006-10-01	3.878100
2006-11-01	3.775000
2006-12-01	3.776600
2007-01-01	3.995700
2007-02-01	4.054400
2007-03-01	3.958400
2007-04-01	4.182100
2007-05-01	4.337500
2007-06-01	4.644800
2007-07-01	4.582200
2007-08-01	4.391300
2007-09-01	4.357400
2007-10-01	4.394100
2007-11-01	4.207000
2007-12-01	4.334400
2008-01-01	4.148600
2008-02-01	4.081900
2008-03-01	4.037200
2008-04-01	4.285000
2008-05-01	4.415400
2008-06-01	4.824200
2008-07-01	4.777100
2008-08-01	4.485500
2008-09-01	4.372800
2008-10-01	4.392900
2008-11-01	4.056700
2008-12-01	3.499800
2009-01-01	3.442000
2009-02-01	3.550200
2009-03-01	3.440000
2009-04-01	3.499500
2009-05-01	3.615600
2009-06-01	3.755700
2009-07-01	3.736200
2009-08-01	3.602400
2009-09-01	3.646100
2009-10-01	3.595600
2009-11-01	3.622100
2009-12-01	3.529500
2010-01-01	3.568400
2010-02-01	3.496300
2010-03-01	3.399700
2010-04-01	3.342800
2010-05-01	2.928200
2010-06-01	2.701300
2010-07-01	2.715800
2010-08-01	2.445700
2010-09-01	2.395300
2010-10-01	2.455600
2010-11-01	2.651600
2010-12-01	3.012000
2011-01-01	3.051900
2011-02-01	3.230000
2011-03-01	3.289000
2011-04-01	3.415600
2011-05-01	3.131400
2011-06-01	2.958400
2011-07-01	3.015700
2011-08-01	2.494300
2011-09-01	2.070900
2011-10-01	2.232400
2011-11-01	2.005500
2011-12-01	1.857100
2012-01-01	1.734500
2012-02-01	1.843800
2012-03-01	1.886800
2012-04-01	1.714100
2012-05-01	1.368900
2012-06-01	1.255000
2012-07-01	1.100500
2012-08-01	1.148700
2012-09-01	1.309500
2012-10-01	1.292200
2012-11-01	1.112700
2012-12-01	1.070000
2013-01-01	1.610000
2013-02-01	1.730000
2013-03-01	1.590000
2013-04-01	1.420000
2013-05-01	1.450000
2013-06-01	1.720000
2013-07-01	1.770000
2013-08-01	1.940000
2013-09-01	2.100000
2013-10-01	1.930000
2013-11-01	1.800000
2013-12-01	1.890000
2014-01-01	1.860000
2014-02-01	1.670000
2014-03-01	1.610000
2014-04-01	1.570000
2014-05-01	1.470000
2014-06-01	1.380000
2014-07-01	1.240000
2014-08-01	1.070000
2014-09-01	0.960000
2014-10-01	1.130000
2014-11-01	1.030000
2014-12-01	0.930000
2015-01-01	0.630000
2015-02-01	0.200000
2015-03-01	0.300000
2015-04-01	0.250000
2015-05-01	0.730000
2015-06-01	1.000000
2015-07-01	0.940000
2015-08-01	0.840000
2015-09-01	0.930000
2015-10-01	0.830000
2015-11-01	0.810000
2015-12-01	0.830000
2016-01-01	0.790000
2016-02-01	0.550000
2016-03-01	0.510000
2016-04-01	0.400000
2016-05-01	0.410000
2016-06-01	0.230000
2016-07-01	0.070000
2016-08-01	0.040000
2016-09-01	0.010000
2016-10-01	0.130000
2016-11-01	0.320000
2016-12-01	0.390000
2017-01-01	0.370000
2017-02-01	0.330000
2017-03-01	0.190000
2017-04-01	0.550000
2017-05-01	0.640000
2017-06-01	0.530000
2017-07-01	0.670000
2017-08-01	0.550000
2017-09-01	0.510000
2017-10-01	0.530000
2017-11-01	0.440000
2017-12-01	0.410000
2018-01-01	0.570000
2018-02-01	0.770000
2018-03-01	0.640000
2018-04-01	0.550000
2018-05-01	0.520000
2018-06-01	0.410000
2018-07-01	0.320000
2018-08-01	0.330000
2018-09-01	0.370000