Month	Percent
1991-01-01	34.200000
1991-02-01	34.500000
1991-03-01	34.700000
1991-04-01	34.900000
1991-05-01	34.900000
1991-06-01	34.700000
1991-07-01	35.200000
1991-08-01	35.300000
1991-09-01	34.900000
1991-10-01	34.100000
1991-11-01	34.000000
1991-12-01	32.400000
1992-01-01	31.600000
1992-02-01	31.400000
1992-03-01	28.900000
1992-04-01	27.400000
1992-05-01	27.200000
1992-06-01	25.300000
1992-07-01	19.800000
1992-08-01	17.100000
1992-09-01	17.900000
1992-10-01	17.000000
1992-11-01	14.400000
1992-12-01	14.700000
1993-01-01	14.600000
1993-02-01	14.600000
1993-03-01	13.700000
1993-04-01	10.500000
1993-05-01	12.200000
1993-06-01	12.600000
1993-07-01	16.700000
1993-08-01	16.900000
1993-09-01	21.900000
1993-10-01	24.200000
1993-11-01	24.400000
1993-12-01	24.300000
1994-01-01	23.400000
1994-02-01	23.400000
1994-03-01	23.600000
1994-04-01	24.200000
1994-05-01	24.300000
1994-06-01	24.900000
1994-07-01	27.100000
1994-08-01	31.000000
1994-09-01	30.400000
1994-10-01	29.700000
1994-11-01	29.600000
1994-12-01	31.600000
1995-01-01	31.900000
1995-02-01	32.200000
1995-03-01	33.000000
1995-04-01	33.400000
1995-05-01	33.900000
1995-06-01	32.800000
1995-07-01	32.600000
1995-08-01	32.700000
1995-09-01	31.800000
1995-10-01	30.300000
1995-11-01	29.800000
1995-12-01	30.100000
1996-01-01	29.100000
1996-02-01	25.000000
1996-03-01	25.000000
1996-04-01	24.100000
1996-05-01	24.100000
1996-06-01	24.000000
1996-07-01	23.900000
1996-08-01	23.400000
1996-09-01	22.500000
1996-10-01	22.600000
1996-11-01	22.100000
1996-12-01	21.700000
1997-01-01	21.800000
1997-02-01	20.900000
1997-03-01	20.700000
1997-04-01	20.800000
1997-05-01	20.600000
1997-06-01	20.500000
1997-07-01	19.700000
1997-08-01	19.500000
1997-09-01	19.400000
1997-10-01	19.300000
1997-11-01	19.200000
1997-12-01	19.200000
1998-01-01	19.300000
1998-02-01	19.200000
1998-03-01	19.000000
1998-04-01	19.000000
1998-05-01	18.400000
1998-06-01	17.400000
1998-07-01	17.500000
1998-08-01	16.200000
1998-09-01	16.600000
1998-10-01	18.700000
1998-11-01	17.400000
1998-12-01	17.200000
1999-01-01	15.800000
1999-02-01	15.300000
1999-03-01	15.300000
1999-04-01	15.400000
1999-05-01	14.900000
1999-06-01	14.700000
1999-07-01	14.600000
1999-08-01	14.400000
1999-09-01	14.000000
1999-10-01	14.000000
1999-11-01	14.000000
1999-12-01	13.410000
2000-01-01	12.200000
2000-02-01	10.700000
2000-03-01	10.500000
2000-04-01	10.800000
2000-05-01	10.800000
2000-06-01	10.800000
2000-07-01	10.600000
2000-08-01	10.600000
2000-09-01	10.700000
2000-10-01	11.100000
2000-11-01	11.800000
2000-12-01	11.800000
2001-01-01	11.500000
2001-02-01	11.100000
2001-03-01	11.000000
2001-04-01	11.100000
2001-05-01	11.100000
2001-06-01	10.840000
2001-07-01	10.740000
2001-08-01	10.760000
2001-09-01	10.780000
2001-10-01	10.620000
2001-11-01	10.220000
2001-12-01	9.830000
2002-01-01	9.260000
2002-02-01	8.490000
2002-03-01	8.370000
2002-04-01	8.410000
2002-05-01	8.490000
2002-06-01	8.900000
2002-07-01	9.210000
2002-08-01	9.500000
2002-09-01	9.570000
2002-10-01	9.430000
2002-11-01	9.150000
2002-12-01	8.190000
2003-01-01	7.590000
2003-02-01	5.350000
2003-03-01	6.290000
2003-04-01	6.400000
2003-05-01	6.380000
2003-06-01	7.020000
2003-07-01	9.440000
2003-08-01	9.570000
2003-09-01	9.430000
2003-10-01	9.440000
2003-11-01	9.930000
2003-12-01	11.780000
2004-01-01	12.330000
2004-02-01	12.660000
2004-03-01	12.330000
2004-04-01	11.620000
2004-05-01	11.400000
2004-06-01	11.450000
2004-07-01	11.460000
2004-08-01	11.220000
2004-09-01	11.000000
2004-10-01	10.720000
2004-11-01	10.100000
2004-12-01	9.330000
2005-01-01	9.000000
2005-02-01	8.710000
2005-03-01	7.410000
2005-04-01	7.420000
2005-05-01	7.410000
2005-06-01	7.100000
2005-07-01	6.600000
2005-08-01	6.160000
2005-09-01	6.100000
2005-10-01	5.980000
2005-11-01	6.130000
2005-12-01	6.020000
2006-01-01	5.940000
2006-02-01	5.940000
2006-03-01	6.160000
2006-04-01	6.180000
2006-05-01	6.160000
2006-06-01	6.470000
2006-07-01	6.810000
2006-08-01	7.280000
2006-09-01	7.760000
2006-10-01	8.160000
2006-11-01	8.110000
2006-12-01	7.980000
2007-01-01	7.930000
2007-02-01	8.030000
2007-03-01	7.870000
2007-04-01	7.630000
2007-05-01	7.610000
2007-06-01	7.600000
2007-07-01	7.390000
2007-08-01	7.450000
2007-09-01	7.440000
2007-10-01	7.300000
2007-11-01	7.300000
2007-12-01	7.410000
2008-01-01	7.440000
2008-02-01	7.650000
2008-03-01	8.440000
2008-04-01	8.480000
2008-05-01	8.460000
2008-06-01	8.830000
2008-07-01	8.700000
2008-08-01	8.590000
2008-09-01	8.660000
2008-10-01	9.440000
2008-11-01	12.453000
2008-12-01	9.710000
2009-01-01	9.170000
2009-02-01	9.600000
2009-03-01	10.550000
2009-04-01	9.770000
2009-05-01	9.500000
2009-06-01	9.400000
2009-07-01	9.220000
2009-08-01	8.020000
2009-09-01	7.360000
2009-10-01	6.800000
2009-11-01	6.460000
2009-12-01	5.960000
2010-01-01	5.828600
2010-02-01	5.642900
2010-03-01	5.438300
2010-04-01	5.030000
2010-05-01	4.945900
2010-06-01	5.212400
2010-07-01	5.329700
2010-08-01	5.370500
2010-09-01	5.460200
2010-10-01	5.270400
2010-11-01	5.252300
2010-12-01	5.651300
2011-01-01	5.695300
2011-02-01	5.966700
2011-03-01	5.964000
2011-04-01	5.937346
2011-05-01	5.925000
2011-06-01	5.880000
2011-07-01	5.777500
2011-08-01	5.752100
2011-09-01	5.731600
2011-10-01	6.009200
2011-11-01	6.456400
2011-12-01	7.112900
2012-01-01	7.755300
2012-02-01	7.306700
2012-03-01	7.225200
2012-04-01	7.259400
2012-05-01	7.179400
2012-06-01	7.164300
2012-07-01	7.049100
2012-08-01	6.859500
2012-09-01	6.727900
2012-10-01	6.343000
2012-11-01	6.095800
2012-12-01	5.819400
2013-01-01	5.489100
2013-02-01	5.312700
2013-03-01	4.923000
2013-04-01	4.560000
2013-05-01	4.247400
2013-06-01	4.250000
2013-07-01	4.147200
2013-08-01	3.965400
2013-09-01	3.785100
2013-10-01	3.438100
2013-11-01	3.122200
2013-12-01	2.920000
2014-01-01	2.878700
2014-02-01	3.039900
2014-03-01	2.900700
2014-04-01	2.701500
2014-05-01	2.410900
2014-06-01	2.352500
2014-07-01	2.083500
2014-08-01	1.557000
2014-09-01	1.401500
2014-10-01	1.429500
2014-11-01	1.739600
2014-12-01	1.592000
2015-01-01	1.798300
2015-02-01	1.675700
2015-03-01	1.630000
2015-04-01	1.568000
2015-05-01	1.471700
2015-06-01	1.219700
2015-07-01	0.975700
2015-08-01	0.890000
2015-09-01	0.541000
2015-10-01	0.487700
2015-11-01	0.850900
2015-12-01	0.839700
2016-01-01	1.069400
2016-02-01	1.058200
2016-03-01	1.180400
2016-04-01	1.074400
2016-05-01	0.977500
2016-06-01	0.891900
2016-07-01	0.750000
2016-08-01	0.450800
2016-09-01	0.431200
2016-10-01	0.439300
2016-11-01	0.325900
2016-12-01	0.157500
2017-01-01	0.133200
2017-02-01	0.088600
2017-03-01	0.036900
2017-04-01	0.036700
2017-05-01	0.030000
2017-06-01	0.039000
2017-07-01	0.022500
2017-08-01	0.011700
2017-09-01	-0.022500
2017-10-01	-0.054800
2017-11-01	0.007500
2017-12-01	-0.001900
2018-01-01	0.000200
2018-02-01	0.000000
2018-03-01	0.006900
2018-04-01	0.025800
2018-05-01	0.103000
2018-06-01	0.148000
2018-07-01	0.220800
2018-08-01	0.100600
2018-09-01	0.096100