Month	Percent
1991-01-01	34.20000000
1991-02-01	34.50000000
1991-03-01	34.70000000
1991-04-01	34.90000000
1991-05-01	34.90000000
1991-06-01	34.70000000
1991-07-01	35.20000000
1991-08-01	35.30000000
1991-09-01	34.90000000
1991-10-01	34.10000000
1991-11-01	34.00000000
1991-12-01	32.40000000
1992-01-01	31.60000000
1992-02-01	31.40000000
1992-03-01	28.90000000
1992-04-01	27.40000000
1992-05-01	27.20000000
1992-06-01	25.30000000
1992-07-01	19.80000000
1992-08-01	17.10000000
1992-09-01	17.90000000
1992-10-01	17.00000000
1992-11-01	14.40000000
1992-12-01	14.70000000
1993-01-01	14.60000000
1993-02-01	14.60000000
1993-03-01	13.70000000
1993-04-01	10.50000000
1993-05-01	12.20000000
1993-06-01	12.60000000
1993-07-01	16.70000000
1993-08-01	16.90000000
1993-09-01	21.90000000
1993-10-01	24.20000000
1993-11-01	24.40000000
1993-12-01	24.30000000
1994-01-01	23.40000000
1994-02-01	23.40000000
1994-03-01	23.60000000
1994-04-01	24.20000000
1994-05-01	24.30000000
1994-06-01	24.90000000
1994-07-01	27.10000000
1994-08-01	31.00000000
1994-09-01	30.40000000
1994-10-01	29.70000000
1994-11-01	29.60000000
1994-12-01	31.60000000
1995-01-01	31.90000000
1995-02-01	32.20000000
1995-03-01	33.00000000
1995-04-01	33.40000000
1995-05-01	33.90000000
1995-06-01	32.80000000
1995-07-01	32.60000000
1995-08-01	32.70000000
1995-09-01	31.80000000
1995-10-01	30.30000000
1995-11-01	29.80000000
1995-12-01	30.10000000
1996-01-01	29.10000000
1996-02-01	25.00000000
1996-03-01	25.00000000
1996-04-01	24.10000000
1996-05-01	24.10000000
1996-06-01	24.00000000
1996-07-01	23.90000000
1996-08-01	23.40000000
1996-09-01	22.50000000
1996-10-01	22.60000000
1996-11-01	22.10000000
1996-12-01	21.70000000
1997-01-01	21.80000000
1997-02-01	20.90000000
1997-03-01	20.70000000
1997-04-01	20.80000000
1997-05-01	20.60000000
1997-06-01	20.50000000
1997-07-01	19.70000000
1997-08-01	19.50000000
1997-09-01	19.40000000
1997-10-01	19.30000000
1997-11-01	19.20000000
1997-12-01	19.20000000
1998-01-01	19.30000000
1998-02-01	19.20000000
1998-03-01	19.00000000
1998-04-01	19.00000000
1998-05-01	18.40000000
1998-06-01	17.40000000
1998-07-01	17.50000000
1998-08-01	16.20000000
1998-09-01	16.60000000
1998-10-01	18.70000000
1998-11-01	17.40000000
1998-12-01	17.20000000
1999-01-01	15.80000000
1999-02-01	15.30000000
1999-03-01	15.30000000
1999-04-01	15.40000000
1999-05-01	14.90000000
1999-06-01	14.70000000
1999-07-01	14.60000000
1999-08-01	14.40000000
1999-09-01	14.00000000
1999-10-01	14.00000000
1999-11-01	14.00000000
1999-12-01	13.41000000
2000-01-01	12.88000000
2000-02-01	11.78000000
2000-03-01	10.97000000
2000-04-01	11.07000000
2000-05-01	10.96000000
2000-06-01	11.07000000
2000-07-01	10.78000000
2000-08-01	10.78000000
2000-09-01	10.92000000
2000-10-01	11.48000000
2000-11-01	12.05000000
2000-12-01	11.92000000
2001-01-01	11.45000000
2001-02-01	10.93000000
2001-03-01	11.11000000
2001-04-01	11.25000000
2001-05-01	11.19000000
2001-06-01	10.85000000
2001-07-01	11.00000000
2001-08-01	11.00000000
2001-09-01	10.82000000
2001-10-01	10.83000000
2001-11-01	10.17000000
2001-12-01	9.80000000
2002-01-01	8.93000000
2002-02-01	8.59000000
2002-03-01	8.58000000
2002-04-01	8.40000000
2002-05-01	8.85000000
2002-06-01	9.42000000
2002-07-01	9.60000000
2002-08-01	10.03000000
2002-09-01	9.88000000
2002-10-01	9.85000000
2002-11-01	9.60000000
2002-12-01	8.77000000
2003-01-01	6.27000000
2003-02-01	5.49000000
2003-03-01	6.87000000
2003-04-01	6.71000000
2003-05-01	6.57000000
2003-06-01	7.66000000
2003-07-01	9.90000000
2003-08-01	9.55000000
2003-09-01	9.53000000
2003-10-01	9.54000000
2003-11-01	10.59000000
2003-12-01	13.15000000
2004-01-01	12.57000000
2004-02-01	12.58000000
2004-03-01	12.25000000
2004-06-01	11.10000000
2004-11-01	11.09000000
2005-02-01	8.45000000
2005-04-01	7.43000000
2005-05-01	7.52000000
2005-07-01	6.50000000
2005-08-01	6.35000000
2005-09-01	5.65000000
2005-10-01	6.15000000
2005-11-01	6.20000000
2005-12-01	6.21000000
2006-01-01	6.02000000
2006-04-01	6.25923100
2006-07-01	6.89820700
2006-08-01	7.10793700
2006-09-01	7.87755100
2006-10-01	8.20000000
2006-12-01	8.20000000
2007-01-01	8.15000000
2007-03-01	8.10000000
2007-04-01	8.20000000
2007-06-01	8.01666700
2007-07-01	7.86863600
2007-08-01	7.83000000
2007-09-01	7.71978000
2007-10-01	7.60103400
2007-11-01	7.50746300
2007-12-01	7.63333300
2008-01-01	7.78333300
2008-03-01	8.20877100
2008-04-01	8.53777800
2008-05-01	8.40000000
2008-06-01	8.87000000
2008-07-01	8.99190300
2008-08-01	8.32608700
2008-09-01	8.61785700
2008-10-01	8.94589200
2008-11-01	11.34724900
2008-12-01	11.18261200
2009-01-01	9.80000000
2009-04-01	9.55840700
2009-05-01	11.30000000
2009-06-01	10.56960600
2009-07-01	9.98683800
2009-08-01	9.02035300
2009-09-01	8.77951300
2009-10-01	7.33668000
2009-11-01	7.56127900
2009-12-01	7.47439500
2010-01-01	6.78030000
2010-02-01	6.59050000
2010-03-01	6.64900000
2010-04-01	6.13550000
2010-05-01	6.23000000
2010-06-01	5.43320000
2010-07-01	6.17480000
2010-08-01	5.81630000
2010-09-01	6.40570000
2010-10-01	5.89650000
2010-11-01	5.86690000
2010-12-01	6.17430000
2011-01-01	6.13200000
2011-02-01	6.93380000
2011-03-01	6.63553390
2011-04-01	6.07922943
2011-05-01	6.87587459
2011-06-01	6.27280000
2011-07-01	6.74375000
2011-08-01	7.11670000
2011-09-01	6.19380000
2011-10-01	6.17860000
2011-11-01	7.25000000
2011-12-01	6.50000000
2012-01-01	8.54340000
2012-02-01	8.83460000
2012-04-01	8.19000000
2012-05-01	8.22370000
2012-07-01	8.00000000
2012-08-01	7.77270000
2012-10-01	6.84190000
2013-01-01	5.79570000
2013-04-01	4.56740000
2013-05-01	4.71130000
2013-06-01	4.48000000
2013-07-01	4.35580000
2013-08-01	3.92350000
2013-10-01	3.60060000
2013-11-01	3.33350000
2013-12-01	2.99680000
2014-01-01	2.99240000
2014-02-01	2.98930000
2014-03-01	3.24500000
2014-04-01	2.93530000
2014-05-01	2.54970000
2014-06-01	2.86000000
2014-07-01	2.29430000
2014-08-01	2.06100000
2014-09-01	1.98320000
2014-10-01	1.90840000
2014-11-01	2.04000000
2014-12-01	2.06410000
2015-01-01	1.97880000
2015-02-01	1.85060000
2015-03-01	1.82240000
2015-04-01	1.64400000
2015-05-01	1.42010000
2015-06-01	1.57500000
2015-07-01	1.25980000
2015-08-01	1.14420000
2015-09-01	1.28560000
2015-10-01	1.31850000
2015-11-01	1.24890000
2015-12-01	1.34760000
2016-01-01	1.18550000
2016-02-01	1.33770000
2016-03-01	1.18710000
2016-04-01	1.18460000
2016-05-01	0.97690000
2016-06-01	0.92700000
2016-07-01	0.88900000
2016-08-01	0.75290000
2016-09-01	0.79760000
2016-10-01	0.86000000
2016-11-01	0.67300000
2016-12-01	0.65650000
2017-01-01	0.22650000
2017-02-01	0.30040000
2017-03-01	0.34180000
2017-04-01	0.24760000
2017-05-01	0.21680000
2017-06-01	0.24980000
2017-07-01	0.53050000
2017-08-01	0.21330000
2017-09-01	0.13540000
2017-10-01	0.04560000
2017-11-01	0.05480000
2017-12-01	0.06440000
2018-01-01	0.03910000
2018-02-01	0.02650000
2018-03-01	0.04370000
2018-04-01	0.07300000
2018-05-01	0.08380000
2018-06-01	0.19540000
2018-07-01	0.25260000
2018-08-01	0.13270000
2018-09-01	0.16240000