Month	Percent
1992-01-01	30.10000000
1992-02-01	27.20000000
1992-03-01	24.80000000
1992-04-01	23.30000000
1992-05-01	23.20000000
1992-06-01	20.00000000
1992-07-01	15.40000000
1992-08-01	15.20000000
1992-09-01	15.20000000
1992-10-01	14.70000000
1992-11-01	14.40000000
1992-12-01	14.60000000
1993-01-01	12.00000000
1993-02-01	6.30000000
1993-03-01	7.90000000
1993-04-01	11.30000000
1993-05-01	15.90000000
1993-06-01	15.90000000
1993-07-01	16.60000000
1993-08-01	17.30000000
1993-09-01	18.00000000
1993-10-01	20.70000000
1993-11-01	20.90000000
1993-12-01	21.80000000
1994-01-01	18.60000000
1994-02-01	21.20000000
1994-03-01	22.60000000
1994-04-01	23.60000000
1994-05-01	23.90000000
1994-06-01	24.70000000
1994-07-01	28.80000000
1994-08-01	25.50000000
1994-09-01	29.50000000
1994-10-01	30.40000000
1994-11-01	27.60000000
1994-12-01	30.80000000
1995-01-01	31.40000000
1995-02-01	32.70000000
1995-03-01	35.10000000
1995-04-01	34.00000000
1995-05-01	34.00000000
1995-06-01	33.60000000
1995-07-01	31.80000000
1995-08-01	29.20000000
1995-09-01	28.00000000
1995-10-01	29.90000000
1995-11-01	27.60000000
1995-12-01	28.80000000
1996-01-01	25.50000000
1996-02-01	25.50000000
1996-03-01	24.70000000
1996-04-01	24.30000000
1996-05-01	24.10000000
1996-06-01	23.90000000
1996-07-01	23.40000000
1996-08-01	22.80000000
1996-09-01	23.30000000
1996-10-01	22.80000000
1996-11-01	22.10000000
1996-12-01	23.30000000
1997-01-01	24.50000000
1997-02-01	21.60000000
1997-03-01	22.00000000
1997-04-01	21.00000000
1997-05-01	20.70000000
1997-06-01	20.40000000
1997-07-01	20.00000000
1997-08-01	19.90000000
1997-09-01	19.80000000
1997-10-01	19.40000000
1997-11-01	19.80000000
1997-12-01	19.20000000
1998-01-01	20.40000000
1998-02-01	19.10000000
1998-03-01	18.60000000
1998-04-01	18.30000000
1998-05-01	18.30000000
1998-06-01	17.50000000
1998-07-01	17.50000000
1998-08-01	16.00000000
1998-09-01	17.50000000
1998-10-01	17.30000000
1998-11-01	19.70000000
1998-12-01	15.80000000
1999-01-01	17.90000000
1999-02-01	14.80000000
1999-03-01	15.60000000
1999-04-01	15.30000000
1999-05-01	14.60000000
1999-06-01	14.90000000
1999-07-01	14.50000000
1999-08-01	14.10000000
1999-09-01	14.10000000
1999-10-01	14.60000000
1999-11-01	13.90000000
1999-12-01	13.20000000
2000-01-01	12.51553300
2000-02-01	11.51517700
2000-03-01	11.33198300
2000-04-01	10.93786500
2000-05-01	10.48081700
2000-06-01	11.01223800
2000-07-01	10.72191000
2000-08-01	10.44959200
2000-09-01	10.90561700
2000-10-01	10.79659400
2000-11-01	10.99599900
2000-12-01	10.97676200
2001-01-01	10.56681900
2001-02-01	10.95208200
2001-03-01	11.70583100
2001-04-01	10.39894200
2001-05-01	11.26968500
2001-06-01	11.32845000
2001-07-01	10.77635400
2001-08-01	11.11096000
2001-09-01	11.10000000
2001-10-01	11.03000000
2001-11-01	10.26261300
2001-12-01	10.48796700
2002-01-01	9.06697600
2002-02-01	8.75861600
2002-03-01	8.33549900
2002-04-01	8.20000000
2002-05-01	8.18000000
2002-06-01	8.10000000
2002-07-01	8.88000000
2002-08-01	9.58000000
2002-09-01	9.20000000
2002-10-01	9.80000000
2002-11-01	9.40000000
2002-12-01	8.90000000
2003-01-01	7.63000000
2003-02-01	4.31000000
2003-03-01	6.19000000
2003-04-01	6.72000000
2003-05-01	6.63000000
2003-06-01	7.69000000
2003-07-01	9.45000000
2003-08-01	9.67000000
2003-09-01	9.45000000
2003-10-01	9.96000000
2003-11-01	9.36000000
2003-12-01	11.99000000
2004-01-01	12.26000000
2004-02-01	12.29000000
2004-03-01	12.64000000
2004-04-01	12.57000000
2004-05-01	11.53000000
2004-06-01	11.37000000
2004-07-01	11.69000000
2004-08-01	11.17000000
2004-09-01	11.16000000
2004-10-01	11.20000000
2004-11-01	10.26000000
2004-12-01	9.93000000
2005-01-01	9.31000000
2005-02-01	8.99000000
2005-03-01	8.00000000
2005-04-01	7.55000000
2005-05-01	6.84000000
2005-06-01	7.04000000
2005-07-01	7.09000000
2005-08-01	6.66000000
2005-09-01	6.20000000
2005-10-01	6.00000000
2005-11-01	5.69000000
2005-12-01	5.41000000
2006-01-01	5.88000000
2006-02-01	5.90000000
2006-03-01	5.41000000
2006-04-01	5.66048600
2006-05-01	5.60000000
2006-06-01	5.55875000
2006-07-01	6.12647800
2006-08-01	6.72992400
2006-09-01	7.01283200
2006-10-01	7.42866800
2006-11-01	7.82590300
2006-12-01	7.97880100
2007-01-01	7.85852500
2007-02-01	7.86548400
2007-03-01	7.99964000
2007-04-01	7.80278500
2007-05-01	7.78705100
2007-06-01	8.36742600
2007-07-01	7.37518200
2007-08-01	7.67088500
2007-09-01	7.41260300
2007-10-01	7.63007500
2007-11-01	6.91622300
2007-12-01	7.01203700
2008-01-01	7.51395800
2008-02-01	7.31667800
2008-03-01	6.98459900
2008-04-01	7.35067300
2008-05-01	7.81000000
2008-06-01	7.74934800
2008-07-01	7.86907000
2008-08-01	8.44446900
2008-09-01	8.50424200
2008-10-01	8.86330100
2008-11-01	11.28167600
2008-12-01	10.12223800
2009-01-01	9.39604000
2009-02-01	9.13611000
2009-03-01	9.17364200
2009-04-01	9.11590600
2009-05-01	9.13196200
2009-06-01	9.12627300
2009-07-01	8.98138500
2009-08-01	8.03637600
2009-09-01	7.60100000
2009-10-01	6.95820900
2009-11-01	6.42317600
2009-12-01	5.92145100
2010-01-01	6.00170000
2010-02-01	5.68600000
2010-03-01	4.91320000
2010-04-01	5.23170000
2010-05-01	4.97250000
2010-06-01	4.56970000
2010-07-01	4.38980000
2010-08-01	4.44680000
2010-09-01	4.47780000
2010-10-01	4.49880000
2010-11-01	4.62370000
2010-12-01	4.75630000
2011-01-01	5.00820000
2011-02-01	5.32560000
2011-03-01	5.19094226
2011-04-01	5.55791352
2011-05-01	5.19572590
2011-06-01	5.25270000
2011-07-01	5.31101566
2011-08-01	5.21600000
2011-09-01	5.34100000
2011-10-01	5.18790000
2011-11-01	5.33470000
2011-12-01	5.78050000
2012-01-01	6.10630000
2012-02-01	6.33200000
2012-03-01	6.20910000
2012-04-01	6.44500000
2012-05-01	6.24330000
2012-06-01	6.19010000
2012-07-01	6.37100000
2012-08-01	6.28920000
2012-09-01	6.06470000
2012-10-01	5.90700000
2012-11-01	5.77320000
2012-12-01	5.20490000
2013-01-01	5.71590000
2013-02-01	5.11640000
2013-03-01	4.97140000
2013-04-01	4.82220000
2013-05-01	4.24680000
2013-06-01	4.08000000
2013-07-01	3.58020000
2013-08-01	3.52250000
2013-09-01	3.10340000
2013-10-01	2.75660000
2013-11-01	2.90690000
2013-12-01	2.92190000
2014-01-01	2.19640000
2014-02-01	2.16140000
2014-03-01	2.05000000
2014-04-01	2.14440000
2014-05-01	1.92080000
2014-06-01	1.73550000
2014-07-01	1.83090000
2014-08-01	1.39570000
2014-09-01	1.20960000
2014-10-01	1.40460000
2014-11-01	1.59890000
2014-12-01	1.24190000
2015-01-01	1.57170000
2015-02-01	1.45150000
2015-03-01	1.29750000
2015-04-01	1.51520000
2015-05-01	1.56770000
2015-06-01	1.25810000
2015-07-01	1.12090000
2015-08-01	0.71130000
2015-09-01	1.62710000
2015-10-01	1.43030000
2015-11-01	1.11710000
2015-12-01	1.08650000
2016-01-01	0.90420000
2016-02-01	0.76640000
2016-03-01	1.24610000
2016-04-01	1.04940000
2016-05-01	0.85020000
2016-06-01	0.42960000
2016-07-01	0.51330000
2016-08-01	0.44330000
2016-09-01	0.88470000
2016-10-01	0.88000000
2016-11-01	0.33140000
2016-12-01	0.16670000
2017-01-01	0.04010000
2017-02-01	0.07790000
2017-03-01	0.05640000
2017-04-01	0.08210000
2017-05-01	0.10300000
2017-06-01	0.03850000
2017-07-01	0.03490000
2017-08-01	0.04870000
2017-09-01	0.00140000
2017-10-01	-0.03800000
2017-11-01	-0.03850000
2017-12-01	-0.01110000
2018-01-01	-0.07060000
2018-02-01	-0.06100000
2018-03-01	-0.07010000
2018-04-01	-0.05610000
2018-05-01	-0.01710000
2018-06-01	-0.01040000
2018-07-01	-0.00990000
2018-08-01	-0.02010000
2018-09-01	-0.00270000