Month	Percent
1998-06-01	7.68
1998-07-01	8.43
1998-08-01	6.85
1998-09-01	7.67
1998-10-01	8.30
1998-11-01	8.18
1998-12-01	9.60
1999-01-01	6.27
1999-02-01	15.85
1999-03-01	9.07
1999-04-01	9.11
1999-05-01	7.72
1999-06-01	9.31
1999-07-01	6.61
1999-08-01	7.48
1999-09-01	9.03
1999-10-01	9.30
1999-11-01	9.98
1999-12-01	11.10
2000-01-01	11.24
2000-02-01	20.88
2000-03-01	10.93
2000-04-01	11.52
2000-05-01	11.51
2000-06-01	11.88
2000-07-01	11.72
2000-08-01	10.45
2000-09-01	11.04
2000-10-01	10.99
2000-11-01	12.81
2000-12-01	13.46
2001-01-01	12.45
2001-02-01	37.76
2001-03-01	9.84
2001-04-01	12.78
2001-05-01	12.44
2001-06-01	13.30
2001-07-01	12.51
2001-08-01	12.13
2001-09-01	12.48
2001-10-01	12.80
2001-11-01	12.51
2001-12-01	13.06
2002-01-01	13.17
2002-02-01	36.64
2002-03-01	10.12
2002-04-01	11.28
2002-05-01	9.14
2002-06-01	10.02
2002-07-01	8.55
2002-08-01	8.18
2002-09-01	7.22
2002-10-01	7.24
2002-11-01	6.25
2002-12-01	6.52
2003-01-01	6.23
2003-02-01	5.51
2003-03-01	4.79
2003-04-01	5.03
2003-05-01	5.26
2003-06-01	5.29
2003-07-01	5.33
2003-08-01	4.95
2003-09-01	4.75
2003-10-01	4.75
2003-11-01	4.86
2003-12-01	5.14
2004-01-01	3.13
2004-02-01	5.66
2004-03-01	5.16
2004-04-01	4.81
2004-05-01	6.16
2004-06-01	5.65
2004-07-01	4.00
2004-08-01	6.26
2004-09-01	6.85
2004-10-01	6.48
2004-11-01	7.05
2004-12-01	7.63
2005-01-01	8.00
2005-02-01	8.61
2005-03-01	8.70
2005-04-01	8.13
2005-05-01	8.70
2005-06-01	8.65
2005-07-01	9.15
2005-08-01	9.15
2005-09-01	9.90
2005-10-01	9.38
2005-11-01	9.83
2005-12-01	9.31
2006-01-01	10.35
2006-02-01	10.35
2006-03-01	10.40
2006-04-01	11.05
2006-05-01	11.70
2006-06-01	11.80
2006-07-01	12.45
2006-08-01	12.90
2006-09-01	13.35
2006-10-01	14.36
2006-11-01	14.01
2006-12-01	16.15
2007-01-01	14.70
2007-02-01	15.50
2007-03-01	13.55
2007-04-01	13.00
2007-05-01	13.40
2007-06-01	13.60
2007-07-01	14.40
2007-08-01	14.75
2007-09-01	13.01
2007-10-01	13.55
2007-11-01	14.03
2007-12-01	14.04
2008-01-01	14.03
2008-02-01	14.01
2008-03-01	15.26
2008-04-01	15.75
2008-05-01	15.75
2008-06-01	15.75
2008-07-01	15.75
2008-08-01	15.75
2008-09-01	15.75
2008-10-01	18.25
2008-11-01	18.25
2008-12-01	18.25
2009-01-01	18.25
2009-02-01	15.88
2009-03-01	14.25
2009-04-01	12.50
2009-05-01	9.50
2009-06-01	9.33
2009-07-01	9.15
2009-08-01	8.50
2009-09-01	8.45
2009-10-01	9.75
2009-11-01	9.25
2009-12-01	9.00
2010-01-01	8.50
2010-02-01	8.75
2010-03-01	8.00
2010-04-01	8.00
2010-05-01	7.50
2010-06-01	7.05
2010-07-01	7.10
2010-08-01	6.00
2010-09-01	5.75
2010-10-01	6.25
2010-11-01	5.50
2010-12-01	4.60
2011-01-01	4.25
2011-02-01	4.00
2011-03-01	3.75
2011-04-01	3.75
2011-05-01	3.80
2011-06-01	3.75
2011-07-01	3.75
2011-08-01	4.00
2011-09-01	3.75
2011-10-01	3.95
2011-11-01	4.25
2011-12-01	4.30
2012-01-01	4.10
2012-02-01	4.15
2012-03-01	4.00
2012-04-01	4.70
2012-05-01	4.75
2012-06-01	5.35
2012-07-01	5.00
2012-08-01	5.00
2012-09-01	5.00
2012-10-01	5.00
2012-11-01	5.15
2012-12-01	5.35
2013-01-01	5.40
2013-02-01	5.60
2013-03-01	5.55
2013-04-01	5.55
2013-05-01	5.30
2013-06-01	5.25
2013-07-01	5.25
2013-08-01	5.25
2013-09-01	5.25
2013-10-01	5.25
2013-11-01	5.35
2013-12-01	5.25
2014-01-01	5.25
2014-02-01	5.25
2014-03-01	5.25
2014-04-01	5.25
2014-05-01	5.25
2014-06-01	5.25
2014-07-01	5.25
2014-08-01	5.25
2014-09-01	5.20
2014-10-01	5.25
2014-11-01	5.05
2014-12-01	4.50
2015-01-01	4.50
2015-02-01	4.45
2015-03-01	4.50
2015-04-01	4.50
2015-05-01	4.55
2015-06-01	4.95
2015-07-01	4.95
2015-08-01	5.40
2015-09-01	5.40
2015-10-01	5.40
2015-11-01	5.75
2015-12-01	5.65
2016-01-01	5.65
2016-02-01	5.65
2016-03-01	5.65
2016-04-01	5.65
2016-05-01	5.70
2016-06-01	5.70
2016-07-01	5.70
2016-08-01	5.60
2016-09-01	5.15
2016-10-01	5.15
2016-11-01	5.15
2016-12-01	4.85
2017-01-01	4.90
2017-02-01	4.88
2017-03-01	4.85
2017-04-01	4.85
2017-05-01	4.60
2017-06-01	4.35
2017-07-01	4.35
2017-08-01	4.35
2017-09-01	4.35
2017-10-01	4.10
2017-11-01	4.10
2017-12-01	4.10
2018-01-01	4.10
2018-02-01	4.10
2018-03-01	4.13
2018-04-01	4.08
2018-05-01	4.05
2018-06-01	4.05
2018-07-01	4.03
2018-08-01	4.03
2018-09-01	4.03