Monthly Percent
1997-01-01 17.95
1997-02-01 17.43
1997-03-01 16.76
1997-04-01 16.26
1997-05-01 16.26
1997-06-01 16.21
1997-07-01 16.14
1997-08-01 15.95
1997-09-01 15.67
1997-10-01 15.46
1997-11-01 15.62
1997-12-01 15.67
1998-01-01 15.53
1998-02-01 15.36
1998-03-01 15.19
1998-04-01 15.32
1998-05-01 15.94
1998-06-01 16.00
1998-07-01 16.16
1998-08-01 16.20
1998-09-01 16.45
1998-10-01 17.64
1998-11-01 18.07
1998-12-01 18.24
1999-01-01 18.01
1999-02-01 18.43
1999-03-01 18.34
1999-04-01 18.36
1999-05-01 18.52
1999-06-01 18.35
1999-07-01 17.66
1999-08-01 17.43
1999-09-01 16.84
1999-10-01 16.74
1999-11-01 16.59
1999-12-01 16.53
2000-01-01 15.78
2000-02-01 15.51
2000-03-01 15.15
2000-04-01 15.15
2000-05-01 15.05
2000-06-01 15.54
2000-07-01 15.47
2000-08-01 15.87
2000-09-01 15.75
2000-10-01 15.15
2000-11-01 15.05
2000-12-01 14.85
2001-01-01 14.60
2001-02-01 14.18
2001-03-01 14.09
2001-04-01 14.01
2001-05-01 13.57
2001-06-01 13.50
2001-07-01 13.48
2001-08-01 13.16
2001-09-01 13.13
2001-10-01 13.06
2001-11-01 13.05
2001-12-01 13.88
2002-01-01 14.06
2002-02-01 14.48
2002-03-01 14.67
2002-04-01 14.74
2002-05-01 14.71
2002-06-01 14.70
2002-07-01 14.54
2002-08-01 14.54
2002-09-01 14.63
2002-10-01 14.48
2002-11-01 14.53
2002-12-01 14.51
2003-01-01 14.05
2003-02-01 14.08
2003-03-01 14.06
2003-04-01 13.91
2003-05-01 13.57
2003-06-01 13.31
2003-07-01 12.93
2003-08-01 12.73
2003-09-01 12.49
2003-10-01 12.21
2003-11-01 12.22
2003-12-01 12.26
2004-01-01 12.23
2004-02-01 12.06
2004-03-01 12.08
2004-04-01 12.08
2004-05-01 12.10
2004-06-01 12.22
2004-07-01 12.23
2004-08-01 12.21
2004-09-01 12.27
2004-10-01 12.30
2004-11-01 12.31
2004-12-01 12.32
2005-01-01 12.42
2005-02-01 12.54
2005-03-01 12.62
2005-04-01 12.56
2005-05-01 12.82
2005-06-01 12.80
2005-07-01 12.76
2005-08-01 12.67
2005-09-01 12.71
2005-10-01 12.70
2005-11-01 12.76
2005-12-01 12.91
2006-01-01 12.91
2006-02-01 12.92
2006-03-01 12.89
2006-04-01 12.90
2006-05-01 11.57
2006-06-01 11.59
2006-07-01 11.63
2006-08-01 11.64
2006-09-01 11.41
2006-10-01 11.05
2006-11-01 10.43
2006-12-01 10.21
2007-01-01 9.14
2007-02-01 7.70
2007-03-01 7.34
2007-04-01 6.91
2007-05-01 6.66
2007-06-01 6.64
2007-07-01 6.60
2007-08-01 6.66
2007-09-01 6.65
2007-10-01 6.48
2007-11-01 6.38
2007-12-01 6.40
2008-01-01 6.22
2008-02-01 3.67
2008-03-01 3.44
2008-04-01 3.09
2008-05-01 3.09
2008-06-01 3.44
2008-07-01 3.85
2008-08-01 5.12
2008-09-01 6.32
2008-10-01 6.96
2008-11-01 7.95
2008-12-01 7.99
2009-01-01 8.03
2009-02-01 8.48
2009-03-01 8.43
2009-04-01 8.47
2009-05-01 8.17
2009-06-01 8.15
2009-07-01 9.18
2009-08-01 9.09
2009-09-01 8.95
2009-10-01 8.55
2009-11-01 8.04
2009-12-01 6.66
2010-01-01 6.44
2010-02-01 6.39
2010-03-01 6.40
2010-04-01 6.34
2010-05-01 6.46
2010-06-01 6.26
2010-07-01 6.45
2010-08-01 6.00
2010-09-01 5.57
2010-10-01 5.61
2010-11-01 5.68
2010-12-01 5.67
2011-01-01 5.67
2011-02-01 5.67
2011-03-01 5.60
2011-04-01 5.53
2011-05-01 5.38
2011-06-01 5.16
2011-07-01 5.05
2011-08-01 5.04
2011-09-01 5.17
2011-10-01 5.14
2011-11-01 5.12
2011-12-01 5.17
2012-01-01 5.27
2012-02-01 5.71
2012-03-01 5.86
2012-04-01 5.93
2012-05-01 5.93
2012-06-01 5.93
2012-07-01 6.11
2012-08-01 6.28
2012-09-01 6.28
2012-10-01 6.19
2012-11-01 5.94
2012-12-01 5.94
2013-01-01 5.73
2013-02-01 5.19
2013-03-01 5.13
2013-04-01 5.00
2013-05-01 4.79
2013-06-01 4.74
2013-07-01 4.50
2013-08-01 4.32
2013-09-01 4.33
2013-10-01 4.29
2013-11-01 4.28
2013-12-01 4.13
2014-01-01 4.03
2014-02-01 3.94
2014-03-01 3.97
2014-04-01 3.98
2014-05-01 4.25
2014-06-01 4.30
2014-07-01 4.30
2014-08-01 4.33
2014-09-01 4.33
2014-10-01 4.36
2014-11-01 4.36
2014-12-01 4.36
2015-01-01 4.37
2015-02-01 4.22
2015-03-01 4.20
2015-04-01 4.18
2015-05-01 4.28
2015-06-01 4.35
2015-07-01 4.32
2015-08-01 4.10
2015-09-01 4.04
2015-10-01 3.89
2015-11-01 3.56
2015-12-01 3.49
2016-01-01 3.45
2016-02-01 3.43
2016-03-01 3.49
2016-04-01 3.48
2016-05-01 3.42
2016-06-01 3.39
2016-07-01 3.33
2016-08-01 3.35
2016-09-01 3.36
2016-10-01 3.35
2016-11-01 3.33
2016-12-01 3.33
2017-01-01 3.40
2017-02-01 3.45
2017-03-01 3.46
2017-04-01 3.46
2017-05-01 3.70
2017-06-01 4.78
2017-07-01 5.19
2017-08-01 5.19
2017-09-01 5.24
2017-10-01 5.18
2017-11-01 5.18
2017-12-01 5.23
2018-01-01 5.38
2018-02-01 5.45
2018-03-01 5.42
2018-04-01 5.27
2018-05-01 5.30
2018-06-01 5.25
2018-07-01 5.25
2018-08-01 5.03
2018-09-01 5.12