Monthly Percent
1970-12-01 9.86
1971-01-01 9.82
1971-02-01 9.85
1971-03-01 9.51
1971-04-01 9.40
1971-05-01 9.29
1971-06-01 9.30
1971-07-01 9.36
1971-08-01 9.35
1971-09-01 9.11
1971-10-01 8.78
1971-11-01 8.61
1971-12-01 8.48
1972-01-01 8.37
1972-02-01 8.25
1972-03-01 8.38
1972-04-01 8.30
1972-05-01 8.64
1972-06-01 9.81
1972-07-01 9.76
1972-08-01 9.51
1972-09-01 9.46
1972-10-01 9.45
1972-11-01 9.47
1972-12-01 9.46
1973-01-01 9.56
1973-02-01 9.61
1973-03-01 10.01
1973-04-01 10.00
1973-05-01 10.04
1973-06-01 10.18
1973-07-01 10.76
1973-08-01 11.34
1973-09-01 11.42
1973-10-01 11.44
1973-11-01 11.92
1973-12-01 12.33
1974-01-01 13.24
1974-02-01 13.37
1974-03-01 13.80
1974-04-01 14.04
1974-05-01 13.76
1974-06-01 14.61
1974-07-01 14.48
1974-08-01 14.95
1974-09-01 14.66
1974-10-01 15.32
1974-11-01 16.35
1974-12-01 16.86
1975-01-01 15.20
1975-02-01 14.06
1975-03-01 13.18
1975-04-01 13.88
1975-05-01 13.64
1975-06-01 13.76
1975-07-01 13.16
1975-08-01 13.36
1975-09-01 13.81
1975-10-01 14.47
1975-11-01 14.45
1975-12-01 14.64
1976-01-01 13.77
1976-02-01 13.78
1976-03-01 14.11
1976-04-01 14.23
1976-05-01 14.14
1976-06-01 13.89
1976-07-01 14.14
1976-08-01 14.37
1976-09-01 15.23
1976-10-01 16.37
1976-11-01 15.84
1976-12-01 15.49
1977-01-01 14.09
1977-02-01 14.28
1977-03-01 12.70
1977-04-01 13.14
1977-05-01 13.45
1977-06-01 13.58
1977-07-01 13.86
1977-08-01 13.17
1977-09-01 11.87
1977-10-01 11.24
1977-11-01 11.96
1977-12-01 11.30
1978-01-01 11.68
1978-02-01 12.29
1978-03-01 12.28
1978-04-01 12.89
1978-05-01 13.26
1978-06-01 13.31
1978-07-01 12.62
1978-08-01 12.90
1978-09-01 13.08
1978-10-01 12.92
1978-11-01 13.34
1978-12-01 13.44
1979-01-01 14.35
1979-02-01 13.48
1979-03-01 13.33
1979-04-01 13.46
1979-05-01 13.81
1979-06-01 15.37
1979-07-01 15.99
1979-08-01 15.92
1979-09-01 15.72
1979-10-01 16.64
1979-11-01 16.42
1979-12-01 16.29
1980-01-01 15.95
1980-02-01 16.39
1980-03-01 16.82
1980-04-01 16.20
1980-05-01 15.78
1980-06-01 14.64
1980-07-01 14.08
1980-08-01 14.49
1980-09-01 14.57
1980-10-01 14.77
1980-11-01 14.91
1980-12-01 15.63
1981-01-01 16.13
1981-02-01 15.99
1981-03-01 16.18
1981-04-01 16.60
1981-05-01 16.99
1981-06-01 17.31
1981-07-01 17.44
1981-08-01 17.61
1981-09-01 18.22
1981-10-01 18.24
1981-11-01 18.16
1981-12-01 18.34
1982-01-01 19.11
1982-02-01 19.16
1982-03-01 18.83
1982-04-01 18.28
1982-05-01 18.28
1982-06-01 18.58
1982-07-01 17.33
1982-08-01 15.93
1982-09-01 15.17
1982-10-01 13.95
1982-11-01 15.53
1982-12-01 14.54
1983-01-01 14.98
1983-02-01 14.26
1983-03-01 13.96
1983-04-01 13.62
1983-05-01 13.51
1983-06-01 13.61
1983-07-01 13.81
1983-08-01 13.60
1983-09-01 13.72
1983-10-01 13.82
1983-11-01 13.72
1983-12-01 14.24
1984-01-01 13.94
1984-02-01 14.16
1984-03-01 14.08
1984-04-01 14.14
1984-05-01 14.49
1984-06-01 14.58
1984-07-01 14.89
1984-08-01 14.95
1984-09-01 14.98
1984-10-01 14.99
1984-11-01 15.25
1984-12-01 14.90
1985-01-01 14.85
1985-02-01 14.69
1985-03-01 14.08
1985-04-01 13.26
1985-05-01 13.03
1985-06-01 12.61
1985-07-01 11.81
1985-08-01 11.42
1985-09-01 11.70
1985-10-01 11.66
1985-11-01 12.19
1985-12-01 12.06
1986-01-01 12.29
1986-02-01 11.56
1986-03-01 10.26
1986-04-01 9.29
1986-05-01 9.30
1986-06-01 9.62
1986-07-01 10.00
1986-08-01 10.79
1986-09-01 11.72
1986-10-01 13.68
1986-11-01 13.25
1986-12-01 12.91
1987-01-01 12.53
1987-02-01 12.68
1987-03-01 11.96
1987-04-01 10.87
1987-05-01 10.56
1987-06-01 10.94
1987-07-01 11.08
1987-08-01 11.67
1987-09-01 11.23
1987-10-01 10.81
1987-11-01 10.33
1987-12-01 10.45
1988-01-01 10.30
1988-02-01 10.10
1988-03-01 9.82
1988-04-01 9.54
1988-05-01 9.58
1988-06-01 9.52
1988-07-01 9.41
1988-08-01 9.20
1988-09-01 9.08
1988-10-01 8.59
1988-11-01 8.67
1988-12-01 8.52
1989-01-01 8.46
1989-02-01 9.00
1989-03-01 8.80
1989-04-01 9.14
1989-05-01 9.47
1989-06-01 9.25
1989-07-01 8.64
1989-08-01 9.20
1989-09-01 9.21
1989-10-01 9.59
1989-11-01 9.66
1989-12-01 9.62
1990-01-01 9.70
1990-02-01 10.44
1990-03-01 10.95
1990-04-01 10.39
1990-05-01 10.20
1990-06-01 10.03
1990-07-01 9.68
1990-08-01 10.30
1990-09-01 10.74
1990-10-01 10.47
1990-11-01 10.34
1990-12-01 10.05
1991-01-01 10.05
1991-02-01 9.59
1991-03-01 9.35
1991-04-01 9.34
1991-05-01 9.26
1991-06-01 9.19
1991-07-01 9.40
1991-08-01 9.35
1991-09-01 9.29
1991-10-01 9.22
1991-11-01 9.22
1991-12-01 9.23
1992-01-01 8.86
1992-02-01 8.77
1992-03-01 8.99
1992-04-01 8.95
1992-05-01 8.82
1992-06-01 8.99
1992-07-01 9.22
1992-08-01 9.23
1992-09-01 9.94
1992-10-01 9.54
1992-11-01 10.38
1992-12-01 10.11
1993-01-01 9.68
1993-02-01 9.13
1993-03-01 8.28
1993-04-01 8.10
1993-05-01 7.82
1993-06-01 7.33
1993-07-01 7.31
1993-08-01 6.95
1993-09-01 6.99
1993-10-01 6.59
1993-11-01 6.51
1993-12-01 6.26
1994-01-01 6.14
1994-02-01 6.74
1994-03-01 7.33
1994-04-01 7.67
1994-05-01 8.45
1994-06-01 8.64
1994-07-01 8.44
1994-08-01 8.44
1994-09-01 8.89
1994-10-01 8.62
1994-11-01 8.40
1994-12-01 8.76
1995-01-01 8.67
1995-02-01 8.74
1995-03-01 8.86
1995-04-01 8.66
1995-05-01 8.10
1995-06-01 8.58
1995-07-01 8.32
1995-08-01 8.09
1995-09-01 8.07
1995-10-01 7.85
1995-11-01 7.43
1995-12-01 7.34
1996-01-01 7.21
1996-02-01 7.74
1996-03-01 7.89
1996-04-01 7.35
1996-05-01 7.55
1996-06-01 7.49
1996-07-01 7.52
1996-08-01 7.50
1996-09-01 6.88
1996-10-01 6.83
1996-11-01 6.45
1996-12-01 6.58
1997-01-01 6.54
1997-02-01 6.34
1997-03-01 6.79
1997-04-01 6.62
1997-05-01 6.61
1997-06-01 6.44
1997-07-01 6.21
1997-08-01 6.29
1997-09-01 5.94
1997-10-01 6.03
1997-11-01 5.78
1997-12-01 5.48
1998-01-01 5.29
1998-02-01 5.18
1998-03-01 5.07
1998-04-01 5.16
1998-05-01 5.08
1998-06-01 5.00
1998-07-01 4.87
1998-08-01 4.59
1998-09-01 4.22
1998-10-01 4.35
1998-11-01 4.16
1998-12-01 3.99
1999-01-01 3.84
1999-02-01 4.18
1999-03-01 4.10
1999-04-01 3.89
1999-05-01 4.34
1999-06-01 4.78
1999-07-01 5.06
1999-08-01 5.17
1999-09-01 5.37
1999-10-01 5.44
1999-11-01 5.46
1999-12-01 5.60
2000-01-01 5.78
2000-02-01 5.75
2000-03-01 5.45
2000-04-01 5.52
2000-05-01 5.47
2000-06-01 5.48
2000-07-01 5.46
2000-08-01 5.58
2000-09-01 5.46
2000-10-01 5.48
2000-11-01 5.24
2000-12-01 5.07
2001-01-01 5.02
2001-02-01 4.98
2001-03-01 4.95
2001-04-01 5.27
2001-05-01 5.37
2001-06-01 5.30
2001-07-01 5.07
2001-08-01 4.95
2001-09-01 4.95
2001-10-01 4.53
2001-11-01 4.73
2001-12-01 5.11
2002-01-01 5.21
2002-02-01 5.22
2002-03-01 5.47
2002-04-01 5.37
2002-05-01 5.38
2002-06-01 5.16
2002-07-01 5.01
2002-08-01 4.82
2002-09-01 4.54
2002-10-01 4.74
2002-11-01 4.63
2002-12-01 4.30
2003-01-01 4.16
2003-02-01 3.99
2003-03-01 4.10
2003-04-01 4.15
2003-05-01 3.80
2003-06-01 3.84
2003-07-01 4.19
2003-08-01 4.21
2003-09-01 3.99
2003-10-01 4.32
2003-11-01 4.44
2003-12-01 4.31
2004-01-01 4.27
2004-02-01 4.10
2004-03-01 3.98
2004-04-01 4.23
2004-05-01 4.30
2004-06-01 4.35
2004-07-01 4.22
2004-08-01 4.02
2004-09-01 3.98
2004-10-01 3.87
2004-11-01 3.75
2004-12-01 3.67
2005-01-01 3.48
2005-02-01 3.65
2005-03-01 3.60
2005-04-01 3.38
2005-05-01 3.23
2005-06-01 3.13
2005-07-01 3.21
2005-08-01 3.05
2005-09-01 3.08
2005-10-01 3.33
2005-11-01 3.44
2005-12-01 3.27
2006-01-01 3.46
2006-02-01 3.49
2006-03-01 3.78
2006-04-01 3.97
2006-05-01 3.93
2006-06-01 4.08
2006-07-01 3.91
2006-08-01 3.75
2006-09-01 3.67
2006-10-01 3.78
2006-11-01 3.70
2006-12-01 3.95
2007-01-01 4.12
2007-02-01 3.97
2007-03-01 4.07
2007-04-01 4.20
2007-05-01 4.44
2007-06-01 4.62
2007-07-01 4.45
2007-08-01 4.38
2007-09-01 4.42
2007-10-01 4.40
2007-11-01 4.37
2007-12-01 4.50
2008-01-01 4.21
2008-02-01 4.22
2008-03-01 4.30
2008-04-01 4.59
2008-05-01 4.73
2008-06-01 4.96
2008-07-01 4.78
2008-08-01 4.56
2008-09-01 4.56
2008-10-01 4.55
2008-11-01 4.57
2008-12-01 4.57
2009-01-01 5.70
2009-02-01 5.75
2009-03-01 5.52
2009-04-01 5.27
2009-05-01 5.53
2009-06-01 5.79
2009-07-01 5.04
2009-08-01 4.87
2009-09-01 4.71
2009-10-01 4.76
2009-11-01 4.91
2009-12-01 4.94
2010-01-01 4.83
2010-02-01 4.59
2010-03-01 4.53
2010-04-01 5.20
2010-05-01 4.74
2010-06-01 5.50
2010-07-01 5.04
2010-08-01 5.68
2010-09-01 6.57
2010-10-01 6.92
2010-11-01 9.25
2010-12-01 9.06
2011-01-01 9.15
2011-02-01 9.29
2011-03-01 10.22
2011-04-01 10.47
2011-05-01 11.03
2011-06-01 11.70
2011-07-01 10.85
2011-08-01 8.63
2011-09-01 7.64
2011-10-01 8.15
2011-11-01 9.32
2011-12-01 8.48
2012-01-01 7.29
2012-02-01 7.01
2012-03-01 6.84
2012-04-01 6.82
2012-05-01 7.23
2012-06-01 6.33
2012-07-01 5.98
2012-08-01 5.86
2012-09-01 5.00
2012-10-01 4.66
2012-11-01 4.43
2012-12-01 4.45
2013-01-01 4.06
2013-02-01 3.77
2013-03-01 4.22
2013-04-01 3.52
2013-05-01 3.85
2013-06-01 4.07
2013-07-01 3.88
2013-08-01 4.19
2013-09-01 3.88
2013-10-01 3.50
2013-11-01 3.53
2013-12-01 3.47
2014-01-01 3.31
2014-02-01 3.10
2014-03-01 3.01
2014-04-01 2.82
2014-05-01 2.59
2014-06-01 2.36
2014-07-01 2.21
2014-08-01 1.78
2014-09-01 1.65
2014-10-01 1.71
2014-11-01 1.38
2014-12-01 1.25
2015-01-01 1.16
2015-02-01 0.86
2015-03-01 0.75
2015-04-01 0.93
2015-05-01 1.26
2015-06-01 1.26
2015-07-01 1.18
2015-08-01 1.46
2015-09-01 1.24
2015-10-01 1.11
2015-11-01 1.00
2015-12-01 1.15
2016-01-01 0.96
2016-02-01 0.88
2016-03-01 0.73
2016-04-01 0.96
2016-05-01 0.76
2016-06-01 0.52
2016-07-01 0.43
2016-08-01 0.43
2016-09-01 0.32
2016-10-01 0.64
2016-11-01 0.88
2016-12-01 0.74
2017-01-01 1.16
2017-02-01 0.88
2017-03-01 0.98
2017-04-01 0.84
2017-05-01 0.76
2017-06-01 0.86
2017-07-01 0.83
2017-08-01 0.67
2017-09-01 0.72
2017-10-01 0.57
2017-11-01 0.58
2017-12-01 0.66
2018-01-01 1.13
2018-02-01 1.08
2018-03-01 0.90
2018-04-01 0.96
2018-05-01 0.94
2018-06-01 0.80
2018-07-01 0.90
2018-08-01 0.85
2018-09-01 0.98