Monthly Percent
1973-12-01 7.88
1974-01-01 8.38
1974-02-01 8.75
1974-03-01 9.00
1974-04-01 9.00
1974-05-01 9.13
1974-06-01 9.41
1974-07-01 10.00
1974-08-01 11.25
1974-09-01 12.38
1974-10-01 13.75
1974-11-01 12.75
1974-12-01 11.00
1975-01-01 9.75
1975-02-01 9.88
1975-03-01 11.00
1975-04-01 9.25
1975-05-01 8.25
1975-06-01 8.00
1975-07-01 7.00
1975-08-01 7.13
1975-09-01 7.63
1975-10-01 7.25
1975-11-01 7.13
1975-12-01 7.18
1976-01-01 6.25
1976-02-01 7.38
1976-03-01 8.25
1976-04-01 8.13
1976-05-01 7.75
1976-06-01 7.25
1976-07-01 8.40
1976-08-01 8.45
1976-09-01 9.75
1976-10-01 9.63
1976-11-01 9.25
1976-12-01 10.38
1977-01-01 12.00
1977-02-01 13.13
1977-03-01 15.00
1977-04-01 14.50
1977-05-01 14.63
1977-06-01 13.50
1977-07-01 14.30
1977-08-01 15.63
1977-09-01 14.25
1977-10-01 13.75
1977-11-01 12.13
1977-12-01 11.50
1978-01-01 11.50
1978-02-01 12.13
1978-03-01 12.13
1978-04-01 11.50
1978-05-01 11.00
1978-06-01 10.25
1978-07-01 10.00
1978-08-01 10.20
1978-09-01 10.25
1978-10-01 10.50
1978-11-01 10.62
1978-12-01 11.63
1979-01-01 12.38
1979-02-01 12.87
1979-03-01 13.12
1979-04-01 14.25
1979-05-01 14.50
1979-06-01 14.50
1979-07-01 14.93
1979-08-01 14.93
1979-09-01 15.45
1979-10-01 16.07
1979-11-01 16.20
1979-12-01 16.32
1980-01-01 15.82
1980-02-01 15.82
1980-03-01 15.55
1980-04-01 14.92
1980-05-01 14.25
1980-06-01 13.25
1980-07-01 13.27
1980-08-01 13.37
1980-09-01 13.85
1980-10-01 13.95
1980-11-01 14.05
1980-12-01 14.30
1981-01-01 14.22
1981-02-01 14.80
1981-03-01 15.15
1981-04-01 15.02
1981-05-01 14.30
1981-06-01 14.15
1981-07-01 15.25
1981-08-01 15.80
1981-09-01 15.90
1981-10-01 16.40
1981-11-01 16.25
1981-12-01 15.85
1982-01-01 16.62
1982-02-01 17.00
1982-03-01 17.87
1982-04-01 18.00
1982-05-01 16.63
1982-06-01 16.63
1982-07-01 16.63
1982-08-01 16.63
1982-09-01 17.10
1982-10-01 17.42
1982-11-01 17.13
1982-12-01 16.43
1983-01-01 15.35
1983-02-01 14.50
1983-03-01 14.05
1983-04-01 14.45
1983-05-01 15.50
1983-06-01 14.50
1983-07-01 12.75
1983-08-01 11.27
1983-09-01 10.12
1983-10-01 11.12
1983-11-01 11.55
1983-12-01 11.87
1984-01-01 13.50
1984-02-01 13.88
1984-03-01 13.25
1984-04-01 14.10
1984-05-01 14.25
1984-06-01 16.00
1984-07-01 15.38
1984-08-01 15.25
1984-09-01 16.02
1984-10-01 17.60
1984-11-01 15.79
1984-12-01 15.25
1985-01-01 17.31
1985-02-01 20.27
1985-03-01 26.47
1985-04-01 22.07
1985-05-01 24.25
1985-06-01 23.73
1985-07-01 24.02
1985-08-01 26.13
1985-09-01 27.20
1985-10-01 26.57
1985-11-01 22.03
1985-12-01 19.61
1986-01-01 22.26
1986-02-01 23.52
1986-03-01 22.39
1986-04-01 21.54
1986-05-01 17.77
1986-06-01 15.31
1986-07-01 16.45
1986-08-01 16.49
1986-09-01 16.03
1986-10-01 16.28
1986-11-01 18.19
1986-12-01 22.67
1987-01-01 23.51
1987-02-01 25.23
1987-03-01 26.06
1987-04-01 26.35
1987-05-01 22.51
1987-06-01 19.22
1987-07-01 18.46
1987-08-01 18.10
1987-09-01 19.09
1987-10-01 19.77
1987-11-01 18.21
1987-12-01 16.81
1988-01-01 16.97
1988-02-01 16.76
1988-03-01 15.99
1988-04-01 15.90
1988-05-01 16.21
1988-06-01 15.86
1988-07-01 14.99
1988-08-01 14.50
1988-09-01 14.42
1988-10-01 14.26
1988-11-01 14.34
1988-12-01 14.51
1989-01-01 13.80
1989-02-01 13.40
1989-03-01 13.32
1989-04-01 13.34
1989-05-01 13.49
1989-06-01 13.52
1989-07-01 13.40
1989-08-01 12.98
1989-09-01 13.42
1989-10-01 13.85
1989-11-01 13.88
1989-12-01 14.07
1990-01-01 13.90
1990-02-01 13.83
1990-03-01 13.69
1990-04-01 13.59
1990-05-01 13.48
1990-06-01 13.82
1990-07-01 13.74
1990-08-01 14.49
1990-09-01 14.63
1990-10-01 14.53
1990-11-01 13.98
1990-12-01 13.03
1991-01-01 12.37
1991-02-01 11.95
1991-03-01 11.95
1991-04-01 11.35
1991-05-01 10.08
1991-06-01 9.85
1991-07-01 9.65
1991-08-01 9.44
1991-09-01 8.90
1991-10-01 8.04
1991-11-01 8.18
1991-12-01 7.83
1992-01-01 7.43
1992-02-01 7.48
1992-03-01 7.34
1992-04-01 7.07
1992-05-01 6.83
1992-06-01 6.77
1992-07-01 6.18
1992-08-01 6.14
1992-09-01 6.26
1992-10-01 6.23
1992-11-01 6.16
1992-12-01 6.87
1993-01-01 7.87
1993-02-01 7.53
1993-03-01 7.24
1993-04-01 7.15
1993-05-01 6.58
1993-06-01 6.42
1993-07-01 5.70
1993-08-01 5.62
1993-09-01 5.30
1993-10-01 5.45
1993-11-01 5.85
1993-12-01 5.25
1994-01-01 4.66
1994-02-01 4.64
1994-03-01 5.43
1994-04-01 6.39
1994-05-01 5.99
1994-06-01 6.07
1994-07-01 7.08
1994-08-01 7.06
1994-09-01 7.49
1994-10-01 8.01
1994-11-01 8.47
1994-12-01 9.53
1995-01-01 9.29
1995-02-01 9.37
1995-03-01 9.42
1995-04-01 9.23
1995-05-01 9.10
1995-06-01 9.04
1995-07-01 8.84
1995-08-01 9.03
1995-09-01 9.22
1995-10-01 8.69
1995-11-01 8.31
1995-12-01 8.56
1996-01-01 8.61
1996-02-01 8.51
1996-03-01 8.86
1996-04-01 9.22
1996-05-01 9.82
1996-06-01 10.04
1996-07-01 10.12
1996-08-01 9.87
1996-09-01 9.90
1996-10-01 9.61
1996-11-01 8.97
1996-12-01 8.08
1997-01-01 7.55
1997-02-01 7.46
1997-03-01 7.58
1997-04-01 7.49
1997-05-01 7.02
1997-06-01 6.96
1997-07-01 7.79
1997-08-01 8.34
1997-09-01 8.06
1997-10-01 7.76
1997-11-01 7.60
1997-12-01 8.30
1998-01-01 8.89
1998-02-01 8.95
1998-03-01 9.00
1998-04-01 9.26
1998-05-01 8.88
1998-06-01 9.15
1998-07-01 7.75
1998-08-01 6.79
1998-09-01 5.79
1998-10-01 4.85
1998-11-01 4.50
1998-12-01 4.38
1999-01-01 4.47
1999-02-01 4.30
1999-03-01 4.59
1999-04-01 4.64
1999-05-01 4.67
1999-06-01 4.74
1999-07-01 4.72
1999-08-01 4.77
1999-09-01 4.94
1999-10-01 5.10
1999-11-01 5.35
1999-12-01 5.67
2000-01-01 5.68
2000-02-01 5.93
2000-03-01 6.26
2000-04-01 6.49
2000-05-01 6.77
2000-06-01 6.88
2000-07-01 6.83
2000-08-01 6.74
2000-09-01 6.66
2000-10-01 6.65
2000-11-01 6.64
2000-12-01 6.71
2001-01-01 6.53
2001-02-01 6.48
2001-03-01 6.25
2001-04-01 5.97
2001-05-01 5.79
2001-06-01 5.82
2001-07-01 5.79
2001-08-01 5.83
2001-09-01 5.57
2001-10-01 5.15
2001-11-01 4.87
2001-12-01 4.86
2002-01-01 4.86
2002-02-01 4.93
2002-03-01 5.31
2002-04-01 5.68
2002-05-01 5.83
2002-06-01 5.96
2002-07-01 6.00
2002-08-01 5.87
2002-09-01 5.86
2002-10-01 5.88
2002-11-01 5.90
2002-12-01 5.92
2003-01-01 5.86
2003-02-01 5.82
2003-03-01 5.81
2003-04-01 5.73
2003-05-01 5.38
2003-06-01 5.23
2003-07-01 5.11
2003-08-01 5.11
2003-09-01 5.15
2003-10-01 5.19
2003-11-01 5.37
2003-12-01 5.32
2004-01-01 5.35
2004-02-01 5.59
2004-03-01 5.54
2004-04-01 5.59
2004-05-01 5.90
2004-06-01 6.07
2004-07-01 6.25
2004-08-01 6.44
2004-09-01 6.64
2004-10-01 6.75
2004-11-01 6.72
2004-12-01 6.71
2005-01-01 6.76
2005-02-01 6.83
2005-03-01 6.99
2005-04-01 7.05
2005-05-01 7.05
2005-06-01 7.03
2005-07-01 7.03
2005-08-01 7.03
2005-09-01 7.09
2005-10-01 7.28
2005-11-01 7.54
2005-12-01 7.66
2006-01-01 7.64
2006-02-01 7.53
2006-03-01 7.49
2006-04-01 7.47
2006-05-01 7.49
2006-06-01 7.47
2006-07-01 7.48
2006-08-01 7.49
2006-09-01 7.56
2006-10-01 7.66
2006-11-01 7.61
2006-12-01 7.66
2007-01-01 7.70
2007-02-01 7.75
2007-03-01 7.88
2007-04-01 7.98
2007-05-01 8.09
2007-06-01 8.32
2007-07-01 8.44
2007-08-01 8.72
2007-09-01 8.81
2007-10-01 8.68
2007-11-01 8.73
2007-12-01 8.90
2008-01-01 8.75
2008-02-01 8.82
2008-03-01 8.91
2008-04-01 8.87
2008-05-01 8.71
2008-06-01 8.68
2008-07-01 8.46
2008-08-01 8.20
2008-09-01 7.95
2008-10-01 7.43
2008-11-01 6.25
2008-12-01 5.23
2009-01-01 4.38
2009-02-01 3.40
2009-03-01 3.24
2009-04-01 3.12
2009-05-01 2.82
2009-06-01 2.78
2009-07-01 2.79
2009-08-01 2.76
2009-09-01 2.77
2009-10-01 2.79
2009-11-01 2.80
2009-12-01 2.78
2010-01-01 2.78
2010-02-01 2.73
2010-03-01 2.67
2010-04-01 2.69
2010-05-01 2.89
2010-06-01 3.07
2010-07-01 3.23
2010-08-01 3.25
2010-09-01 3.18
2010-10-01 3.18
2010-11-01 3.17
2010-12-01 3.17
2011-01-01 3.19
2011-02-01 3.13
2011-03-01 2.69
2011-04-01 2.65
2011-05-01 2.66
2011-06-01 2.65
2011-07-01 2.71
2011-08-01 2.90
2011-09-01 2.88
2011-10-01 2.76
2011-11-01 2.69
2011-12-01 2.69
2012-01-01 2.74
2012-02-01 2.75
2012-03-01 2.74
2012-04-01 2.74
2012-05-01 2.59
2012-06-01 2.61
2012-07-01 2.67
2012-08-01 2.64
2012-09-01 2.64
2012-10-01 2.65
2012-11-01 2.64
2012-12-01 2.65
2013-01-01 2.66
2013-02-01 2.66
2013-03-01 2.64
2013-04-01 2.65
2013-05-01 2.64
2013-06-01 2.64
2013-07-01 2.64
2013-08-01 2.64
2013-09-01 2.65
2013-10-01 2.67
2013-11-01 2.66
2013-12-01 2.73
2014-01-01 2.88
2014-02-01 2.93
2014-03-01 3.05
2014-04-01 3.24
2014-05-01 3.38
2014-06-01 3.52
2014-07-01 3.67
2014-08-01 3.69
2014-09-01 3.71
2014-10-01 3.68
2014-11-01 3.67
2014-12-01 3.67
2015-01-01 3.67
2015-02-01 3.63
2015-03-01 3.63
2015-04-01 3.63
2015-05-01 3.53
2015-06-01 3.33
2015-07-01 3.13
2015-08-01 2.95
2015-09-01 2.85
2015-10-01 2.86
2015-11-01 2.89
2015-12-01 2.79
2016-01-01 2.73
2016-02-01 2.62
2016-03-01 2.43
2016-04-01 2.34
2016-05-01 2.38
2016-06-01 2.37
2016-07-01 2.37
2016-08-01 2.24
2016-09-01 2.23
2016-10-01 2.15
2016-11-01 2.07
2016-12-01 2.03
2017-01-01 1.98
2017-02-01 2.02
2017-03-01 1.98
2017-04-01 1.97
2017-05-01 1.98
2017-06-01 1.95
2017-07-01 1.96
2017-08-01 1.95
2017-09-01 1.95
2017-10-01 1.94
2017-11-01 1.93
2017-12-01 1.88
2018-01-01 1.88
2018-02-01 1.91
2018-03-01 1.93
2018-04-01 2.01
2018-05-01 2.02
2018-06-01 2.01
2018-07-01 1.94
2018-08-01 1.91
2018-09-01 1.90
2018-10-01 1.89