Month	Percent
1975-08-01	11.91
1975-09-01	11.91
1975-10-01	11.91
1975-11-01	11.92
1975-12-01	11.97
1976-01-01	11.86
1976-02-01	11.83
1976-03-01	11.78
1976-04-01	11.79
1976-05-01	11.78
1976-06-01	11.76
1976-07-01	11.74
1976-08-01	11.74
1976-09-01	11.74
1976-10-01	11.96
1976-11-01	12.03
1976-12-01	12.12
1977-01-01	12.05
1977-02-01	12.00
1977-03-01	11.99
1977-04-01	12.03
1977-05-01	11.93
1977-06-01	12.59
1977-07-01	13.25
1977-08-01	13.52
1977-09-01	13.57
1977-10-01	13.64
1977-11-01	13.93
1977-12-01	14.04
1978-01-01	14.33
1978-02-01	14.47
1978-03-01	14.62
1978-04-01	14.87
1978-05-01	15.02
1978-06-01	15.16
1978-07-01	15.26
1978-08-01	15.29
1978-09-01	15.38
1978-10-01	15.49
1978-11-01	15.81
1978-12-01	15.88
1979-01-01	15.98
1979-02-01	15.97
1979-03-01	15.98
1979-04-01	15.99
1979-05-01	16.02
1979-06-01	16.04
1979-07-01	16.08
1979-08-01	16.10
1979-09-01	16.51
1979-10-01	16.69
1979-11-01	17.37
1979-12-01	17.52
1980-01-01	17.90
1980-02-01	18.39
1980-03-01	19.20
1980-04-01	19.83
1980-05-01	20.39
1980-06-01	20.47
1980-07-01	20.53
1980-08-01	20.82
1980-09-01	21.51
1980-10-01	22.42
1980-11-01	22.77
1980-12-01	24.25
1981-01-01	25.46
1981-02-01	25.98
1981-03-01	26.59
1981-04-01	26.91
1981-05-01	27.22
1981-06-01	27.66
1981-07-01	28.42
1981-08-01	29.50
1981-09-01	30.45
1981-10-01	31.22
1981-11-01	31.77
1981-12-01	31.81
1982-01-01	32.34
1982-02-01	33.43
1982-03-01	33.67
1982-04-01	34.39
1982-05-01	36.26
1982-06-01	39.59
1982-07-01	43.23
1982-08-01	46.42
1982-09-01	47.88
1982-10-01	45.99
1982-11-01	45.51
1982-12-01	46.12
1983-01-01	50.29
1983-02-01	54.24
1983-03-01	56.16
1983-04-01	57.21
1983-05-01	58.14
1983-06-01	58.63
1983-07-01	58.73
1983-08-01	58.23
1983-09-01	57.78
1983-10-01	57.14
1983-11-01	56.82
1983-12-01	56.44
1984-01-01	55.95
1984-02-01	55.16
1984-03-01	53.11
1984-04-01	51.10
1984-05-01	50.12
1984-06-01	50.38
1984-07-01	50.69
1984-08-01	50.93
1984-09-01	50.60
1984-10-01	49.34
1984-11-01	48.31
1984-12-01	47.54
1985-01-01	47.17
1985-02-01	47.33
1985-03-01	49.36
1985-04-01	51.93
1985-05-01	53.76
1985-06-01	54.92
1985-07-01	57.00
1985-08-01	59.06
1985-09-01	60.98
1985-10-01	62.29
1985-11-01	63.39
1985-12-01	65.66
1986-01-01	68.55
1986-02-01	70.30
1986-03-01	71.79
1986-04-01	73.48
1986-05-01	75.02
1986-06-01	76.97
1986-07-01	81.36
1986-08-01	84.40
1986-09-01	87.72
1986-10-01	91.48
1986-11-01	94.19
1986-12-01	95.33
1987-01-01	95.89
1987-02-01	96.20
1987-03-01	96.25
1987-04-01	95.79
1987-05-01	94.79
1987-06-01	93.76
1987-07-01	92.91
1987-08-01	92.15
1987-09-01	91.02
1987-10-01	90.30
1987-11-01	92.37
1987-12-01	104.29
1988-01-01	122.54
1988-02-01	135.88
1988-03-01	117.16
1988-04-01	81.03
1988-05-01	60.59
1988-06-01	46.76
1988-07-01	40.72
1988-08-01	39.90
1988-09-01	39.90
1988-10-01	40.03
1988-11-01	41.65
1988-12-01	45.48
1989-01-01	49.37
1989-02-01	48.70
1989-03-01	47.30
1989-04-01	46.91
1989-05-01	49.15
1989-06-01	51.97
1989-07-01	51.50
1989-08-01	38.12
1989-09-01	35.24
1989-10-01	37.40
1989-11-01	39.51
1989-12-01	40.11
1990-01-01	42.08
1990-02-01	44.87
1990-03-01	47.15
1990-04-01	47.20
1990-05-01	42.62
1990-06-01	35.16
1990-07-01	33.05
1990-08-01	31.27
1990-09-01	31.11
1990-10-01	31.52
1990-11-01	29.56
1990-12-01	29.23
1991-01-01	27.14
1991-02-01	25.71
1991-03-01	24.29
1991-04-01	23.62
1991-05-01	23.10
1991-06-01	21.79
1991-07-01	20.99
1991-08-01	20.55
1991-09-01	21.72
1991-10-01	21.29
1991-11-01	20.52
1991-12-01	19.95
1992-01-01	18.98
1992-02-01	18.22
1992-03-01	16.60
1992-04-01	15.75
1992-05-01	15.56
1992-06-01	16.01
1992-07-01	18.07
1992-08-01	19.54
1992-09-01	20.16
1992-10-01	21.86
1992-11-01	21.79
1992-12-01	22.76
1993-01-01	22.79
1993-02-01	22.72
1993-03-01	21.31
1993-04-01	20.16
1993-05-01	19.75
1993-06-01	18.68
1993-07-01	17.36
1993-08-01	16.91
1993-09-01	16.18
1993-10-01	15.57
1993-11-01	16.62
1993-12-01	14.68
1994-01-01	13.22
1994-02-01	11.96
1994-03-01	11.53
1994-04-01	14.16
1994-05-01	17.03
1994-06-01	17.18
1994-07-01	17.82
1994-08-01	17.16
1994-09-01	16.73
1994-10-01	15.96
1994-11-01	16.34
1994-12-01	16.96
1995-01-01	29.87
1995-02-01	35.98
1995-03-01	56.82
1995-04-01	70.26
1995-05-01	57.86
1995-06-01	46.39
1995-07-01	41.42
1995-08-01	37.10
1995-09-01	34.61
1995-10-01	37.08
1995-11-01	47.54
1995-12-01	46.54
1996-01-01	40.18
1996-02-01	35.91
1996-03-01	39.12
1996-04-01	35.21
1996-05-01	29.38
1996-06-01	27.05
1996-07-01	29.18
1996-08-01	27.52
1996-09-01	24.92
1996-10-01	25.04
1996-11-01	28.03
1996-12-01	26.97
1997-01-01	24.08
1997-02-01	21.06
1997-03-01	21.10
1997-04-01	21.07
1997-05-01	18.73
1997-06-01	18.78
1997-07-01	18.05
1997-08-01	17.34
1997-09-01	17.18
1997-10-01	16.56
1997-11-01	17.74
1997-12-01	17.79
1998-01-01	16.98
1998-02-01	17.03
1998-03-01	17.37
1998-04-01	17.66
1998-05-01	16.85
1998-06-01	17.24
1998-07-01	17.75
1998-08-01	19.05
1998-09-01	27.54
1998-10-01	29.28
1998-11-01	27.76
1998-12-01	28.56
1999-01-01	28.31
1999-02-01	26.90
1999-03-01	22.84
1999-04-01	19.16
1999-05-01	17.82
1999-06-01	18.62
1999-07-01	18.08
1999-08-01	18.17
1999-09-01	17.94
1999-10-01	17.25
1999-11-01	16.26
1999-12-01	15.42
2000-01-01	15.29
2000-02-01	15.18
2000-03-01	13.67
2000-04-01	12.48
2000-05-01	12.51
2000-06-01	13.53
2000-07-01	12.98
2000-08-01	13.05
2000-09-01	13.29
2000-10-01	13.51
2000-11-01	14.44
2000-12-01	14.39
2001-01-01	14.66
2001-02-01	14.63
2001-03-01	14.08
2001-04-01	13.32
2001-05-01	11.79
2001-06-01	9.47
2001-07-01	8.24
2001-08-01	7.45
2001-09-01	7.52
2001-10-01	7.89
2001-11-01	6.58
2001-12-01	5.81
2002-01-01	5.52
2002-02-01	6.01
2002-03-01	5.82
2002-04-01	4.86
2002-05-01	5.02
2002-06-01	5.37
2002-07-01	5.56
2002-08-01	5.05
2002-09-01	5.17
2002-10-01	5.48
2002-11-01	5.37
2002-12-01	5.13
2003-01-01	5.37
2003-02-01	6.26
2003-03-01	6.38
2003-04-01	5.89
2003-05-01	4.37
2003-06-01	3.91
2003-07-01	3.59
2003-08-01	3.33
2003-09-01	3.34
2003-10-01	3.59
2003-11-01	3.48
2003-12-01	3.91
2004-01-01	3.67
2004-02-01	3.64
2004-03-01	4.19
2004-04-01	4.12
2004-05-01	4.30
2004-06-01	4.41
2004-07-01	4.59
2004-08-01	4.77
2004-09-01	5.03
2004-10-01	5.26
2004-11-01	5.63
2004-12-01	5.84
2005-01-01	5.85
2005-02-01	6.08
2005-03-01	6.39
2005-04-01	6.61
2005-05-01	6.78
2005-06-01	6.71
2005-07-01	6.72
2005-08-01	6.84
2005-09-01	6.71
2005-10-01	6.62
2005-11-01	6.38
2005-12-01	5.89
2006-01-01	5.73
2006-02-01	5.57
2006-03-01	5.50
2006-04-01	5.22
2006-05-01	5.09
2006-06-01	5.08
2006-07-01	4.95
2006-08-01	4.97
2006-09-01	4.89
2006-10-01	4.92
2006-11-01	4.94
2006-12-01	4.82
2007-01-01	4.83
2007-02-01	4.82
2007-03-01	4.92
2007-04-01	4.86
2007-05-01	4.92
2007-06-01	5.01
2007-07-01	5.03
2007-08-01	5.05
2007-09-01	5.08
2007-10-01	5.14
2007-11-01	5.26
2007-12-01	5.13
2008-01-01	5.20
2008-02-01	5.39
2008-03-01	5.41
2008-04-01	5.45
2008-05-01	5.48
2008-06-01	5.53
2008-07-01	5.69
2008-08-01	5.85
2008-09-01	5.99
2008-10-01	6.09
2008-11-01	6.17
2008-12-01	6.02
2009-01-01	5.82
2009-02-01	5.58
2009-03-01	5.37
2009-04-01	4.95
2009-05-01	4.38
2009-06-01	3.95
2009-07-01	3.63
2009-08-01	3.47
2009-09-01	3.46
2009-10-01	3.47
2009-11-01	3.45
2009-12-01	3.42
2010-01-01	3.44
2010-02-01	3.41
2010-03-01	3.40
2010-04-01	3.40
2010-05-01	3.40
2010-06-01	3.43
2010-07-01	3.43
2010-08-01	3.45
2010-09-01	3.47
2010-10-01	3.44
2010-11-01	3.35
2010-12-01	3.28
2011-01-01	3.29
2011-02-01	3.31
2011-03-01	3.34
2011-04-01	3.38
2011-05-01	3.35
2011-06-01	3.38
2011-07-01	3.39
2011-08-01	3.33
2011-09-01	3.33
2011-10-01	3.35
2011-11-01	3.32
2011-12-01	3.26
2012-01-01	3.23
2012-02-01	3.26
2012-03-01	3.26
2012-04-01	3.28
2012-05-01	3.25
2012-06-01	3.24
2012-07-01	3.22
2012-08-01	3.22
2012-09-01	3.26
2012-10-01	3.28
2012-11-01	3.30
2012-12-01	3.25
2013-01-01	3.24
2013-02-01	3.29
2013-03-01	3.18
2013-04-01	3.03
2013-05-01	2.99
2013-06-01	2.97
2013-07-01	2.94
2013-08-01	2.98
2013-09-01	2.83
2013-10-01	2.85
2013-11-01	2.74
2013-12-01	2.64
2014-01-01	2.57
2014-02-01	2.61
2014-03-01	2.54
2014-04-01	2.55
2014-05-01	2.60
2014-06-01	2.50
2014-07-01	2.35
2014-08-01	2.30
2014-09-01	2.28
2014-10-01	2.26
2014-11-01	2.25
2014-12-01	2.15
2015-01-01	2.20
2015-02-01	2.24
2015-03-01	2.21
2015-04-01	2.23
2015-05-01	2.24
2015-06-01	2.23
2015-07-01	2.15
2015-08-01	2.13
2015-09-01	2.16
2015-10-01	2.16
2015-11-01	2.13
2015-12-01	2.11
2016-01-01	2.19
2016-02-01	2.24
2016-03-01	2.40
2016-04-01	2.47
2016-05-01	2.53
2016-06-01	2.57
2016-07-01	2.67
2016-08-01	2.75
2016-09-01	2.82
2016-10-01	2.98
2016-11-01	3.11
2016-12-01	3.28
2017-01-01	3.60
2017-02-01	3.72
2017-03-01	3.93
2017-04-01	4.07
2017-05-01	4.18
2017-06-01	4.31
2017-07-01	4.33
2017-08-01	4.48
2017-09-01	4.51
2017-10-01	4.56
2017-11-01	4.66
2017-12-01	4.62
2018-01-01	4.69
2018-02-01	4.86
2018-03-01	5.01
2018-04-01	5.04
2018-05-01	5.06
2018-06-01	5.10
2018-07-01	5.21
2018-08-01	5.36
2018-09-01	5.46
2018-10-01	5.41