Month	Percent
1974-01-01	11.54170
1974-02-01	9.99380
1974-03-01	10.99400
1974-04-01	9.19380
1974-05-01	9.15480
1974-06-01	10.21050
1974-07-01	11.89400
1974-08-01	10.78570
1974-09-01	10.51190
1974-10-01	9.57880
1974-11-01	8.47920
1974-12-01	9.64470
1975-01-01	6.88990
1975-02-01	4.72190
1975-03-01	4.57890
1975-04-01	4.73300
1975-05-01	4.19080
1975-06-01	3.61900
1975-07-01	4.22280
1975-08-01	3.17810
1975-09-01	2.66480
1975-10-01	3.22280
1975-11-01	3.26250
1975-12-01	3.49060
1976-01-01	1.66560
1976-02-01	1.35310
1976-03-01	1.59510
1976-04-01	1.22810
1976-05-01	1.43750
1976-06-01	1.05950
1976-07-01	1.26700
1976-08-01	1.22160
1976-09-01	1.41760
1976-10-01	1.89290
1976-11-01	2.25570
1976-12-01	1.90490
1977-01-01	1.28870
1977-02-01	1.67500
1977-03-01	2.96470
1977-04-01	2.65130
1977-05-01	4.03750
1977-06-01	3.87500
1977-07-01	3.04170
1977-08-01	2.42900
1977-09-01	2.41190
1977-10-01	2.22320
1977-11-01	2.34660
1977-12-01	2.12800
1978-01-01	0.99400
1978-02-01	0.50000
1978-03-01	0.50890
1978-04-01	0.50000
1978-05-01	1.23130
1978-06-01	1.40060
1978-07-01	1.77980
1978-08-01	0.64490
1978-09-01	0.56850
1978-10-01	0.23300
1978-11-01	0.25590
1978-12-01	0.16120
1979-01-01	0.01490
1979-02-01	0.13150
1979-03-01	0.26990
1979-04-01	1.09870
1979-05-01	1.54460
1979-06-01	1.50940
1979-07-01	1.13110
1979-08-01	1.65060
1979-09-01	1.93130
1979-10-01	2.52450
1979-11-01	3.94600
1979-12-01	5.65070
1980-01-01	5.46130
1980-02-01	5.07140
1980-03-01	6.58330
1980-04-01	6.81560
1980-05-01	5.83880
1980-06-01	5.58040
1980-07-01	5.25820
1980-08-01	5.50310
1980-09-01	5.55110
1980-10-01	5.39950
1980-11-01	5.57500
1980-12-01	6.60710
1981-01-01	5.65000
1981-02-01	7.08130
1981-03-01	8.32100
1981-04-01	8.66250
1981-05-01	9.84540
1981-06-01	10.01190
1981-07-01	9.70110
1981-08-01	9.09820
1981-09-01	10.56250
1981-10-01	10.74430
1981-11-01	9.79170
1981-12-01	9.67330
1982-01-01	8.65940
1982-02-01	8.24380
1982-03-01	6.30970
1982-04-01	4.89060
1982-05-01	3.80920
1982-06-01	5.26140
1982-07-01	4.25850
1982-08-01	4.10230
1982-09-01	4.04260
1982-10-01	3.63100
1982-11-01	3.80110
1982-12-01	3.68480
1983-01-01	2.72190
1983-02-01	2.93750
1983-03-01	3.62230
1983-04-01	4.23680
1983-05-01	4.46880
1983-06-01	4.92330
1983-07-01	4.75000
1983-08-01	4.61650
1983-09-01	4.36930
1983-10-01	4.07440
1983-11-01	4.08520
1983-12-01	4.29460
1984-01-01	3.66370
1984-02-01	3.48210
1984-03-01	3.55400
1984-04-01	3.61510
1984-05-01	3.86610
1984-06-01	4.15310
1984-07-01	4.71880
1984-08-01	4.81530
1984-09-01	5.09870
1984-10-01	5.25820
1984-11-01	5.01700
1984-12-01	4.94850
1985-01-01	5.11310
1985-02-01	5.66250
1985-03-01	5.74400
1985-04-01	5.37500
1985-05-01	5.09690
1985-06-01	5.15000
1985-07-01	5.04890
1985-08-01	4.61930
1985-09-01	4.55360
1985-10-01	4.50820
1985-11-01	4.04170
1985-12-01	4.16880
1986-01-01	4.09230
1986-02-01	3.88130
1986-03-01	3.88820
1986-04-01	4.08520
1986-05-01	4.38820
1986-06-01	5.02380
1986-07-01	4.84510
1986-08-01	4.27810
1986-09-01	4.13990
1986-10-01	3.92660
1986-11-01	3.85000
1986-12-01	4.22020
1987-01-01	3.63130
1987-02-01	3.59060
1987-03-01	3.91480
1987-04-01	3.64380
1987-05-01	3.72700
1987-06-01	3.91070
1987-07-01	3.73640
1987-08-01	3.69940
1987-09-01	3.69890
1987-10-01	4.26140
1987-11-01	3.83630
1987-12-01	3.64490
1988-01-01	2.20630
1988-02-01	1.63390
1988-03-01	1.76360
1988-04-01	2.02630
1988-05-01	2.41250
1988-06-01	3.04660
1988-07-01	3.85710
1988-08-01	3.64770
1988-09-01	3.46590
1988-10-01	3.72020
1988-11-01	4.25570
1988-12-01	4.92260
1989-01-01	5.87500
1989-02-01	6.12500
1989-03-01	5.87500
1989-04-01	6.62500
1989-05-01	8.25000
1989-06-01	7.50000
1989-07-01	7.00000
1989-08-01	7.50000
1989-09-01	7.93750
1989-10-01	8.00000
1989-11-01	7.93750
1989-12-01	9.18750
1990-01-01	9.68750
1990-02-01	9.31250
1990-03-01	9.00000
1990-04-01	9.37500
1990-05-01	8.81250
1990-06-01	9.00000
1990-07-01	8.95313
1990-08-01	8.62500
1990-09-01	8.25000
1990-10-01	8.31250
1990-11-01	8.93750
1990-12-01	8.75000
1991-01-01	8.12500
1991-02-01	8.25000
1991-03-01	8.62500
1991-04-01	8.62500
1991-05-01	8.00000
1991-06-01	8.00000
1991-07-01	7.93750
1991-08-01	8.06250
1991-09-01	8.25000
1991-10-01	8.37500
1991-11-01	8.12500
1991-12-01	8.18750
1992-01-01	7.50000
1992-02-01	7.68750
1992-03-01	8.93750
1992-04-01	8.87500
1992-05-01	9.43750
1992-06-01	9.25000
1992-07-01	8.62500
1992-08-01	7.87500
1992-09-01	6.98438
1992-10-01	6.37500
1992-11-01	6.70313
1992-12-01	6.00000
1993-01-01	5.43750
1993-02-01	5.50000
1993-03-01	5.18750
1993-04-01	5.12500
1993-05-01	5.15625
1993-06-01	5.03125
1993-07-01	4.68750
1993-08-01	4.81250
1993-09-01	4.75000
1993-10-01	4.56250
1993-11-01	4.50000
1993-12-01	4.12500
1994-01-01	4.07813
1994-02-01	4.17188
1994-03-01	4.18750
1994-04-01	4.00000
1994-05-01	4.25000
1994-06-01	4.32813
1994-07-01	4.37500
1994-08-01	4.31250
1994-09-01	4.18750
1994-10-01	4.06250
1994-11-01	4.01563
1994-12-01	4.29688
1995-01-01	4.00000
1995-02-01	3.87500
1995-03-01	3.50000
1995-04-01	3.50000
1995-05-01	3.26563
1995-06-01	3.12500
1995-07-01	2.73438
1995-08-01	2.87500
1995-09-01	2.48438
1995-10-01	2.07813
1995-11-01	2.12500
1995-12-01	1.81250
1996-01-01	1.76563
1996-02-01	1.62500
1996-03-01	1.79688
1996-04-01	1.87500
1996-05-01	2.62500
1996-06-01	2.56250
1996-07-01	2.56250
1996-08-01	2.17188
1996-09-01	1.50000
1996-10-01	1.81250
1996-11-01	2.06250
1996-12-01	1.87500
1997-01-01	1.73438
1997-02-01	1.75000
1997-03-01	1.87500
1997-04-01	1.81250
1997-05-01	1.12500
1997-06-01	1.43750
1997-07-01	1.56250
1997-08-01	1.37500
1997-09-01	1.59375
1997-10-01	1.96094
1997-11-01	1.92969
1997-12-01	1.50000
1998-01-01	1.18750
1998-02-01	1.00000
1998-03-01	1.48438
1998-04-01	1.53125
1998-05-01	1.68750
1998-06-01	2.15625
1998-07-01	1.94141
1998-08-01	1.61328
1998-09-01	1.57422
1998-10-01	1.25625
1998-11-01	1.75000
1998-12-01	1.40828
1999-01-01	1.27167
1999-02-01	1.26167
1999-03-01	1.24833
1999-04-01	0.99333
1999-05-01	1.02333
1999-06-01	1.22167
1999-07-01	1.12333
1999-08-01	1.09667
1999-09-01	1.91500
1999-10-01	2.04500
1999-11-01	1.86167
1999-12-01	1.84667
2000-01-01	2.13167
2000-02-01	2.44167
2000-03-01	2.85500
2000-04-01	3.24333
2000-05-01	3.16000
2000-06-01	3.39667
2000-07-01	3.44000
2000-08-01	3.48667
2000-09-01	3.58500
2000-10-01	3.49167
2000-11-01	3.47833
2000-12-01	3.37000
2001-01-01	3.42000
2001-02-01	3.42833
2001-03-01	3.32500
2001-04-01	3.17500
2001-05-01	3.20500
2001-06-01	3.23667
2001-07-01	3.19000
2001-08-01	3.15667
2001-09-01	2.28333
2001-10-01	2.09000
2001-11-01	2.00333
2001-12-01	1.83833
2002-01-01	1.69667
2002-02-01	1.73833
2002-03-01	1.63500
2002-04-01	1.57000
2002-05-01	1.23167
2002-06-01	1.24333
2002-07-01	0.82167
2002-08-01	0.75167
2002-09-01	0.74833
2002-10-01	0.74333
2002-11-01	0.74500
2002-12-01	0.61667
2003-01-01	0.60333
2003-02-01	0.57167
2003-03-01	0.31333
2003-04-01	0.30833
2003-05-01	0.28167
2003-06-01	0.28833
2003-07-01	0.28667
2003-08-01	0.26667
2003-09-01	0.25417
2003-10-01	0.24917
2003-11-01	0.26667
2003-12-01	0.26000
2004-01-01	0.24667
2004-02-01	0.25833
2004-03-01	0.25000
2004-04-01	0.27167
2004-05-01	0.26000
2004-06-01	0.49833
2004-07-01	0.53000
2004-08-01	0.62000
2004-09-01	0.70000
2004-10-01	0.72667
2004-11-01	0.74000
2004-12-01	0.71667
2005-01-01	0.75000
2005-02-01	0.75833
2005-03-01	0.77500
2005-04-01	0.76000
2005-05-01	0.75000
2005-06-01	0.74833
2005-07-01	0.75500
2005-08-01	0.76000
2005-09-01	0.79000
2005-10-01	0.85000
2005-11-01	1.01000
2005-12-01	1.01000
2006-01-01	1.02417
2006-02-01	1.17583
2006-03-01	1.24917
2006-04-01	1.34000
2006-05-01	1.42333
2006-06-01	1.52000
2006-07-01	1.55000
2006-08-01	1.68000
2006-09-01	1.81083
2006-10-01	1.86000
2006-11-01	1.95000
2006-12-01	2.10250
2007-01-01	2.19000
2007-02-01	2.22000
2007-03-01	2.29500
2007-04-01	2.35000
2007-05-01	2.47000
2007-06-01	2.70000
2007-07-01	2.70750
2007-08-01	2.89667
2007-09-01	2.78500
2007-10-01	2.75333
2007-11-01	2.74500
2007-12-01	2.75667
2008-01-01	2.65333
2008-02-01	2.79667
2008-03-01	2.88500
2008-04-01	2.80833
2008-05-01	2.77750
2008-06-01	2.79000
2008-07-01	2.75583
2008-08-01	2.74500
2008-09-01	2.95500
2008-10-01	2.71833
2008-11-01	1.25500
2008-12-01	0.66167
2009-01-01	0.52667
2009-02-01	0.49500
2009-03-01	0.40333
2009-04-01	0.40333
2009-05-01	0.39833
2009-06-01	0.39500
2009-07-01	0.36000
2009-08-01	0.31667
2009-09-01	0.28833
2009-10-01	0.26183
2009-11-01	0.25000
2009-12-01	0.25167
2010-01-01	0.25000
2010-02-01	0.25000
2010-03-01	0.24667
2010-04-01	0.24583
2010-05-01	0.10833
2010-06-01	0.11167
2010-07-01	0.17167
2010-08-01	0.16500
2010-09-01	0.17833
2010-10-01	0.16833
2010-11-01	0.17167
2010-12-01	0.17000
2011-01-01	0.17000
2011-02-01	0.17000
2011-03-01	0.18000
2011-04-01	0.18500
2011-05-01	0.17583
2011-06-01	0.17500
2011-07-01	0.17500
2011-08-01	0.00500
2011-09-01	0.02333
2011-10-01	0.04333
2011-11-01	0.05167
2011-12-01	0.05167
2012-01-01	0.07000
2012-02-01	0.08667
2012-03-01	0.11000
2012-04-01	0.11167
2012-05-01	0.09750
2012-06-01	0.08700
2012-07-01	0.06000
2012-08-01	0.04600
2012-09-01	0.04400
2012-10-01	0.03200
2012-11-01	0.03000
2012-12-01	0.01200
2013-01-01	0.02200
2013-02-01	0.02200
2013-03-01	0.02200
2013-04-01	0.02000
2013-05-01	0.01600
2013-06-01	0.01900
2013-07-01	0.01800
2013-08-01	0.01800
2013-09-01	0.02200
2013-10-01	0.01900
2013-11-01	0.01500
2013-12-01	0.02300
2014-01-01	0.01800
2014-02-01	0.02200
2014-03-01	0.02200
2014-04-01	0.01700
2014-05-01	0.01200
2014-06-01	0.00800
2014-07-01	0.01800
2014-08-01	0.01800
2014-09-01	0.00600
2014-10-01	0.01500
2014-11-01	0.00100
2014-12-01	-0.06300
2015-01-01	-0.85400
2015-02-01	-0.85000
2015-03-01	-0.81400
2015-04-01	-0.79400
2015-05-01	-0.78800
2015-06-01	-0.78900
2015-07-01	-0.73900
2015-08-01	-0.72400
2015-09-01	-0.73300
2015-10-01	-0.73200
2015-11-01	-0.83200
2015-12-01	-0.75600
2016-01-01	-0.75700
2016-02-01	-0.80460
2016-03-01	-0.72920
2016-04-01	-0.72940
2016-05-01	-0.73520
2016-06-01	-0.77980
2016-07-01	-0.74760
2016-08-01	-0.73640
2016-09-01	-0.75000
2016-10-01	-0.73000
2016-11-01	-0.74900
2016-12-01	-0.72920
2017-01-01	-0.72860
2017-02-01	-0.72620
2017-03-01	-0.72960
2017-04-01	-0.73000
2017-05-01	-0.72960
2017-06-01	-0.73000
2017-07-01	-0.72560
2017-08-01	-0.72620
2017-09-01	-0.72600
2017-10-01	-0.72680
2017-11-01	-0.75200
2017-12-01	-0.74620
2018-01-01	-0.74500
2018-02-01	-0.74460
2018-03-01	-0.73540
2018-04-01	-0.72820
2018-05-01	-0.73480
2018-06-01	-0.73160
2018-07-01	-0.72780
2018-08-01	-0.72840
2018-09-01	-0.73580
2018-10-01	-0.74000