Month	Percent
1977-01-01	2.000000000000000
1977-02-01	-2.133333333333210
1977-03-01	-5.866666666666790
1977-04-01	-10.000000000000000
1977-05-01	-8.351648351648340
1977-06-01	-6.648351648351660
1977-07-01	-5.000000000000000
1977-08-01	-6.684782608695640
1977-09-01	-8.369565217391270
1977-10-01	-10.000000000000000
1977-11-01	-10.336956521739100
1977-12-01	-10.663043478260900
1978-01-01	-11.000000000000000
1978-02-01	-14.100000000000600
1978-03-01	-16.900000000000100
1978-04-01	-20.000000000000000
1978-05-01	-18.351648351648500
1978-06-01	-16.648351648351500
1978-07-01	-15.000000000000000
1978-08-01	-14.326086956521700
1978-09-01	-13.652173913043500
1978-10-01	-13.000000000000000
1978-11-01	-10.304347826087000
1978-12-01	-7.695652173913010
1979-01-01	-5.000000000000000
1979-02-01	-4.655555555555570
1979-03-01	-4.344444444444430
1979-04-01	-4.000000000000000
1979-05-01	-3.670329670329670
1979-06-01	-3.329670329670330
1979-07-01	-3.000000000000000
1979-08-01	-3.000000000000000
1979-09-01	-3.000000000000000
1979-10-01	-3.000000000000000
1979-11-01	-0.978260869564949
1979-12-01	0.978260869565389
1980-01-01	3.000000000000000
1980-02-01	-1.769230769230660
1980-03-01	-6.230769230769310
1980-04-01	-11.000000000000000
1980-05-01	-11.659340659340700
1980-06-01	-12.340659340659300
1980-07-01	-13.000000000000000
1980-08-01	-14.684782608695600
1980-09-01	-16.369565217391300
1980-10-01	-18.000000000000000
1980-11-01	-16.315217391304500
1980-12-01	-14.684782608695900
1981-01-01	-13.000000000000000
1981-02-01	-14.722222222222200
1981-03-01	-16.277777777777400
1981-04-01	-18.000000000000000
1981-05-01	-18.000000000000000
1981-06-01	-18.000000000000000
1981-07-01	-18.000000000000000
1981-08-01	-18.336956521739100
1981-09-01	-18.673913043478300
1981-10-01	-19.000000000000000
1981-11-01	-19.336956521739100
1981-12-01	-19.663043478260900
1982-01-01	-20.000000000000000
1982-02-01	-23.444444444444300
1982-03-01	-26.555555555555700
1982-04-01	-30.000000000000000
1982-05-01	-30.000000000000000
1982-06-01	-30.000000000000000
1982-07-01	-30.000000000000000
1982-08-01	-31.347826086956400
1982-09-01	-32.695652173913100
1982-10-01	-34.000000000000000
1982-11-01	-32.315217391304400
1982-12-01	-30.684782608695600
1983-01-01	-29.000000000000000
1983-02-01	-30.377777777777700
1983-03-01	-31.622222222222300
1983-04-01	-33.000000000000000
1983-05-01	-33.329670329670300
1983-06-01	-33.670329670329700
1983-07-01	-34.000000000000000
1983-08-01	-34.336956521739100
1983-09-01	-34.673913043478200
1983-10-01	-35.000000000000000
1983-11-01	-34.663043478260900
1983-12-01	-34.336956521739200
1984-01-01	-34.000000000000000
1984-02-01	-35.362637362637300
1984-03-01	-36.637362637362700
1984-04-01	-38.000000000000000
1984-05-01	-37.340659340659300
1984-06-01	-36.659340659340700
1984-07-01	-36.000000000000000
1984-08-01	-36.000000000000000
1984-09-01	-36.000000000000000
1984-10-01	-36.000000000000000
1984-11-01	-35.663043478260900
1984-12-01	-35.336956521739100
1985-01-01	-35.000000000000000
1985-02-01	-34.311111111111100
1985-03-01	-33.688888888888900
1985-04-01	-33.000000000000000
1985-05-01	-32.340659340659300
1985-06-01	-31.659340659340700
1985-07-01	-31.000000000000000
1985-08-01	-28.304347826086600
1985-09-01	-25.608695652173800
1985-10-01	-23.000000000000000
1985-11-01	-21.989130434782600
1985-12-01	-21.010869565217400
1986-01-01	-20.000000000000000
1986-02-01	-19.655555555555600
1986-03-01	-19.344444444444400
1986-04-01	-19.000000000000000
1986-05-01	-17.021978021978000
1986-06-01	-14.978021978022000
1986-07-01	-13.000000000000000
1986-08-01	-11.315217391304400
1986-09-01	-9.630434782608740
1986-10-01	-8.000000000000000
1986-11-01	-3.282608695652580
1986-12-01	1.282608695651450
1987-01-01	-2.000000000000000
1987-02-01	0.000000000000000
1987-03-01	6.000000000000000
1987-04-01	7.000000000000000
1987-05-01	6.000000000000000
1987-06-01	7.000000000000000
1987-07-01	5.000000000000000
1987-08-01	4.000000000000000
1987-09-01	5.000000000000000
1987-10-01	3.000000000000000
1987-11-01	5.000000000000000
1987-12-01	3.000000000000000
1988-01-01	-5.000000000000000
1988-02-01	-7.000000000000000
1988-03-01	-4.000000000000000
1988-04-01	-3.000000000000000
1988-05-01	-3.000000000000000
1988-06-01	-5.000000000000000
1988-07-01	-9.000000000000000
1988-08-01	-5.000000000000000
1988-09-01	-8.000000000000000
1988-10-01	-4.000000000000000
1988-11-01	-6.000000000000000
1988-12-01	-8.000000000000000
1989-01-01	-5.000000000000000
1989-02-01	-6.000000000000000
1989-03-01	-4.000000000000000
1989-04-01	-7.000000000000000
1989-05-01	-2.000000000000000
1989-06-01	-10.000000000000000
1989-07-01	-9.000000000000000
1989-08-01	-11.000000000000000
1989-09-01	-6.000000000000000
1989-10-01	-7.000000000000000
1989-11-01	-6.000000000000000
1989-12-01	-13.000000000000000
1990-01-01	-18.000000000000000
1990-02-01	-16.000000000000000
1990-03-01	-12.000000000000000
1990-04-01	-11.000000000000000
1990-05-01	-14.000000000000000
1990-06-01	-12.000000000000000
1990-07-01	-15.000000000000000
1990-08-01	-14.000000000000000
1990-09-01	-14.000000000000000
1990-10-01	-13.000000000000000
1990-11-01	-10.000000000000000
1990-12-01	-15.000000000000000
1991-01-01	-15.000000000000000
1991-02-01	-21.000000000000000
1991-03-01	-19.000000000000000
1991-04-01	-22.000000000000000
1991-05-01	-22.000000000000000
1991-06-01	-20.000000000000000
1991-07-01	-24.000000000000000
1991-08-01	-26.000000000000000
1991-09-01	-21.000000000000000
1991-10-01	-19.000000000000000
1991-11-01	-20.000000000000000
1991-12-01	-23.000000000000000
1992-01-01	-26.000000000000000
1992-02-01	-23.000000000000000
1992-03-01	-25.000000000000000
1992-04-01	-24.000000000000000
1992-05-01	-24.000000000000000
1992-06-01	-29.000000000000000
1992-07-01	-29.000000000000000
1992-08-01	-28.000000000000000
1992-09-01	-33.000000000000000
1992-10-01	-39.000000000000000
1992-11-01	-39.000000000000000
1992-12-01	-38.000000000000000
1993-01-01	-48.000000000000000
1993-02-01	-46.000000000000000
1993-03-01	-52.000000000000000
1993-04-01	-50.000000000000000
1993-05-01	-49.000000000000000
1993-06-01	-52.000000000000000
1993-07-01	-55.000000000000000
1993-08-01	-48.000000000000000
1993-09-01	-50.000000000000000
1993-10-01	-46.000000000000000
1993-11-01	-39.000000000000000
1993-12-01	-36.000000000000000
1994-01-01	-36.000000000000000
1994-02-01	-28.000000000000000
1994-03-01	-21.000000000000000
1994-04-01	-20.000000000000000
1994-05-01	-22.000000000000000
1994-06-01	-16.000000000000000
1994-07-01	-13.000000000000000
1994-08-01	-16.000000000000000
1994-09-01	-10.000000000000000
1994-10-01	-4.000000000000000
1994-11-01	-5.000000000000000
1994-12-01	-8.000000000000000
1995-01-01	-12.000000000000000
1995-02-01	-10.000000000000000
1995-03-01	-12.000000000000000
1995-04-01	-15.000000000000000
1995-05-01	-18.000000000000000
1995-06-01	-15.000000000000000
1995-07-01	-10.000000000000000
1995-08-01	-13.000000000000000
1995-09-01	-13.000000000000000
1995-10-01	-15.000000000000000
1995-11-01	-22.000000000000000
1995-12-01	-27.000000000000000
1996-01-01	-26.000000000000000
1996-02-01	-26.000000000000000
1996-03-01	-25.000000000000000
1996-04-01	-24.000000000000000
1996-05-01	-22.000000000000000
1996-06-01	-17.000000000000000
1996-07-01	-16.000000000000000
1996-08-01	-20.000000000000000
1996-09-01	-17.000000000000000
1996-10-01	-14.000000000000000
1996-11-01	-15.000000000000000
1996-12-01	-12.000000000000000
1997-01-01	-12.000000000000000
1997-02-01	-16.000000000000000
1997-03-01	-15.000000000000000
1997-04-01	-6.000000000000000
1997-05-01	-6.000000000000000
1997-06-01	-6.000000000000000
1997-07-01	-4.000000000000000
1997-08-01	-7.000000000000000
1997-09-01	-6.000000000000000
1997-10-01	-3.000000000000000
1997-11-01	-3.000000000000000
1997-12-01	-3.000000000000000
1998-01-01	2.000000000000000
1998-02-01	4.000000000000000
1998-03-01	7.000000000000000
1998-04-01	1.000000000000000
1998-05-01	2.000000000000000
1998-06-01	-5.000000000000000
1998-07-01	-4.000000000000000
1998-08-01	-5.000000000000000
1998-09-01	-8.000000000000000
1998-10-01	-5.000000000000000
1998-11-01	-5.000000000000000
1998-12-01	-6.000000000000000
1999-01-01	-13.000000000000000
1999-02-01	-16.000000000000000
1999-03-01	-19.000000000000000
1999-04-01	-14.000000000000000
1999-05-01	-17.000000000000000
1999-06-01	-14.000000000000000
1999-07-01	-12.000000000000000
1999-08-01	-12.000000000000000
1999-09-01	-9.000000000000000
1999-10-01	-5.000000000000000
1999-11-01	-7.000000000000000
1999-12-01	-3.000000000000000
2000-01-01	-7.000000000000000
2000-02-01	-3.000000000000000
2000-03-01	-6.000000000000000
2000-04-01	-1.000000000000000
2000-05-01	1.000000000000000
2000-06-01	-3.000000000000000
2000-07-01	-4.000000000000000
2000-08-01	-4.000000000000000
2000-09-01	-5.000000000000000
2000-10-01	-5.000000000000000
2000-11-01	-2.000000000000000
2000-12-01	-6.000000000000000
2001-01-01	-10.000000000000000
2001-02-01	-13.000000000000000
2001-03-01	-14.000000000000000
2001-04-01	-14.000000000000000
2001-05-01	-17.000000000000000
2001-06-01	-15.000000000000000
2001-07-01	-16.000000000000000
2001-08-01	-14.000000000000000
2001-09-01	-18.000000000000000
2001-10-01	-21.000000000000000
2001-11-01	-20.000000000000000
2001-12-01	-15.000000000000000
2002-01-01	-19.000000000000000
2002-02-01	-23.000000000000000
2002-03-01	-19.000000000000000
2002-04-01	-17.000000000000000
2002-05-01	-20.000000000000000
2002-06-01	-16.000000000000000
2002-07-01	-24.000000000000000
2002-08-01	-26.000000000000000
2002-09-01	-26.000000000000000
2002-10-01	-25.000000000000000
2002-11-01	-27.000000000000000
2002-12-01	-27.000000000000000
2003-01-01	-33.000000000000000
2003-02-01	-33.000000000000000
2003-03-01	-35.000000000000000
2003-04-01	-42.000000000000000
2003-05-01	-36.000000000000000
2003-06-01	-34.000000000000000
2003-07-01	-41.000000000000000
2003-08-01	-37.000000000000000
2003-09-01	-30.000000000000000
2003-10-01	-29.000000000000000
2003-11-01	-28.000000000000000
2003-12-01	-33.000000000000000
2004-01-01	-29.000000000000000
2004-02-01	-28.000000000000000
2004-03-01	-26.000000000000000
2004-04-01	-24.000000000000000
2004-05-01	-18.400000000000000
2004-06-01	-9.200000000000000
2004-07-01	-5.900000000000000
2004-08-01	-3.300000000000000
2004-09-01	-25.300000000000000
2004-10-01	-12.100000000000000
2004-11-01	-12.000000000000000
2004-12-01	-21.600000000000000
2005-01-01	-8.800000000000000
2005-02-01	-15.200000000000000
2005-03-01	-17.900000000000000
2005-04-01	-19.700000000000000
2005-05-01	-20.300000000000000
2005-06-01	-24.400000000000000
2005-07-01	-23.200000000000000
2005-08-01	-23.500000000000000
2005-09-01	-14.300000000000000
2005-10-01	-12.900000000000000
2005-11-01	-12.500000000000000
2005-12-01	-14.400000000000000
2006-01-01	-15.900000000000000
2006-02-01	-9.200000000000000
2006-03-01	-14.200000000000000
2006-04-01	-19.100000000000000
2006-05-01	-14.300000000000000
2006-06-01	-11.300000000000000
2006-07-01	-2.600000000000000
2006-08-01	-11.800000000000000
2006-09-01	-5.700000000000000
2006-10-01	-10.000000000000000
2006-11-01	-5.300000000000000
2006-12-01	-9.000000000000000
2007-01-01	-10.200000000000000
2007-02-01	-1.900000000000000
2007-03-01	0.100000000000000
2007-04-01	2.700000000000000
2007-05-01	6.800000000000000
2007-06-01	1.000000000000000
2007-07-01	-5.200000000000000
2007-08-01	0.500000000000000
2007-09-01	4.400000000000000
2007-10-01	0.500000000000000
2007-11-01	-1.800000000000000
2007-12-01	6.100000000000000
2008-01-01	-18.400000000000000
2008-02-01	0.100000000000000
2008-03-01	0.500000000000000
2008-04-01	-1.200000000000000
2008-05-01	-16.900000000000000
2008-06-01	-25.300000000000000
2008-07-01	-11.800000000000000
2008-08-01	-9.400000000000000
2008-09-01	-15.200000000000000
2008-10-01	-33.300000000000000
2008-11-01	-50.000000000000000
2008-12-01	-52.300000000000000
2009-01-01	-59.600000000000000
2009-02-01	-65.300000000000000
2009-03-01	-61.900000000000000
2009-04-01	-66.900000000000000
2009-05-01	-58.200000000000000
2009-06-01	-61.600000000000000
2009-07-01	-63.400000000000000
2009-08-01	-56.600000000000000
2009-09-01	-50.600000000000000
2009-10-01	-47.900000000000000
2009-11-01	-47.500000000000000
2009-12-01	-43.900000000000000
2010-01-01	-38.700000000000000
2010-02-01	-41.400000000000000
2010-03-01	-40.800000000000000
2010-04-01	-34.600000000000000
2010-05-01	-34.900000000000000
2010-06-01	-34.900000000000000
2010-07-01	-34.800000000000000
2010-08-01	-26.400000000000000
2010-09-01	-22.600000000000000
2010-10-01	-28.000000000000000
2010-11-01	-18.500000000000000
2010-12-01	-26.600000000000000
2011-01-01	-20.600000000000000
2011-02-01	-23.400000000000000
2011-03-01	-26.900000000000000
2011-04-01	-24.600000000000000
2011-05-01	-28.500000000000000
2011-06-01	-30.200000000000000
2011-07-01	-19.700000000000000
2011-08-01	-41.400000000000000
2011-09-01	-44.400000000000000
2011-10-01	-39.500000000000000
2011-11-01	-41.000000000000000
2011-12-01	-40.000000000000000
2012-01-01	-38.700000000000000
2012-02-01	-41.400000000000000
2012-03-01	-42.700000000000000
2012-04-01	-43.100000000000000
2012-05-01	-45.800000000000000
2012-06-01	-42.300000000000000
2012-07-01	-51.200000000000000
2012-08-01	-47.800000000000000
2012-09-01	-51.700000000000000
2012-10-01	-48.300000000000000
2012-11-01	-48.700000000000000
2012-12-01	-43.200000000000000
2013-01-01	-42.100000000000000
2013-02-01	-43.900000000000000
2013-03-01	-41.800000000000000
2013-04-01	-41.100000000000000
2013-05-01	-38.100000000000000
2013-06-01	-38.300000000000000
2013-07-01	-40.700000000000000
2013-08-01	-34.600000000000000
2013-09-01	-36.200000000000000
2013-10-01	-31.300000000000000
2013-11-01	-27.800000000000000
2013-12-01	-24.000000000000000
2014-01-01	-25.100000000000000
2014-02-01	-25.100000000000000
2014-03-01	-21.000000000000000
2014-04-01	-21.300000000000000
2014-05-01	-20.100000000000000
2014-06-01	-22.600000000000000
2014-07-01	-20.200000000000000
2014-08-01	-15.400000000000000
2014-09-01	-16.600000000000000
2014-10-01	-13.900000000000000
2014-11-01	-12.100000000000000
2014-12-01	-10.600000000000000
2015-01-01	-10.400000000000000
2015-02-01	-10.300000000000000
2015-03-01	-8.900000000000000
2015-04-01	-7.600000000000000
2015-05-01	-5.800000000000000
2015-06-01	-6.800000000000000
2015-07-01	-7.700000000000000
2015-08-01	-9.800000000000000
2015-09-01	-9.000000000000000
2015-10-01	-9.300000000000000
2015-11-01	-9.400000000000000
2015-12-01	-10.100000000000000
2016-01-01	-5.100000000000000
2016-02-01	-8.000000000000000
2016-03-01	-10.000000000000000
2016-04-01	-10.300000000000000
2016-05-01	-8.100000000000000
2016-06-01	-6.100000000000000
2016-07-01	-9.000000000000000
2016-08-01	-13.900000000000000
2016-09-01	-9.300000000000000
2016-10-01	-6.800000000000000
2016-11-01	-6.800000000000000
2016-12-01	-5.100000000000000
2017-01-01	-3.800000000000000
2017-02-01	-2.900000000000000
2017-03-01	-3.400000000000000
2017-04-01	-0.500000000000000
2017-05-01	-2.200000000000000
2017-06-01	0.100000000000000
2017-07-01	-5.000000000000000
2017-08-01	-4.200000000000000
2017-09-01	-3.300000000000000
2017-10-01	-0.300000000000000
2017-11-01	-0.400000000000000
2017-12-01	0.200000000000000
2018-01-01	1.100000000000000
2018-02-01	-0.800000000000000
2018-03-01	0.000000000000000
2018-04-01	-4.100000000000000
2018-05-01	-4.000000000000000
2018-06-01	-4.100000000000000
2018-07-01	-6.500000000000000
2018-08-01	-4.600000000000000
2018-09-01	-8.600000000000000
2018-10-01	-9.000000000000000