Month	Percent
1980-01-01	-11.000000000
1980-02-01	-7.000000000
1980-03-01	-9.000000000
1980-04-01	-20.000000000
1980-05-01	-23.000000000
1980-06-01	-31.000000000
1980-07-01	-36.000000000
1980-08-01	-34.000000000
1980-09-01	-30.000000000
1980-10-01	-17.000000000
1980-11-01	-15.000000000
1980-12-01	-28.000000000
1981-01-01	-27.000000000
1981-02-01	-19.000000000
1981-03-01	-21.000000000
1981-04-01	-24.000000000
1981-05-01	-29.000000000
1981-06-01	-34.000000000
1981-07-01	-31.000000000
1981-08-01	-35.000000000
1981-09-01	-26.000000000
1981-10-01	-30.000000000
1981-11-01	-21.000000000
1981-12-01	-33.000000000
1982-01-01	-35.000000000
1982-02-01	-24.000000000
1982-03-01	-23.000000000
1982-04-01	-26.000000000
1982-05-01	-30.000000000
1982-06-01	-33.000000000
1982-07-01	-30.000000000
1982-08-01	-30.000000000
1982-09-01	-33.000000000
1982-10-01	-30.000000000
1982-11-01	-34.000000000
1982-12-01	-44.000000000
1983-01-01	-37.000000000
1983-02-01	-44.000000000
1983-03-01	-47.000000000
1983-04-01	-50.000000000
1983-05-01	-50.000000000
1983-06-01	-47.000000000
1983-07-01	-40.000000000
1983-08-01	-32.000000000
1983-09-01	-23.000000000
1983-10-01	-13.000000000
1983-11-01	-9.000000000
1983-12-01	-23.000000000
1984-01-01	-17.000000000
1984-02-01	-9.000000000
1984-03-01	-11.000000000
1984-04-01	-29.000000000
1984-05-01	-14.000000000
1984-06-01	-22.000000000
1984-07-01	-22.000000000
1984-08-01	-12.000000000
1984-09-01	-13.000000000
1984-10-01	-8.000000000
1984-11-01	-8.000000000
1984-12-01	-17.000000000
1985-01-01	-20.000000000
1985-02-01	-8.000000000
1985-03-01	-20.000000000
1985-04-01	-20.000000000
1985-05-01	-21.000000000
1985-06-01	-29.000000000
1985-07-01	-21.000000000
1985-08-01	-18.000000000
1985-09-01	-20.000000000
1985-10-01	-17.000000000
1985-11-01	-13.000000000
1985-12-01	-21.000000000
1986-01-01	-11.000000000
1986-02-01	-11.000000000
1986-03-01	-11.000000000
1986-04-01	-2.000000000
1986-05-01	-14.000000000
1986-06-01	-15.000000000
1986-07-01	-8.000000000
1986-08-01	-10.000000000
1986-09-01	-7.000000000
1986-10-01	-2.000000000
1986-11-01	2.000000000
1986-12-01	-5.000000000
1987-01-01	-2.000000000
1987-02-01	-4.000000000
1987-03-01	-5.000000000
1987-04-01	-5.000000000
1987-05-01	-6.000000000
1987-06-01	-6.000000000
1987-07-01	-5.000000000
1987-08-01	-3.000000000
1987-09-01	3.000000000
1987-10-01	3.000000000
1987-11-01	10.000000000
1987-12-01	-5.000000000
1988-01-01	-8.000000000
1988-02-01	0.000000000
1988-03-01	-4.000000000
1988-04-01	-11.000000000
1988-05-01	-15.000000000
1988-06-01	-13.000000000
1988-07-01	-21.000000000
1988-08-01	-19.000000000
1988-09-01	-26.000000000
1988-10-01	-32.000000000
1988-11-01	-23.000000000
1988-12-01	-25.000000000
1989-01-01	-29.000000000
1989-02-01	-28.000000000
1989-03-01	-25.000000000
1989-04-01	-24.000000000
1989-05-01	-32.000000000
1989-06-01	-33.000000000
1989-07-01	-28.000000000
1989-08-01	-26.000000000
1989-09-01	-32.000000000
1989-10-01	-24.000000000
1989-11-01	-14.000000000
1989-12-01	-21.000000000
1990-01-01	-22.000000000
1990-02-01	-15.000000000
1990-03-01	-18.000000000
1990-04-01	-25.000000000
1990-05-01	-13.000000000
1990-06-01	-25.000000000
1990-07-01	-31.000000000
1990-08-01	-17.000000000
1990-09-01	-22.000000000
1990-10-01	-14.000000000
1990-11-01	-6.000000000
1990-12-01	-21.000000000
1991-01-01	-28.000000000
1991-02-01	-33.000000000
1991-03-01	-35.000000000
1991-04-01	-20.000000000
1991-05-01	-30.000000000
1991-06-01	-38.000000000
1991-07-01	-33.000000000
1991-08-01	-36.000000000
1991-09-01	-29.000000000
1991-10-01	-18.000000000
1991-11-01	-16.000000000
1991-12-01	-24.000000000
1992-01-01	-21.000000000
1992-02-01	-17.000000000
1992-03-01	-11.000000000
1992-04-01	-10.000000000
1992-05-01	-8.000000000
1992-06-01	-11.000000000
1992-07-01	0.000000000
1992-08-01	-2.000000000
1992-09-01	2.000000000
1992-10-01	0.000000000
1992-11-01	0.000000000
1992-12-01	-9.000000000
1993-01-01	-9.000000000
1993-02-01	-5.000000000
1993-03-01	2.000000000
1993-04-01	-13.000000000
1993-05-01	-27.000000000
1993-06-01	-26.000000000
1993-07-01	-27.000000000
1993-08-01	-25.000000000
1993-09-01	-16.000000000
1993-10-01	-13.000000000
1993-11-01	-9.000000000
1993-12-01	-22.000000000
1994-01-01	-17.000000000
1994-02-01	-12.000000000
1994-03-01	-12.000000000
1994-04-01	-14.000000000
1994-05-01	-17.000000000
1994-06-01	-22.000000000
1994-07-01	-25.000000000
1994-08-01	-18.000000000
1994-09-01	-11.000000000
1994-10-01	-7.000000000
1994-11-01	-9.000000000
1994-12-01	-14.000000000
1995-01-01	-20.000000000
1995-02-01	-19.000000000
1995-03-01	-20.000000000
1995-04-01	-36.000000000
1995-05-01	-36.000000000
1995-06-01	-43.000000000
1995-07-01	-41.000000000
1995-08-01	-35.000000000
1995-09-01	-35.000000000
1995-10-01	-32.000000000
1995-11-01	-29.000000000
1995-12-01	-42.000000000
1996-01-01	-37.000000000
1996-02-01	-38.000000000
1996-03-01	-47.000000000
1996-04-01	-52.000000000
1996-05-01	-50.000000000
1996-06-01	-58.079625290
1996-07-01	-56.216216220
1996-08-01	-50.134770890
1996-09-01	-47.383720930
1996-10-01	-44.213649850
1996-11-01	-43.243243240
1996-12-01	-45.565749240
1997-01-01	-39.233038350
1997-02-01	-41.486068110
1997-03-01	-47.536231880
1997-04-01	-40.294117650
1997-05-01	-45.000000000
1997-06-01	-53.333333330
1997-07-01	-41.000000000
1997-08-01	-44.000000000
1997-09-01	-32.000000000
1997-10-01	-23.000000000
1997-11-01	-19.000000000
1997-12-01	-24.000000000
1998-01-01	-24.000000000
1998-02-01	-24.000000000
1998-03-01	-23.000000000
1998-04-01	-37.000000000
1998-05-01	-50.000000000
1998-06-01	-55.000000000
1998-07-01	-52.000000000
1998-08-01	-58.000000000
1998-09-01	-57.000000000
1998-10-01	-57.000000000
1998-11-01	-58.000000000
1998-12-01	-64.000000000
1999-01-01	-64.000000000
1999-02-01	-67.000000000
1999-03-01	-72.000000000
1999-04-01	-72.000000000
1999-05-01	-69.000000000
1999-06-01	-69.000000000
1999-07-01	-61.000000000
1999-08-01	-52.000000000
1999-09-01	-37.000000000
1999-10-01	-41.000000000
1999-11-01	-30.000000000
1999-12-01	-41.000000000
2000-01-01	-39.000000000
2000-02-01	-33.000000000
2000-03-01	-27.000000000
2000-04-01	-28.000000000
2000-05-01	-30.000000000
2000-06-01	-33.000000000
2000-07-01	-29.000000000
2000-08-01	-14.000000000
2000-09-01	-20.000000000
2000-10-01	-17.000000000
2000-11-01	-14.000000000
2000-12-01	-18.000000000
2001-01-01	-24.000000000
2001-02-01	-24.000000000
2001-03-01	-25.000000000
2001-04-01	-39.000000000
2001-05-01	-39.000000000
2001-06-01	-48.000000000
2001-07-01	-47.000000000
2001-08-01	-45.000000000
2001-09-01	-47.000000000
2001-10-01	-30.000000000
2001-11-01	-28.000000000
2001-12-01	-36.000000000
2002-01-01	-28.000000000
2002-02-01	-40.000000000
2002-03-01	-42.000000000
2002-04-01	-31.000000000
2002-05-01	-37.000000000
2002-06-01	-41.000000000
2002-07-01	-36.000000000
2002-08-01	-31.000000000
2002-09-01	-28.000000000
2002-10-01	-22.000000000
2002-11-01	-27.000000000
2002-12-01	-34.000000000
2003-01-01	-31.000000000
2003-02-01	-41.000000000
2003-03-01	-34.000000000
2003-04-01	-30.000000000
2003-05-01	-31.000000000
2003-06-01	-36.000000000
2003-07-01	-22.000000000
2003-08-01	-23.000000000
2003-09-01	-12.000000000
2003-10-01	-7.000000000
2003-11-01	-12.000000000
2003-12-01	-10.000000000
2004-01-01	-15.000000000
2004-02-01	-6.000000000
2004-03-01	-4.000000000
2004-04-01	-12.000000000
2004-05-01	-16.000000000
2004-06-01	-21.000000000
2004-07-01	-20.000000000
2004-08-01	-15.000000000
2004-09-01	-10.000000000
2004-10-01	-11.000000000
2004-11-01	-4.000000000
2004-12-01	-12.000000000
2005-01-01	-24.000000000
2005-02-01	-19.000000000
2005-03-01	-14.000000000
2005-04-01	-15.000000000
2005-05-01	-29.000000000
2005-06-01	-22.000000000
2005-07-01	-25.000000000
2005-08-01	-12.000000000
2005-09-01	-10.000000000
2005-10-01	-9.000000000
2005-11-01	2.000000000
2005-12-01	-11.000000000
2006-01-01	-11.726384360
2006-02-01	-4.761904762
2006-03-01	0.630914826
2006-04-01	-4.062500000
2006-05-01	-1.923076923
2006-06-01	0.615384615
2006-07-01	-0.645161290
2006-08-01	12.461059190
2006-09-01	12.462006080
2006-10-01	13.622291020
2006-11-01	16.666666670
2006-12-01	1.865671642
2007-01-01	3.396226415
2007-02-01	2.097902098
2007-03-01	2.090592334
2007-04-01	-6.985294118
2007-05-01	-9.855072464
2007-06-01	-6.990881459
2007-07-01	-7.419354839
2007-08-01	-0.591715976
2007-09-01	-4.934210526
2007-10-01	-0.653594771
2007-11-01	4.395604396
2007-12-01	-6.188925081
2008-01-01	-18.750000000
2008-02-01	-18.085106380
2008-03-01	-29.874213840
2008-04-01	-28.472222220
2008-05-01	-37.000000000
2008-06-01	-39.000000000
2008-07-01	-32.000000000
2008-08-01	-39.000000000
2008-09-01	-33.000000000
2008-10-01	-39.000000000
2008-11-01	-33.000000000
2008-12-01	-39.000000000
2009-01-01	-50.000000000
2009-02-01	-45.000000000
2009-03-01	-46.000000000
2009-04-01	-56.310679610
2009-05-01	-48.214285710
2009-06-01	-51.685393260
2009-07-01	-41.666666670
2009-08-01	-42.585551330
2009-09-01	-41.639344260
2009-10-01	-28.169014080
2009-11-01	-29.864253390
2009-12-01	-35.690235690
2010-01-01	-29.508196720
2010-02-01	-28.660436140
2010-03-01	-22.333333330
2010-04-01	-28.571428570
2010-05-01	-32.222222220
2010-06-01	-28.571428570
2010-07-01	-28.000000000
2010-08-01	-18.152866240
2010-09-01	-18.380062310
2010-10-01	-17.610062890
2010-11-01	-10.561056110
2010-12-01	-17.230769230
2011-01-01	-18.581081080
2011-02-01	-11.705685620
2011-03-01	-10.231023100
2011-04-01	-17.363344050
2011-05-01	-13.953488370
2011-06-01	-21.612903230
2011-07-01	-21.359223300
2011-08-01	-11.363636360
2011-09-01	-11.627906980
2011-10-01	-10.333333330
2011-11-01	-1.261829653
2011-12-01	-13.531353140
2012-01-01	-14.666666670
2012-02-01	-12.080536910
2012-03-01	-17.940199340
2012-04-01	-20.900321540
2012-05-01	-20.930232560
2012-06-01	-26.774193550
2012-07-01	-25.082508250
2012-08-01	-21.518987340
2012-09-01	-21.974522290
2012-10-01	-19.471947190
2012-11-01	-15.562913910
2012-12-01	-23.076923080
2013-01-01	-29.966329970
2013-02-01	-31.290322580
2013-03-01	-38.562091500
2013-04-01	-30.254777070
2013-05-01	-33.887043190
2013-06-01	-37.216828480
2013-07-01	-31.081081080
2013-08-01	-31.045751630
2013-09-01	-22.259136210
2013-10-01	-17.049180330
2013-11-01	-15.409836070
2013-12-01	-21.290322580
2014-01-01	-27.027027030
2014-02-01	-22.742474920
2014-03-01	-18.456375840
2014-04-01	-12.861736330
2014-05-01	-20.195439740
2014-06-01	-28.478964400
2014-07-01	-16.161616160
2014-08-01	-16.339869280
2014-09-01	-7.590759076
2014-10-01	-8.469055375
2014-11-01	-6.270627063
2014-12-01	-17.171717170
2015-01-01	-27.777777780
2015-02-01	-20.132013200
2015-03-01	-18.589743590
2015-04-01	-23.333333330
2015-05-01	-20.666666670
2015-06-01	-25.333333330
2015-07-01	-18.874172190
2015-08-01	-16.013071900
2015-09-01	-6.774193548
2015-10-01	-3.986710963
2015-11-01	-5.555555556
2015-12-01	-12.751677850
2016-01-01	-22.483221480
2016-02-01	-8.783783784
2016-03-01	-20.066889630
2016-04-01	-13.758389260
2016-05-01	-15.436241610
2016-06-01	-18.272425250
2016-07-01	-15.894039740
2016-08-01	-10.631229240
2016-09-01	-16.828478960
2016-10-01	-18.333333330
2016-11-01	-10.333333330
2016-12-01	-17.207792210
2017-01-01	-24.832214770
2017-02-01	-25.081433220
2017-03-01	-25.974025970
2017-04-01	-39.032258060
2017-05-01	-32.698412700
2017-06-01	-36.633663370
2017-07-01	-36.807817590
2017-08-01	-24.918032790
2017-09-01	-31.329113920
2017-10-01	-26.086956520
2017-11-01	-20.134228190
2017-12-01	-30.564784050
2018-01-01	-33.012820510
2018-02-01	-24.916943520
2018-03-01	-27.760252370
2018-04-01	-22.368421050
2018-05-01	-25.490196080
2018-06-01	-27.476038340
2018-07-01	-24.333333330
2018-08-01	-19.333333330
2018-09-01	-15.822784810