Month	Percent
1980-01-01	36.000000000
1980-02-01	43.000000000
1980-03-01	39.000000000
1980-04-01	34.000000000
1980-05-01	32.000000000
1980-06-01	26.000000000
1980-07-01	23.000000000
1980-08-01	26.000000000
1980-09-01	29.000000000
1980-10-01	31.000000000
1980-11-01	27.000000000
1980-12-01	34.000000000
1981-01-01	35.000000000
1981-02-01	36.000000000
1981-03-01	32.000000000
1981-04-01	31.000000000
1981-05-01	20.000000000
1981-06-01	21.000000000
1981-07-01	27.000000000
1981-08-01	25.000000000
1981-09-01	16.000000000
1981-10-01	15.000000000
1981-11-01	19.000000000
1981-12-01	22.000000000
1982-01-01	29.000000000
1982-02-01	26.000000000
1982-03-01	28.000000000
1982-04-01	31.000000000
1982-05-01	38.000000000
1982-06-01	35.000000000
1982-07-01	33.000000000
1982-08-01	38.000000000
1982-09-01	28.000000000
1982-10-01	20.000000000
1982-11-01	18.000000000
1982-12-01	25.000000000
1983-01-01	29.000000000
1983-02-01	26.000000000
1983-03-01	17.000000000
1983-04-01	16.000000000
1983-05-01	27.000000000
1983-06-01	34.000000000
1983-07-01	40.000000000
1983-08-01	36.000000000
1983-09-01	35.000000000
1983-10-01	32.000000000
1983-11-01	30.000000000
1983-12-01	32.000000000
1984-01-01	40.000000000
1984-02-01	36.000000000
1984-03-01	30.000000000
1984-04-01	27.000000000
1984-05-01	30.000000000
1984-06-01	31.000000000
1984-07-01	19.000000000
1984-08-01	27.000000000
1984-09-01	20.000000000
1984-10-01	17.000000000
1984-11-01	14.000000000
1984-12-01	17.000000000
1985-01-01	16.000000000
1985-02-01	26.000000000
1985-03-01	21.000000000
1985-04-01	16.000000000
1985-05-01	21.000000000
1985-06-01	19.000000000
1985-07-01	29.000000000
1985-08-01	26.000000000
1985-09-01	23.000000000
1985-10-01	20.000000000
1985-11-01	19.000000000
1985-12-01	38.000000000
1986-01-01	39.000000000
1986-02-01	36.000000000
1986-03-01	41.000000000
1986-04-01	38.000000000
1986-05-01	34.000000000
1986-06-01	41.000000000
1986-07-01	38.000000000
1986-08-01	34.000000000
1986-09-01	34.000000000
1986-10-01	33.000000000
1986-11-01	30.000000000
1986-12-01	33.000000000
1987-01-01	36.000000000
1987-02-01	30.000000000
1987-03-01	30.000000000
1987-04-01	37.000000000
1987-05-01	31.000000000
1987-06-01	35.000000000
1987-07-01	37.000000000
1987-08-01	39.000000000
1987-09-01	32.000000000
1987-10-01	33.000000000
1987-11-01	29.000000000
1987-12-01	34.000000000
1988-01-01	40.000000000
1988-02-01	37.000000000
1988-03-01	35.000000000
1988-04-01	34.000000000
1988-05-01	30.000000000
1988-06-01	28.000000000
1988-07-01	28.000000000
1988-08-01	23.000000000
1988-09-01	20.000000000
1988-10-01	19.000000000
1988-11-01	17.000000000
1988-12-01	20.000000000
1989-01-01	34.000000000
1989-02-01	37.000000000
1989-03-01	34.000000000
1989-04-01	31.000000000
1989-05-01	33.000000000
1989-06-01	25.000000000
1989-07-01	32.000000000
1989-08-01	16.000000000
1989-09-01	11.000000000
1989-10-01	9.000000000
1989-11-01	11.000000000
1989-12-01	22.000000000
1990-01-01	39.000000000
1990-02-01	32.000000000
1990-03-01	28.000000000
1990-04-01	29.000000000
1990-05-01	28.000000000
1990-06-01	28.000000000
1990-07-01	29.000000000
1990-08-01	33.000000000
1990-09-01	26.000000000
1990-10-01	19.000000000
1990-11-01	23.000000000
1990-12-01	18.000000000
1991-01-01	16.000000000
1991-02-01	22.000000000
1991-03-01	23.000000000
1991-04-01	24.000000000
1991-05-01	22.000000000
1991-06-01	23.000000000
1991-07-01	23.000000000
1991-08-01	21.000000000
1991-09-01	19.000000000
1991-10-01	11.000000000
1991-11-01	25.000000000
1991-12-01	22.000000000
1992-01-01	27.000000000
1992-02-01	29.000000000
1992-03-01	18.000000000
1992-04-01	13.000000000
1992-05-01	21.000000000
1992-06-01	30.000000000
1992-07-01	39.000000000
1992-08-01	35.000000000
1992-09-01	31.000000000
1992-10-01	29.000000000
1992-11-01	30.000000000
1992-12-01	31.000000000
1993-01-01	40.000000000
1993-02-01	37.000000000
1993-03-01	33.000000000
1993-04-01	24.000000000
1993-05-01	22.000000000
1993-06-01	25.000000000
1993-07-01	27.000000000
1993-08-01	23.000000000
1993-09-01	21.000000000
1993-10-01	24.000000000
1993-11-01	23.000000000
1993-12-01	20.000000000
1994-01-01	36.000000000
1994-02-01	35.000000000
1994-03-01	16.000000000
1994-04-01	20.000000000
1994-05-01	24.000000000
1994-06-01	25.000000000
1994-07-01	28.000000000
1994-08-01	29.000000000
1994-09-01	16.000000000
1994-10-01	21.000000000
1994-11-01	19.000000000
1994-12-01	25.000000000
1995-01-01	26.000000000
1995-02-01	28.000000000
1995-03-01	16.000000000
1995-04-01	13.000000000
1995-05-01	5.000000000
1995-06-01	4.000000000
1995-07-01	14.000000000
1995-08-01	11.000000000
1995-09-01	5.000000000
1995-10-01	3.000000000
1995-11-01	9.000000000
1995-12-01	2.000000000
1996-01-01	6.000000000
1996-02-01	2.000000000
1996-03-01	-23.000000000
1996-04-01	-12.000000000
1996-05-01	-9.000000000
1996-06-01	-13.986013990
1996-07-01	-7.200000000
1996-08-01	-8.378378378
1996-09-01	-13.294797690
1996-10-01	-5.882352941
1996-11-01	-0.903614458
1996-12-01	2.719033233
1997-01-01	13.411078720
1997-02-01	16.207951070
1997-03-01	8.959537572
1997-04-01	6.432748538
1997-05-01	1.000000000
1997-06-01	0.529100529
1997-07-01	7.000000000
1997-08-01	13.000000000
1997-09-01	11.000000000
1997-10-01	18.000000000
1997-11-01	18.000000000
1997-12-01	20.000000000
1998-01-01	30.000000000
1998-02-01	24.000000000
1998-03-01	8.000000000
1998-04-01	7.000000000
1998-05-01	-3.000000000
1998-06-01	14.000000000
1998-07-01	10.000000000
1998-08-01	-6.000000000
1998-09-01	-20.000000000
1998-10-01	-15.000000000
1998-11-01	-11.000000000
1998-12-01	-3.000000000
1999-01-01	-3.000000000
1999-02-01	-11.000000000
1999-03-01	1.000000000
1999-04-01	7.000000000
1999-05-01	4.000000000
1999-06-01	-1.000000000
1999-07-01	12.000000000
1999-08-01	21.000000000
1999-09-01	27.000000000
1999-10-01	24.000000000
1999-11-01	22.000000000
1999-12-01	38.000000000
2000-01-01	33.000000000
2000-02-01	36.000000000
2000-03-01	32.000000000
2000-04-01	22.000000000
2000-05-01	28.000000000
2000-06-01	34.000000000
2000-07-01	33.000000000
2000-08-01	34.000000000
2000-09-01	25.000000000
2000-10-01	24.000000000
2000-11-01	25.000000000
2000-12-01	32.000000000
2001-01-01	39.000000000
2001-02-01	28.000000000
2001-03-01	18.000000000
2001-04-01	14.000000000
2001-05-01	17.000000000
2001-06-01	12.000000000
2001-07-01	14.000000000
2001-08-01	13.000000000
2001-09-01	0.000000000
2001-10-01	10.000000000
2001-11-01	14.000000000
2001-12-01	19.000000000
2002-01-01	21.000000000
2002-02-01	12.000000000
2002-03-01	13.000000000
2002-04-01	14.000000000
2002-05-01	24.000000000
2002-06-01	23.000000000
2002-07-01	24.000000000
2002-08-01	28.000000000
2002-09-01	23.000000000
2002-10-01	31.000000000
2002-11-01	27.000000000
2002-12-01	34.000000000
2003-01-01	25.000000000
2003-02-01	23.000000000
2003-03-01	28.000000000
2003-04-01	33.000000000
2003-05-01	30.000000000
2003-06-01	31.000000000
2003-07-01	37.000000000
2003-08-01	34.000000000
2003-09-01	28.000000000
2003-10-01	27.000000000
2003-11-01	23.000000000
2003-12-01	38.000000000
2004-01-01	43.000000000
2004-02-01	38.000000000
2004-03-01	40.000000000
2004-04-01	33.000000000
2004-05-01	36.000000000
2004-06-01	30.000000000
2004-07-01	26.000000000
2004-08-01	24.000000000
2004-09-01	25.000000000
2004-10-01	25.000000000
2004-11-01	25.000000000
2004-12-01	27.000000000
2005-01-01	26.000000000
2005-02-01	32.000000000
2005-03-01	33.000000000
2005-04-01	30.000000000
2005-05-01	25.000000000
2005-06-01	21.000000000
2005-07-01	25.000000000
2005-08-01	32.000000000
2005-09-01	21.000000000
2005-10-01	20.000000000
2005-11-01	19.000000000
2005-12-01	26.000000000
2006-01-01	31.511254020
2006-02-01	36.507936510
2006-03-01	32.063492060
2006-04-01	37.617554860
2006-05-01	32.807570980
2006-06-01	37.614678900
2006-07-01	41.693811070
2006-08-01	39.875389410
2006-09-01	31.914893620
2006-10-01	29.268292680
2006-11-01	28.638497650
2006-12-01	30.827067670
2007-01-01	36.742424240
2007-02-01	35.191637630
2007-03-01	30.575539570
2007-04-01	25.468164790
2007-05-01	27.777777780
2007-06-01	34.250764530
2007-07-01	33.333333330
2007-08-01	32.743362830
2007-09-01	24.752475250
2007-10-01	23.452768730
2007-11-01	21.323529410
2007-12-01	22.549019610
2008-01-01	20.529801320
2008-02-01	14.539007090
2008-03-01	11.987381700
2008-04-01	23.591549300
2008-05-01	4.000000000
2008-06-01	10.000000000
2008-07-01	16.000000000
2008-08-01	13.000000000
2008-09-01	-1.000000000
2008-10-01	-14.000000000
2008-11-01	-9.000000000
2008-12-01	-6.000000000
2009-01-01	-8.000000000
2009-02-01	6.000000000
2009-03-01	4.000000000
2009-04-01	11.848341230
2009-05-01	6.696428571
2009-06-01	13.108614230
2009-07-01	18.382352940
2009-08-01	20.676691730
2009-09-01	13.114754100
2009-10-01	18.085106380
2009-11-01	26.696832580
2009-12-01	20.529801320
2010-01-01	29.096989970
2010-02-01	34.472049690
2010-03-01	31.208053690
2010-04-01	29.870129870
2010-05-01	27.573529410
2010-06-01	30.662020910
2010-07-01	34.000000000
2010-08-01	32.154340840
2010-09-01	23.437500000
2010-10-01	22.257053290
2010-11-01	17.666666670
2010-12-01	23.692307690
2011-01-01	33.333333330
2011-02-01	33.670033670
2011-03-01	35.294117650
2011-04-01	30.448717950
2011-05-01	33.666666670
2011-06-01	34.193548390
2011-07-01	32.362459550
2011-08-01	30.718954250
2011-09-01	26.490066230
2011-10-01	22.895622900
2011-11-01	24.126984130
2011-12-01	37.209302330
2012-01-01	34.343434340
2012-02-01	35.234899330
2012-03-01	38.047138050
2012-04-01	32.459016390
2012-05-01	33.552631580
2012-06-01	26.623376620
2012-07-01	21.212121210
2012-08-01	23.322683710
2012-09-01	21.337579620
2012-10-01	21.666666670
2012-11-01	20.265780730
2012-12-01	18.456375840
2013-01-01	24.414715720
2013-02-01	22.149837130
2013-03-01	19.867549670
2013-04-01	28.846153850
2013-05-01	31.229235880
2013-06-01	24.509803920
2013-07-01	26.351351350
2013-08-01	17.320261440
2013-09-01	22.222222220
2013-10-01	21.262458470
2013-11-01	20.198675500
2013-12-01	26.557377050
2014-01-01	35.294117650
2014-02-01	30.067567570
2014-03-01	31.292517010
2014-04-01	32.154340840
2014-05-01	35.737704920
2014-06-01	32.142857140
2014-07-01	32.203389830
2014-08-01	30.718954250
2014-09-01	25.249169440
2014-10-01	20.394736840
2014-11-01	9.933774834
2014-12-01	22.033898310
2015-01-01	26.732673270
2015-02-01	27.424749160
2015-03-01	24.838709680
2015-04-01	26.000000000
2015-05-01	29.765886290
2015-06-01	27.272727270
2015-07-01	15.000000000
2015-08-01	9.900990099
2015-09-01	20.064724920
2015-10-01	13.333333330
2015-11-01	17.607973420
2015-12-01	13.043478260
2016-01-01	19.732441470
2016-02-01	24.161073830
2016-03-01	26.845637580
2016-04-01	24.333333330
2016-05-01	30.564784050
2016-06-01	28.859060400
2016-07-01	19.933554820
2016-08-01	22.073578600
2016-09-01	21.682847900
2016-10-01	15.358361770
2016-11-01	12.000000000
2016-12-01	3.278688525
2017-01-01	16.949152540
2017-02-01	21.895424840
2017-03-01	20.779220780
2017-04-01	18.181818180
2017-05-01	15.654952080
2017-06-01	19.141914190
2017-07-01	16.611295680
2017-08-01	18.543046360
2017-09-01	13.333333330
2017-10-01	12.457912460
2017-11-01	10.135135140
2017-12-01	14.950166110
2018-01-01	21.682847900
2018-02-01	25.925925930
2018-03-01	31.962025320
2018-04-01	34.983498350
2018-05-01	34.113712370
2018-06-01	34.935897440
2018-07-01	37.248322150
2018-08-01	34.121621620
2018-09-01	27.884615380