Month	Percent
1998-01-01	7.46209707
1998-02-01	7.83869264
1998-03-01	7.39767006
1998-04-01	7.30794441
1998-05-01	7.46126946
1998-06-01	7.38203625
1998-07-01	7.56343668
1998-08-01	7.29061740
1998-09-01	7.57991756
1998-10-01	7.51809635
1998-11-01	7.63729799
1998-12-01	7.56725503
1999-01-01	7.57975540
1999-02-01	7.81310966
1999-03-01	7.91728891
1999-04-01	7.95741554
1999-05-01	8.05090662
1999-06-01	8.48725536
1999-07-01	8.47020984
1999-08-01	8.47007064
1999-09-01	9.16989658
1999-10-01	8.96850637
1999-11-01	9.53020407
1999-12-01	9.69958534
2000-01-01	10.55025400
2000-02-01	10.61823365
2000-03-01	10.80252253
2000-04-01	10.80426148
2000-05-01	11.03994555
2000-06-01	11.09290653
2000-07-01	11.31476866
2000-08-01	11.30245106
2000-09-01	11.30849376
2000-10-01	11.34534287
2000-11-01	11.76550840
2000-12-01	11.67873464
2001-01-01	11.57436452
2001-02-01	11.31839862
2001-03-01	11.06113478
2001-04-01	11.75359011
2001-05-01	11.08164007
2001-06-01	11.10107912
2001-07-01	10.85372532
2001-08-01	10.93312336
2001-09-01	10.82509165
2001-10-01	10.55252878
2001-11-01	9.98826659
2001-12-01	9.92976041
2002-01-01	9.51101251
2002-02-01	9.46303360
2002-03-01	9.29756331
2002-04-01	9.05956509
2002-05-01	8.50586200
2002-06-01	8.31050445
2002-07-01	8.11671654
2002-08-01	7.51169523
2002-09-01	6.89909968
2002-10-01	6.51482964
2002-11-01	6.03990845
2002-12-01	5.83194922
2003-01-01	5.73772464
2003-02-01	5.25125599
2003-03-01	5.04119357
2003-04-01	4.68860312
2003-05-01	4.86603411
2003-06-01	5.08984296
2003-07-01	5.02666968
2003-08-01	4.86985500
2003-09-01	4.44551138
2003-10-01	4.59036207
2003-11-01	4.79337437
2003-12-01	4.74982707
2004-01-01	5.06560133
2004-02-01	5.21465198
2004-03-01	4.97396366
2004-04-01	5.21382813
2004-05-01	5.47278222
2004-06-01	5.91717782
2004-07-01	6.23624372
2004-08-01	6.46559418
2004-09-01	6.67254951
2004-10-01	7.31832353
2004-11-01	6.88633577
2004-12-01	7.65499197
2005-01-01	7.06773515
2005-02-01	7.88773109
2005-03-01	8.74379032
2005-04-01	8.74156723
2005-05-01	8.81110113
2005-06-01	9.04949310
2005-07-01	8.98865265
2005-08-01	9.40391382
2005-09-01	9.39775464
2005-10-01	9.75234431
2005-11-01	9.49341564
2005-12-01	9.12419024
2006-01-01	8.15600275
2006-02-01	12.26782469
2006-03-01	11.73357087
2006-04-01	12.22342078
2006-05-01	12.38706144
2006-06-01	12.28837190
2006-07-01	12.58410580
2006-08-01	13.10139896
2006-09-01	13.26435105
2006-10-01	14.66263619
2006-11-01	14.97996223
2006-12-01	12.19083720
2007-01-01	12.58342712
2007-02-01	12.89808619
2007-03-01	13.37418702
2007-04-01	13.19804407
2007-05-01	13.44081220
2007-06-01	13.73702686
2007-07-01	14.23600900
2007-08-01	14.05342385
2007-09-01	14.14103672
2007-10-01	14.06840880
2007-11-01	14.52348569
2007-12-01	14.01564306
2008-01-01	13.53451746
2008-02-01	14.23082789
2008-03-01	13.77240667
2008-04-01	13.62953399
2008-05-01	12.58013905
2008-06-01	11.14676278
2008-07-01	11.57354926
2008-08-01	13.95236515
2008-09-01	13.39531040
2008-10-01	16.25165953
2008-11-01	16.95769434
2008-12-01	14.10753230
2009-01-01	13.47943456
2009-02-01	15.41542748
2009-03-01	12.56000000
2009-04-01	10.45000000
2009-05-01	6.43000000
2009-06-01	6.69000000
2009-07-01	6.80000000
2009-08-01	7.59000000
2009-09-01	7.51000000
2009-10-01	8.48000000
2009-11-01	8.16000000
2009-12-01	7.63000000
2010-01-01	7.79000000
2010-02-01	8.37000000
2010-03-01	6.96000000
2010-04-01	6.16000000
2010-05-01	5.77000000
2010-06-01	4.59000000
2010-07-01	4.52000000
2010-08-01	4.30000000
2010-09-01	4.53000000
2010-10-01	4.73000000
2010-11-01	4.01000000
2010-12-01	2.77000000
2011-01-01	2.54000000
2011-02-01	3.10000000
2011-03-01	3.32000000
2011-04-01	3.38000000
2011-05-01	3.21000000
2011-06-01	3.49000000
2011-07-01	3.65000000
2011-08-01	3.35000000
2011-09-01	4.08000000
2011-10-01	4.19000000
2011-11-01	4.06000000
2011-12-01	4.25000000
2012-01-01	4.18000000
2012-02-01	3.55000000
2012-03-01	3.82000000
2012-04-01	3.83000000
2012-05-01	3.74000000
2012-06-01	3.20000000
2012-07-01	3.18000000
2012-08-01	2.82000000
2012-09-01	3.00000000
2012-10-01	2.88000000
2012-11-01	3.47000000
2012-12-01	3.77000000
2013-01-01	4.05000000
2013-02-01	4.74000000
2013-03-01	4.68000000
2013-04-01	4.19000000
2013-05-01	3.16000000
2013-06-01	3.22000000
2013-07-01	3.32000000
2013-08-01	3.70000000
2013-09-01	4.42000000
2013-10-01	4.38000000
2013-11-01	4.53000000
2013-12-01	4.53000000
2014-01-01	4.25000000
2014-02-01	4.28000000
2014-03-01	4.25000000
2014-04-01	4.25000000
2014-05-01	4.47000000
2014-06-01	4.94000000
2014-07-01	4.92000000
2014-08-01	4.77000000
2014-09-01	4.61000000
2014-10-01	4.73000000
2014-11-01	4.64000000
2014-12-01	4.28000000
2015-01-01	4.65000000
2015-02-01	4.43000000
2015-03-01	4.56000000
2015-04-01	3.56000000
2015-05-01	3.54000000
2015-06-01	3.65000000
2015-07-01	3.70000000
2015-08-01	3.75000000
2015-09-01	3.73000000
2015-10-01	3.58000000
2015-11-01	3.51000000
2015-12-01	3.11000000
2016-01-01	2.90000000
2016-02-01	2.78000000
2016-03-01	2.49000000
2016-04-01	2.60000000
2016-05-01	2.60000000
2016-06-01	2.91000000
2016-07-01	2.80000000
2016-08-01	2.40000000
2016-09-01	2.38000000
2016-10-01	2.05000000
2016-11-01	1.63000000
2016-12-01	0.85000000
2017-01-01	0.67000000
2017-02-01	0.66000000
2017-03-01	0.67000000
2017-04-01	0.68000000
2017-05-01	2.69000000
2017-06-01	4.15000000
2017-07-01	4.32000000
2017-08-01	4.46000000
2017-09-01	4.58000000
2017-10-01	4.37000000
2017-11-01	4.22000000
2017-12-01	4.22000000
2018-01-01	4.21000000
2018-02-01	4.30000000
2018-03-01	4.28000000
2018-04-01	4.29000000
2018-05-01	4.21000000
2018-06-01	4.37000000
2018-07-01	4.40000000
2018-08-01	4.40000000
2018-09-01	4.52000000