Month	Percent
1978-01-31	6.2586
1978-02-28	6.8675
1978-03-31	6.8186
1978-04-30	7.6215
1978-05-31	9.2952
1978-06-30	10.0411
1978-07-31	10.1814
1978-08-31	9.4489
1978-09-30	9.3643
1978-10-31	10.5668
1978-11-30	12.0652
1978-12-31	12.355
1979-01-31	12.6857
1979-02-28	13.3183
1979-03-31	12.0455
1979-04-30	11.69
1979-05-31	11.8152
1979-06-30	13.119
1979-07-31	13.9811
1979-08-31	14.1189
1979-09-30	14.167
1979-10-31	14.2146
1979-11-30	16.2455
1979-12-31	16.8139
1980-01-31	17.155
1980-02-29	17.774
1980-03-31	18.1074
1980-04-30	17.6373
1980-05-31	17.0435
1980-06-30	16.769
1980-07-31	15.8802
1980-08-31	16.5278
1980-09-30	15.9991
1980-10-31	15.9824
1980-11-30	15.8368
1980-12-31	14.7293
1981-01-31	14.279
1981-02-28	13.0368
1981-03-31	12.652
1981-04-30	12.3325
1981-05-31	12.4039
1981-06-30	12.6634
1981-07-31	13.7868
1981-08-31	14.1765
1981-09-30	14.7909
1981-10-31	16.3257
1981-11-30	15.0583
1981-12-31	15.4405
1982-01-31	15.133
1982-02-28	14.4793
1982-03-31	13.5696
1982-04-30	13.7688
1982-05-31	13.3468
1982-06-30	13
1982-07-31	12.3677
1982-08-31	11.1081
1982-09-30	10.8809
1982-10-31	9.7871
1982-11-30	9.3934
1982-12-31	10.6188
1983-01-31	11.209
1983-02-28	11.3338
1983-03-31	10.9757
1983-04-30	10.2616
1983-05-31	10.2593
1983-06-30	9.9384
1983-07-31	9.8919
1983-08-31	9.8666
1983-09-30	9.6902
1983-10-31	9.38
1983-11-30	9.3027
1983-12-31	9.4245
1984-01-31	9.446
1984-02-29	9.38
1984-03-31	8.9525
1984-04-30	8.8803
1984-05-31	9.4002
1984-06-30	9.451
1984-07-31	11.5145
1984-08-31	11.0748
1984-09-30	10.8323
1984-10-31	10.6659
1984-11-30	9.9057
1984-12-31	9.8234
1985-01-31	11.6798
1985-02-28	13.783
1985-03-31	13.6295
1985-04-30	12.764
1985-05-31	12.6624
1985-06-30	12.4373
1985-07-31	12.0357
1985-08-31	11.4952
1985-09-30	11.5488
1985-10-31	11.5485
1985-11-30	11.5705
1985-12-31	11.764
1986-01-31	12.8291
1986-02-28	12.6713
1986-03-31	11.7821
1986-04-30	10.5014
1986-05-31	10.2125
1986-06-30	9.7705
1986-07-31	9.9659
1986-08-31	9.8595
1986-09-30	10.133
1986-10-31	11.09
1986-11-30	11.1915
1986-12-31	11.3114
1987-01-31	11.0452
1987-02-28	10.824
1987-03-31	9.9498
1987-04-30	9.7808
1987-05-31	8.8155
1987-06-30	8.8923
1987-07-31	9.1926
1987-08-31	10.045
1987-09-30	10.1609
1987-10-31	9.9582
1987-11-30	8.9426
1987-12-31	8.7688
1988-01-31	8.9305
1988-02-29	9.265
1988-03-31	8.8852
1988-04-30	8.3032
1988-05-31	8.0343
1988-06-30	8.9323
1988-07-31	10.5452
1988-08-31	11.3984
1988-09-30	12.1543
1988-10-31	12.0198
1988-11-30	12.3282
1988-12-31	13.1508
1989-01-31	13.1195
1989-02-28	13.0208
1989-03-31	13.0281
1989-04-30	13.129
1989-05-31	13.1371
1989-06-30	14.1548
1989-07-31	13.9044
1989-08-31	13.8541
1989-09-30	14.0248
1989-10-31	15.0241
1989-11-30	15.11
1989-12-31	15.1224
1990-01-31	15.1605
1990-02-28	15.1103
1990-03-31	15.2859
1990-04-30	15.2129
1990-05-31	15.1512
1990-06-30	14.9702
1990-07-31	14.9502
1990-08-31	15.0016
1990-09-30	14.9133
1990-10-31	14.0259
1990-11-30	13.6352
1990-12-31	13.8084
1991-01-31	13.9689
1991-02-28	13.2535
1991-03-31	12.4013
1991-04-30	11.9483
1991-05-31	11.5255
1991-06-30	11.2428
1991-07-31	11.0937
1991-08-31	10.8948
1991-09-30	10.2867
1991-10-31	10.3974
1991-11-30	10.476
1991-12-31	10.776
1992-01-31	10.6457
1992-02-29	10.368
1992-03-31	10.618
1992-04-30	10.6185
1992-05-31	10.0576
1992-06-30	9.9839
1992-07-31	10.1483
1992-08-31	10.345
1992-09-30	9.9893
1992-10-31	8.323
1992-11-30	7.2079
1992-12-31	7.1536
1993-01-31	6.944
1993-02-28	6.1603
1993-03-31	5.9781
1993-04-30	5.9753
1993-05-31	5.9708
1993-06-30	5.8861
1993-07-31	5.9511
1993-08-31	5.8429
1993-09-30	5.9132
1993-10-31	5.7602
1993-11-30	5.5707
1993-12-31	5.3319
1994-01-31	5.3919
1994-02-28	5.218
1994-03-31	5.1643
1994-04-30	5.2095
1994-05-31	5.1665
1994-06-30	5.1345
1994-07-31	5.1999
1994-08-31	5.5277
1994-09-30	5.6691
1994-10-31	5.9148
1994-11-30	6.0604
1994-12-31	6.3736
1995-01-31	6.5633
1995-02-28	6.7456
1995-03-31	6.6617
1995-04-30	6.6694
1995-05-31	6.721
1995-06-30	6.6373
1995-07-31	6.7974
1995-08-31	6.7925
1995-09-30	6.7207
1995-10-31	6.733
1995-11-30	6.6418
1995-12-31	6.485
1996-01-31	6.3636
1996-02-29	6.1643
1996-03-31	6.0543
1996-04-30	6.003
1996-05-31	6.0243
1996-06-30	5.849
1996-07-31	5.7317
1996-08-31	5.7457
1996-09-30	5.7726
1996-10-31	5.938
1996-11-30	6.3024
1996-12-31	6.353
1997-01-31	6.323
1997-02-28	6.1938
1997-03-31	6.2003
1997-04-30	6.3784
1997-05-31	6.446
1997-06-30	6.6595
1997-07-31	6.9578
1997-08-31	7.154
1997-09-30	7.2119
1997-10-31	7.2618
1997-11-30	7.536
1997-12-31	7.6183
1998-01-31	7.4762
1998-02-28	7.4595
1998-03-31	7.4774
1998-04-30	7.437
1998-05-31	7.4069
1998-06-30	7.6258
1998-07-31	7.7088
1998-08-31	7.6558
1998-09-30	7.3825
1998-10-31	7.1352
1998-11-30	6.8881
1998-12-31	6.3817
1999-01-31	5.7985
1999-02-28	5.4328
1999-03-31	5.303
1999-04-30	5.2313
1999-05-31	5.2482
1999-06-30	5.1234
1999-07-31	5.0657
1999-08-31	5.1795
1999-09-30	5.3168
1999-10-31	5.9388
1999-11-30	5.7824
1999-12-31	5.9656
2000-01-31	6.0578
2000-02-29	6.1492
2000-03-31	6.1458
2000-04-30	6.2129
2000-05-31	6.2289
2000-06-30	6.1423
2000-07-31	6.1146
2000-08-31	6.1365
2000-09-30	6.1191
2000-10-31	6.081
2000-11-30	6.0007
2000-12-31	5.8882
2001-01-31	5.7642
2001-02-28	5.6854
2001-03-31	5.473
2001-04-30	5.3323
2001-05-31	5.1727
2001-06-30	5.189
2001-07-31	5.1917
2001-08-31	4.9269
2001-09-30	4.6485
2001-10-31	4.3594
2001-11-30	3.9326
2001-12-31	3.9852
2002-01-31	3.978
2002-02-28	3.9805
2002-03-31	4.0609
2002-04-30	4.1086
2002-05-31	4.0795
2002-06-30	4.112
2002-07-31	3.9925
2002-08-31	3.9174
2002-09-30	3.9315
2002-10-31	3.9015
2002-11-30	3.9091
2002-12-31	3.9488
2003-01-31	3.9132
2003-02-28	3.6888
2003-03-31	3.5838
2003-04-30	3.576
2003-05-31	3.5665
2003-06-30	3.5702
2003-07-31	3.42
2003-08-31	3.4518
2003-09-30	3.6311
2003-10-31	3.727
2003-11-30	3.9085
2003-12-31	3.949
2004-01-31	3.986
2004-02-29	4.101
2004-03-31	4.2328
2004-04-30	4.3288
2004-05-31	4.4555
2004-06-30	4.7305
2004-07-31	4.7859
2004-08-31	4.8938
2004-09-30	4.8743
2004-10-31	4.8336
2004-11-30	4.8159
2004-12-31	4.8057
2005-01-31	4.8045
2005-02-28	4.822
2005-03-31	4.9186
2005-04-30	4.8756
2005-05-31	4.8253
2005-06-30	4.7777
2005-07-31	4.5948
2005-08-31	4.533
2005-09-30	4.5359
2005-10-31	4.525
2005-11-30	4.5614
2005-12-31	4.587
2006-01-31	4.5369
2006-02-28	4.5203
2006-03-31	4.5263
2006-04-30	4.5725
2006-05-31	4.6519
2006-06-30	4.6927
2006-07-31	4.6838
2006-08-31	4.8968
2006-09-30	4.9819
2006-10-31	5.0909
2006-11-30	5.1791
2006-12-31	5.2453
2007-01-31	5.4545
2007-02-28	5.5248
2007-03-31	5.5041
2007-04-30	5.6058
2007-05-31	5.7221
2007-06-30	5.8348
2007-07-31	5.9789
2007-08-31	6.3389
2007-09-30	6.5813
2007-10-31	6.2122
2007-11-30	6.3564
2007-12-31	6.3542
2008-01-31	5.6071
2008-02-29	5.6083
2008-03-31	5.8555
2008-04-30	5.8961
2008-05-31	5.7933
2008-06-30	5.9002
2008-07-31	5.803
2008-08-31	5.7588
2008-09-30	5.8698
2008-10-31	6.1772
2008-11-30	4.3955
2008-12-31	3.2143
2009-01-31	2.28
2009-02-28	2.0758
2009-03-31	1.8273
2009-04-30	1.4838
2009-05-31	1.3026
2009-06-30	1.2057
2009-07-31	1.0293
2009-08-31	0.7963
2009-09-30	0.617
2009-10-31	0.5636
2009-11-30	0.5976
2009-12-31	0.6071
2010-01-31	0.6013
2010-02-28	0.5995
2010-03-31	0.6002
2010-04-30	0.6
2010-05-31	0.6645
2010-06-30	0.7045
2010-07-31	0.75
2010-08-31	0.75
2010-09-30	0.7545
2010-10-31	0.75
2010-11-30	0.75
2010-12-31	0.755
2011-01-31	0.7785
2011-02-28	0.775
2011-03-31	0.7811
2011-04-30	0.8
2011-05-31	0.8
2011-06-30	0.8464
2011-07-31	0.86
2011-08-31	0.8873
2011-09-30	0.9664
2011-10-31	1.0179
2011-11-30	1.0511
2011-12-31	1.0878
2012-01-31	1.1086
2012-02-29	1.0971
2012-03-31	1.0752
2012-04-30	1.0558
2012-05-31	1.0143
2012-06-30	0.9658
2012-07-31	0.8627
2012-08-31	0.7048
2012-09-30	0.6418
2012-10-31	0.535
2012-11-30	0.5034
2012-12-31	0.5
2013-01-31	0.4927
2013-02-28	0.49
2013-03-31	0.4865
2013-04-30	0.485
2013-05-31	0.485
2013-06-30	0.485
2013-07-31	0.4839
2013-08-31	0.485
2013-09-30	0.4931
2013-10-31	0.495
2013-11-30	0.5017
2013-12-31	0.5335
2014-01-31	0.5318
2014-02-28	0.5288
2014-03-31	0.53
2014-04-30	0.532
2014-05-31	0.55
2014-06-30	0.55
2014-07-31	0.5487
2014-08-31	0.545
2014-09-30	0.5505
2014-10-31	0.5426
2014-11-30	0.53
2014-12-31	0.53
2015-01-31	0.53
2015-02-28	0.53
2015-03-31	0.53
2015-04-30	0.533
2015-05-31	0.54
2015-06-30	0.5505
2015-07-31	0.567
2015-08-31	0.57
2015-09-30	0.57
2015-10-31	0.57
2015-11-30	0.57
2015-12-31	0.57
2016-01-31	0.566
2016-02-29	0.565
2016-03-31	0.565
2016-04-30	0.565
2016-05-31	0.565
2016-06-30	0.563
2016-07-31	0.5414
2016-08-31	0.468
2016-09-30	0.3627
2016-10-31	0.3748
2016-11-30	0.38
2016-12-31	0.3775
2017-01-31	0.3452
2017-02-28	0.34
2017-03-31	0.3304
2017-04-30	0.33
2017-05-31	0.3267
2017-06-30	0.32
2017-07-31	0.32
2017-08-31	0.3123
2017-09-30	0.3157
2017-10-31	0.3491
2017-11-30	0.4364