Month	Percent
1978-01-31	6.6457
1978-02-28	6.0873
1978-03-31	6.3743
1978-04-30	6.4113
1978-05-31	8.1955
1978-06-30	10.0843
1978-07-31	10.5136
1978-08-31	9.332
1978-09-30	8.8324
1978-10-31	9.2486
1978-11-30	11.2766
1978-12-31	11.7129
1979-01-31	11.5755
1979-02-28	13.2038
1979-03-31	12.8866
1979-04-30	11.9558
1979-05-31	11.9671
1979-06-30	13.0245
1979-07-31	14.1325
1979-08-31	14.0059
1979-09-30	13.7693
1979-10-31	13.798
1979-11-30	15.192
1979-12-31	16.2547
1980-01-31	17.717
1980-02-29	17.5348
1980-03-31	17.494
1980-04-30	17.4175
1980-05-31	17.221
1980-06-30	17.2129
1980-07-31	17.3546
1980-08-31	16.7963
1980-09-30	16.4534
1980-10-31	17.1037
1980-11-30	15.8565
1980-12-31	14.2786
1981-01-31	14.1419
1981-02-28	14.2768
1981-03-31	13.7068
1981-04-30	12.093
1981-05-31	11.5429
1981-06-30	11.267
1981-07-31	12.4243
1981-08-31	12.87
1981-09-30	13.8175
1981-10-31	15.8727
1981-11-30	15.6207
1981-12-31	14.9174
1982-01-31	14.7548
1982-02-28	14.4428
1982-03-31	13.952
1982-04-30	13.085
1982-05-31	13.1847
1982-06-30	12.9525
1982-07-31	12.6768
1982-08-31	11.641
1982-09-30	11.0691
1982-10-31	10.4293
1982-11-30	9.428
1982-12-31	10.7479
1983-01-31	11.305
1983-02-28	11.551
1983-03-31	11.2472
1983-04-30	10.6905
1983-05-31	10.4895
1983-06-30	9.9995
1983-07-31	9.5271
1983-08-31	9.4434
1983-09-30	9.8582
1983-10-31	9.3371
1983-11-30	9.2007
1983-12-31	9.1823
1984-01-31	9.2924
1984-02-29	9.3245
1984-03-31	9.067
1984-04-30	8.7297
1984-05-31	8.0419
1984-06-30	8.854
1984-07-31	11.4973
1984-08-31	11.5277
1984-09-30	10.7533
1984-10-31	10.7737
1984-11-30	10.2418
1984-12-31	9.4892
1985-01-31	11.3393
1985-02-28	14.1333
1985-03-31	14.47
1985-04-30	13.2373
1985-05-31	12.6838
1985-06-30	12.6865
1985-07-31	12.597
1985-08-31	11.9
1985-09-30	11.6314
1985-10-31	11.7311
1985-11-30	11.61
1985-12-31	11.5645
1986-01-31	11.9048
1986-02-28	12.6458
1986-03-31	12.5839
1986-04-30	11.3652
1986-05-31	10.5598
1986-06-30	10.2105
1986-07-31	10.1172
1986-08-31	10.0205
1986-09-30	9.6664
1986-10-31	10.212
1986-11-30	10.6855
1986-12-31	10.9388
1987-01-31	11.0955
1987-02-28	11.1238
1987-03-31	10.7491
1987-04-30	9.8958
1987-05-31	8.885
1987-06-30	9.0052
1987-07-31	8.8876
1987-08-31	9.2063
1987-09-30	9.6668
1987-10-31	9.6834
1987-11-30	9.0964
1987-12-31	8.5133
1988-01-31	8.207
1988-02-29	8.3812
1988-03-31	8.5535
1988-04-30	8.1047
1988-05-31	7.358
1988-06-30	7.4968
1988-07-31	9.4833
1988-08-31	10.4818
1988-09-30	10.8955
1988-10-31	11.8502
1988-11-30	11.9318
1988-12-31	12.6505
1989-01-31	12.9943
1989-02-28	12.774
1989-03-31	12.6773
1989-04-30	11.7908
1989-05-31	12.5819
1989-06-30	13.31
1989-07-31	13.8846
1989-08-31	13.8523
1989-09-30	13.8483
1989-10-31	14.8391
1989-11-30	14.9141
1989-12-31	15.0195
1990-01-31	14.9667
1990-02-28	14.9233
1990-03-31	14.8848
1990-04-30	14.8684
1990-05-31	14.925
1990-06-30	14.8271
1990-07-31	14.9193
1990-08-31	14.9452
1990-09-30	14.909
1990-10-31	14.1228
1990-11-30	14.3527
1990-12-31	14.3476
1991-01-31	14.0486
1991-02-28	13.9208
1991-03-31	13.2218
1991-04-30	12.0698
1991-05-31	12.1074
1991-06-30	11.6268
1991-07-31	11.3017
1991-08-31	10.9583
1991-09-30	10.6264
1991-10-31	10.5789
1991-11-30	10.4793
1991-12-31	10.778
1992-01-31	10.6293
1992-02-29	10.566
1992-03-31	10.4832
1992-04-30	10.3005
1992-05-31	9.9429
1992-06-30	9.9293
1992-07-31	10.0207
1992-08-31	9.798
1992-09-30	9.9975
1992-10-31	9.3266
1992-11-30	7.5367
1992-12-31	6.931
1993-01-31	6.99
1993-02-28	6.0738
1993-03-31	6.0239
1993-04-30	5.816
1993-05-31	5.75
1993-06-30	5.8291
1993-07-31	5.9889
1993-08-31	5.8436
1993-09-30	5.9357
1993-10-31	5.82
1993-11-30	5.7131
1993-12-31	5.624
1994-01-31	5.4036
1994-02-28	5.0999
1994-03-31	5.1154
1994-04-30	4.9166
1994-05-31	4.8763
1994-06-30	4.8191
1994-07-31	4.9486
1994-08-31	4.8186
1994-09-30	4.9255
1994-10-31	5.3493
1994-11-30	5.2728
1994-12-31	5.5439
1995-01-31	5.84
1995-02-28	6.2927
1995-03-31	5.923
1995-04-30	5.784
1995-05-31	5.987
1995-06-30	6.2445
1995-07-31	6.5462
1995-08-31	6.5836
1995-09-30	6.6648
1995-10-31	6.6202
1995-11-30	6.7789
1995-12-31	6.6305
1996-01-31	6.4159
1996-02-29	6.2836
1996-03-31	6.0371
1996-04-30	5.933
1996-05-31	5.9833
1996-06-30	5.7595
1996-07-31	5.7411
1996-08-31	5.7131
1996-09-30	5.7345
1996-10-31	5.788
1996-11-30	5.9338
1996-12-31	5.9043
1997-01-31	5.9498
1997-02-28	6.0218
1997-03-31	5.9763
1997-04-30	5.9961
1997-05-31	6.231
1997-06-30	6.3326
1997-07-31	6.6063
1997-08-31	6.9985
1997-09-30	7.0155
1997-10-31	7.1146
1997-11-30	7.265
1997-12-31	7.2174
1998-01-31	7.271
1998-02-28	7.3688
1998-03-31	7.3805
1998-04-30	7.2797
1998-05-31	7.2764
1998-06-30	7.2997
1998-07-31	7.3428
1998-08-31	7.5735
1998-09-30	7.3995
1998-10-31	7.4986
1998-11-30	6.8855
1998-12-31	6.4274
1999-01-31	6.0153
1999-02-28	5.661
1999-03-31	5.4737
1999-04-30	5.2978
1999-05-31	5.2795
1999-06-30	4.9841
1999-07-31	5.013
1999-08-31	4.9436
1999-09-30	5.0036
1999-10-31	5.1524
1999-11-30	5.2673
1999-12-31	5.0248
2000-01-31	5.5111
2000-02-29	5.9549
2000-03-31	5.8497
2000-04-30	5.9063
2000-05-31	5.9808
2000-06-30	5.9235
2000-07-31	5.9152
2000-08-31	5.8963
2000-09-30	5.994
2000-10-31	5.9077
2000-11-30	5.9265
2000-12-31	5.866
2001-01-31	5.8679
2001-02-28	5.7547
2001-03-31	5.5725
2001-04-30	5.3258
2001-05-31	5.2799
2001-06-30	4.9301
2001-07-31	5.1678
2001-08-31	4.7933
2001-09-30	4.8125
2001-10-31	4.522
2001-11-30	3.8146
2001-12-31	4.1678
2002-01-31	3.8679
2002-02-28	3.8922
2002-03-31	3.9977
2002-04-30	3.7984
2002-05-31	3.8295
2002-06-30	3.6875
2002-07-31	3.733
2002-08-31	3.9382
2002-09-30	3.8378
2002-10-31	3.9375
2002-11-30	3.7887
2002-12-31	4.0469
2003-01-31	3.8281
2003-02-28	3.6828
2003-03-31	3.6875
2003-04-30	3.6344
2003-05-31	3.6117
2003-06-30	3.6324
2003-07-31	3.3668
2003-08-31	3.4031
2003-09-30	3.5284
2003-10-31	3.4164
2003-11-30	3.6406
2003-12-31	3.7857
2004-01-31	3.692
2004-02-29	3.9656
2004-03-31	3.9918
2004-04-30	3.9345
2004-05-31	4.2788
2004-06-30	4.4254
2004-07-31	4.4623
2004-08-31	4.7121
2004-09-30	4.7358
2004-10-31	4.7269
2004-11-30	4.7244
2004-12-31	4.7643
2005-01-31	4.7383
2005-02-28	4.7448
2005-03-31	4.7471
2005-04-30	4.7721
2005-05-31	4.7568
2005-06-30	4.7534
2005-07-31	4.7386
2005-08-31	4.5293
2005-09-30	4.5357
2005-10-31	4.491
2005-11-30	4.5114
2005-12-31	4.5788
2006-01-31	4.5155
2006-02-28	4.4733
2006-03-31	4.5065
2006-04-30	4.5092
2006-05-31	4.551
2006-06-30	4.5911
2006-07-31	4.5583
2006-08-31	4.8025
2006-09-30	4.8226
2006-10-31	4.8355
2006-11-30	5.0316
2006-12-31	5.1147
2007-01-31	5.2368
2007-02-28	5.3345
2007-03-31	5.3266
2007-04-30	5.3245
2007-05-31	5.519
2007-06-30	5.5962
2007-07-31	5.8305
2007-08-31	6.003
2007-09-30	5.9673
2007-10-31	5.8098
2007-11-30	5.8296
2007-12-31	5.6992
2008-01-31	5.5325
2008-02-29	5.3395
2008-03-31	5.3905
2008-04-30	5.1448
2008-05-31	5.0758
2008-06-30	5.096
2008-07-31	5.0689
2008-08-31	5.0478
2008-09-30	5.2668
2008-10-31	4.9804
2008-11-30	3.2125
2008-12-31	1.9571
2009-01-31	1.5202
2009-02-28	1.1275
2009-03-31	0.7284
2009-04-30	0.5588
2009-05-31	0.5447
2009-06-30	0.5261
2009-07-31	0.5233
2009-08-31	0.5238
2009-09-30	0.5186
2009-10-31	0.5039
2009-11-30	0.494
2009-12-31	0.494
2010-01-31	0.4963
2010-02-28	0.48
2010-03-31	0.4752
2010-04-30	0.4905
2010-05-31	0.5311
2010-06-30	0.535
2010-07-31	0.535
2010-08-31	0.535
2010-09-30	0.535
2010-10-31	0.539
2010-11-30	0.548
2010-12-31	0.575
2011-01-31	0.575
2011-02-28	0.575
2011-03-31	0.5572
2011-04-30	0.5572
2011-05-31	0.585
2011-06-30	0.5818
2011-07-31	0.5774
2011-08-31	0.5977
2011-09-30	0.6068
2011-10-31	0.6726
2011-11-30	0.6625
2011-12-31	0.66
2012-01-31	0.6536
2012-02-29	0.6321
2012-03-31	0.6216
2012-04-30	0.5961
2012-05-31	0.5664
2012-06-30	0.5618
2012-07-31	0.547
2012-08-31	0.5082
2012-09-30	0.475
2012-10-31	0.475
2012-11-30	0.475
2012-12-31	0.4724
2013-01-31	0.475
2013-02-28	0.4759
2013-03-31	0.475
2013-04-30	0.475
2013-05-31	0.475
2013-06-30	0.475
2013-07-31	0.475
2013-08-31	0.475
2013-09-30	0.475
2013-10-31	0.475
2013-11-30	0.475
2013-12-31	0.475
2014-01-31	0.475
2014-02-28	0.475
2014-03-31	0.475
2014-04-30	0.4738
2014-05-31	0.4738
2014-06-30	0.475
2014-07-31	0.475
2014-08-31	0.475
2014-09-30	0.4739
2014-10-31	0.4511
2014-11-30	0.45
2014-12-31	0.45
2015-01-31	0.45
2015-02-28	0.45
2015-03-31	0.45
2015-04-30	0.45
2015-05-31	0.45
2015-06-30	0.4511
2015-07-31	0.45
2015-08-31	0.45
2015-09-30	0.4489
2015-10-31	0.45
2015-11-30	0.45
2015-12-31	0.4476
2016-01-31	0.45
2016-02-29	0.45
2016-03-31	0.45
2016-04-30	0.4643
2016-05-31	0.475
2016-06-30	0.4739
2016-07-31	0.4576
2016-08-31	0.3493
2016-09-30	0.2398
2016-10-31	0.24
2016-11-30	0.2398
2016-12-31	0.24
2017-01-31	0.24
2017-02-28	0.24
2017-03-31	0.2326
2017-04-30	0.23
2017-05-31	0.23
2017-06-30	0.2282
2017-07-31	0.23
2017-08-31	0.2332
2017-09-30	0.2402
2017-10-31	0.2423
2017-11-30	0.3582