Month	Percent
1978-01-31	6.5086
1978-02-28	7.487
1978-03-31	7.3543
1978-04-30	8.195
1978-05-31	9.6598
1978-06-30	10.2361
1978-07-31	10.319
1978-08-31	9.5645
1978-09-30	9.7088
1978-10-31	10.9052
1978-11-30	12.0159
1978-12-31	12.2253
1979-01-31	12.6755
1979-02-28	13.1668
1979-03-31	11.5732
1979-04-30	11.3363
1979-05-31	11.6131
1979-06-30	12.7602
1979-07-31	13.3536
1979-08-31	13.6409
1979-09-30	13.8965
1979-10-31	14.0724
1979-11-30	15.9661
1979-12-31	16.4055
1980-01-31	16.315
1980-02-29	17.1369
1980-03-31	17.5931
1980-04-30	16.9813
1980-05-31	16.1113
1980-06-30	15.5724
1980-07-31	14.7022
1980-08-31	15.7743
1980-09-30	15.1545
1980-10-31	15.0933
1980-11-30	15.3085
1980-12-31	14.4331
1981-01-31	13.7495
1981-02-28	12.634
1981-03-31	12.365
1981-04-30	12.1918
1981-05-31	12.5461
1981-06-30	12.9698
1981-07-31	13.8989
1981-08-31	14.27
1981-09-30	14.9002
1981-10-31	16.3261
1981-11-30	14.7552
1981-12-31	15.3569
1982-01-31	15.1858
1982-02-28	14.4873
1982-03-31	13.5333
1982-04-30	13.794
1982-05-31	13.3503
1982-06-30	13.0223
1982-07-31	12.432
1982-08-31	11.1279
1982-09-30	10.9316
1982-10-31	9.7814
1982-11-30	9.3107
1982-12-31	10.4543
1983-01-31	11.2425
1983-02-28	11.3258
1983-03-31	10.9072
1983-04-30	10.2792
1983-05-31	10.3493
1983-06-30	10.1607
1983-07-31	10.3931
1983-08-31	10.405
1983-09-30	9.9498
1983-10-31	9.6207
1983-11-30	9.5377
1983-12-31	9.7883
1984-01-31	9.7548
1984-02-29	9.646
1984-03-31	9.1595
1984-04-30	9.2363
1984-05-31	9.9043
1984-06-30	10.0117
1984-07-31	11.7045
1984-08-31	11.1407
1984-09-30	10.9985
1984-10-31	10.7546
1984-11-30	10.0461
1984-12-31	10.0513
1985-01-31	11.4768
1985-02-28	13.0485
1985-03-31	12.8462
1985-04-30	12.3155
1985-05-31	12.4626
1985-06-30	12.2138
1985-07-31	11.8276
1985-08-31	11.2038
1985-09-30	11.345
1985-10-31	11.3459
1985-11-30	11.4595
1985-12-31	11.667
1986-01-31	12.7786
1986-02-28	12.4633
1986-03-31	11.3426
1986-04-30	10.023
1986-05-31	9.8995
1986-06-30	9.6088
1986-07-31	9.9061
1986-08-31	9.77
1986-09-30	10.1461
1986-10-31	11.1359
1986-11-30	11.2028
1986-12-31	11.3669
1987-01-31	10.9029
1987-02-28	10.6123
1987-03-31	9.7355
1987-04-30	9.6258
1987-05-31	8.8447
1987-06-30	8.9082
1987-07-31	9.3374
1987-08-31	10.2158
1987-09-30	10.365
1987-10-31	10.132
1987-11-30	8.9481
1987-12-31	8.9343
1988-01-31	9.1625
1988-02-29	9.4119
1988-03-31	9.0259
1988-04-30	8.5095
1988-05-31	8.4688
1988-06-30	9.2548
1988-07-31	10.6417
1988-08-31	11.4105
1988-09-30	12.2182
1988-10-31	11.9412
1988-11-30	12.2466
1988-12-31	13.094
1989-01-31	12.9548
1989-02-28	12.908
1989-03-31	13.0252
1989-04-30	13.179
1989-05-31	13.2021
1989-06-30	14.2868
1989-07-31	13.8149
1989-08-31	13.7291
1989-09-30	13.99
1989-10-31	14.9114
1989-11-30	14.9418
1989-12-31	14.9955
1990-01-31	15.1216
1990-02-28	15.1313
1990-03-31	15.4577
1990-04-30	15.4479
1990-05-31	15.2562
1990-06-30	14.9695
1990-07-31	14.8582
1990-08-31	14.8945
1990-09-30	14.814
1990-10-31	13.7772
1990-11-30	13.1186
1990-12-31	13.1782
1991-01-31	13.4973
1991-02-28	12.724
1991-03-31	11.9038
1991-04-30	11.6429
1991-05-31	11.2588
1991-06-30	10.994
1991-07-31	10.8661
1991-08-31	10.7317
1991-09-30	10.1698
1991-10-31	10.2715
1991-11-30	10.3821
1991-12-31	10.7218
1992-01-31	10.5236
1992-02-29	10.2493
1992-03-31	10.668
1992-04-30	10.5818
1992-05-31	10.0292
1992-06-30	9.9686
1992-07-31	10.1561
1992-08-31	10.4405
1992-09-30	9.9248
1992-10-31	7.9293
1992-11-30	6.8326
1992-12-31	6.9564
1993-01-31	6.7115
1993-02-28	5.868
1993-03-31	5.8176
1993-04-30	5.994
1993-05-31	6.0197
1993-06-30	5.8789
1993-07-31	5.8848
1993-08-31	5.6836
1993-09-30	5.8016
1993-10-31	5.6167
1993-11-30	5.4523
1993-12-31	5.2152
1994-01-31	5.3126
1994-02-28	5.2004
1994-03-31	5.1913
1994-04-30	5.3639
1994-05-31	5.3915
1994-06-30	5.4191
1994-07-31	5.4915
1994-08-31	5.9552
1994-09-30	6.195
1994-10-31	6.4245
1994-11-30	6.5253
1994-12-31	6.9258
1995-01-31	7.0276
1995-02-28	7.1058
1995-03-31	7.0833
1995-04-30	7.0255
1995-05-31	7.0271
1995-06-30	6.8198
1995-07-31	6.93
1995-08-31	6.8839
1995-09-30	6.7181
1995-10-31	6.7541
1995-11-30	6.575
1995-12-31	6.3345
1996-01-31	6.2691
1996-02-29	6.0717
1996-03-31	6.059
1996-04-30	6.0645
1996-05-31	6.0905
1996-06-30	5.8848
1996-07-31	5.7448
1996-08-31	5.779
1996-09-30	5.8226
1996-10-31	6.043
1996-11-30	6.4819
1996-12-31	6.5343
1997-01-31	6.5023
1997-02-28	6.3468
1997-03-31	6.3974
1997-04-30	6.603
1997-05-31	6.627
1997-06-30	6.8205
1997-07-31	7.148
1997-08-31	7.2893
1997-09-30	7.329
1997-10-31	7.3698
1997-11-30	7.65
1997-12-31	7.6786
1998-01-31	7.4898
1998-02-28	7.4527
1998-03-31	7.4841
1998-04-30	7.4374
1998-05-31	7.4032
1998-06-30	7.6784
1998-07-31	7.7788
1998-08-31	7.6488
1998-09-30	7.2714
1998-10-31	6.9093
1998-11-30	6.6395
1998-12-31	6.0774
1999-01-31	5.5665
1999-02-28	5.3015
1999-03-31	5.2383
1999-04-30	5.1968
1999-05-31	5.2421
1999-06-30	5.1407
1999-07-31	5.2493
1999-08-31	5.5136
1999-09-30	5.7693
1999-10-31	6.0569
1999-11-30	5.9425
1999-12-31	6.1476
2000-01-31	6.3131
2000-02-29	6.3362
2000-03-31	6.3327
2000-04-30	6.3776
2000-05-31	6.3741
2000-06-30	6.2691
2000-07-31	6.2322
2000-08-31	6.2564
2000-09-30	6.2307
2000-10-31	6.163
2000-11-30	6.027
2000-12-31	5.8505
2001-01-31	5.6534
2001-02-28	5.5711
2001-03-31	5.3687
2001-04-30	5.2321
2001-05-31	5.1563
2001-06-30	5.2538
2001-07-31	5.2664
2001-08-31	4.944
2001-09-30	4.6086
2001-10-31	4.333
2001-11-30	3.9283
2001-12-31	4
2002-01-31	4.0654
2002-02-28	4.15
2002-03-31	4.2539
2002-04-30	4.3266
2002-05-31	4.3018
2002-06-30	4.3212
2002-07-31	4.1304
2002-08-31	3.9433
2002-09-30	3.9405
2002-10-31	3.9089
2002-11-30	3.9271
2002-12-31	3.9583
2003-01-31	3.8982
2003-02-28	3.6283
2003-03-31	3.5167
2003-04-30	3.5168
2003-05-31	3.5103
2003-06-30	3.5007
2003-07-31	3.4026
2003-08-31	3.537
2003-09-30	3.7243
2003-10-31	3.8896
2003-11-30	4.1005
2003-12-31	4.0876
2004-01-31	4.1398
2004-02-29	4.2308
2004-03-31	4.3702
2004-04-30	4.4998
2004-05-31	4.6597
2004-06-30	4.9402
2004-07-31	4.9702
2004-08-31	5.026
2004-09-30	4.9807
2004-10-31	4.901
2004-11-30	4.8755
2004-12-31	4.8383
2005-01-31	4.8238
2005-02-28	4.8843
2005-03-31	5.0064
2005-04-30	4.9226
2005-05-31	4.8238
2005-06-30	4.7432
2005-07-31	4.5043
2005-08-31	4.5018
2005-09-30	4.5005
2005-10-31	4.5076
2005-11-30	4.5741
2005-12-31	4.575
2006-01-31	4.5352
2006-02-28	4.528
2006-03-31	4.5598
2006-04-30	4.6147
2006-05-31	4.7371
2006-06-30	4.7652
2006-07-31	4.7648
2006-08-31	4.9966
2006-09-30	5.0938
2006-10-31	5.1957
2006-11-30	5.2664
2006-12-31	5.3311
2007-01-31	5.5777
2007-02-28	5.648
2007-03-31	5.608
2007-04-30	5.7218
2007-05-31	5.8407
2007-06-30	5.9807
2007-07-31	6.1114
2007-08-31	6.3414
2007-09-30	6.5048
2007-10-31	6.1893
2007-11-30	6.193
2007-12-31	6.155
2008-01-31	5.5316
2008-02-29	5.5495
2008-03-31	5.8224
2008-04-30	5.8851
2008-05-31	5.8485
2008-06-30	6.0943
2008-07-31	5.9935
2008-08-31	5.918
2008-09-30	5.9884
2008-10-31	6.2452
2008-11-30	4.51
2008-12-31	3.394
2009-01-31	2.4319
2009-02-28	2.221
2009-03-31	2.0375
2009-04-30	1.7275
2009-05-31	1.5171
2009-06-30	1.4432
2009-07-31	1.2717
2009-08-31	1.0358
2009-09-30	0.8511
2009-10-31	0.7818
2009-11-30	0.825
2009-12-31	0.8329
2010-01-31	0.8313
2010-02-28	0.8383
2010-03-31	0.8439
2010-04-30	0.85
2010-05-31	0.91
2010-06-30	0.9736
2010-07-31	1.02
2010-08-31	1.02
2010-09-30	1.02
2010-10-31	1.0293
2010-11-30	1.032
2010-12-31	1.0419
2011-01-31	1.0598
2011-02-28	1.0485
2011-03-31	1.0828
2011-04-30	1.0917
2011-05-31	1.078
2011-06-30	1.1152
2011-07-31	1.1288
2011-08-31	1.1561
2011-09-30	1.2343
2011-10-31	1.2888
2011-11-30	1.3443
2011-12-31	1.3858
2012-01-31	1.4086
2012-02-29	1.4014
2012-03-31	1.385
2012-04-30	1.3626
2012-05-31	1.3284
2012-06-30	1.2555
2012-07-31	1.143
2012-08-31	0.9659
2012-09-30	0.8905
2012-10-31	0.7763
2012-11-30	0.6795
2012-12-31	0.6655
2013-01-31	0.6493
2013-02-28	0.6425
2013-03-31	0.595
2013-04-30	0.5705
2013-05-31	0.565
2013-06-30	0.565
2013-07-31	0.5735
2013-08-31	0.575
2013-09-30	0.5831
2013-10-31	0.585
2013-11-30	0.5867
2013-12-31	0.5973
2014-01-31	0.5886
2014-02-28	0.591
2014-03-31	0.596
2014-04-30	0.614
2014-05-31	0.665
2014-06-30	0.6702
2014-07-31	0.675
2014-08-31	0.67
2014-09-30	0.6768
2014-10-31	0.6798
2014-11-30	0.675
2014-12-31	0.675
2015-01-31	0.6683
2015-02-28	0.67
2015-03-31	0.675
2015-04-30	0.6765
2015-05-31	0.68
2015-06-30	0.7364
2015-07-31	0.79
2015-08-31	0.79
2015-09-30	0.79
2015-10-31	0.79
2015-11-30	0.79
2015-12-31	0.79
2016-01-31	0.79
2016-02-29	0.79
2016-03-31	0.79
2016-04-30	0.79
2016-05-31	0.79
2016-06-30	0.7875
2016-07-31	0.7052
2016-08-31	0.6582
2016-09-30	0.5418
2016-10-31	0.5624
2016-11-30	0.565
2016-12-31	0.565
2017-01-31	0.544
2017-02-28	0.5258
2017-03-31	0.5061
2017-04-30	0.5028
2017-05-31	0.4924
2017-06-30	0.483
2017-07-31	0.49
2017-08-31	0.4861
2017-09-30	0.499
2017-10-31	0.5443
2017-11-30	0.5825