Month	Percent
1989-01-01	4.800
1989-02-01	4.894
1989-03-01	5.147
1989-04-01	5.221
1989-05-01	5.174
1989-06-01	5.225
1989-07-01	5.040
1989-08-01	4.883
1989-09-01	5.096
1989-10-01	5.156
1989-11-01	5.371
1989-12-01	5.520
1990-01-01	6.449
1990-02-01	6.778
1990-03-01	6.899
1990-04-01	6.906
1990-05-01	6.508
1990-06-01	6.421
1990-07-01	6.772
1990-08-01	7.620
1990-09-01	8.032
1990-10-01	7.600
1990-11-01	7.080
1990-12-01	6.454
1991-01-01	6.432
1991-02-01	6.309
1991-03-01	6.591
1991-04-01	6.640
1991-05-01	6.637
1991-06-01	6.735
1991-07-01	6.670
1991-08-01	6.414
1991-09-01	6.081
1991-10-01	5.885
1991-11-01	5.927
1991-12-01	5.719
1992-01-01	5.449
1992-02-01	5.578
1992-03-01	5.531
1992-04-01	5.710
1992-05-01	5.739
1992-06-01	5.640
1992-07-01	5.408
1992-08-01	5.112
1992-09-01	5.021
1992-10-01	5.015
1992-11-01	4.868
1992-12-01	4.848
1993-01-01	4.723
1993-02-01	4.409
1993-03-01	4.318
1993-04-01	4.593
1993-05-01	4.943
1993-06-01	4.836
1993-07-01	4.517
1993-08-01	4.407
1993-09-01	4.016
1993-10-01	3.931
1993-11-01	3.762
1993-12-01	3.396
1994-01-01	3.597
1994-02-01	4.041
1994-03-01	4.453
1994-04-01	4.093
1994-05-01	3.984
1994-06-01	4.278
1994-07-01	4.531
1994-08-01	4.778
1994-09-01	4.642
1994-10-01	4.684
1994-11-01	4.718
1994-12-01	4.561
1995-01-01	4.605
1995-02-01	4.515
1995-03-01	4.113
1995-04-01	3.545
1995-05-01	3.386
1995-06-01	3.024
1995-07-01	2.933
1995-08-01	3.215
1995-09-01	3.030
1995-10-01	2.925
1995-11-01	3.048
1995-12-01	2.983
1996-01-01	3.120
1996-02-01	3.271
1996-03-01	3.299
1996-04-01	3.301
1996-05-01	3.388
1996-06-01	3.252
1996-07-01	3.294
1996-08-01	3.209
1996-09-01	2.928
1996-10-01	2.800
1996-11-01	2.759
1996-12-01	2.597
1997-01-01	2.632
1997-02-01	2.583
1997-03-01	2.524
1997-04-01	2.382
1997-05-01	2.736
1997-06-01	2.684
1997-07-01	2.505
1997-08-01	2.354
1997-09-01	2.210
1997-10-01	1.994
1997-11-01	1.941
1997-12-01	1.939
1998-01-01	1.948
1998-02-01	2.000
1998-03-01	1.855
1998-04-01	1.867
1998-05-01	1.655
1998-06-01	1.540
1998-07-01	1.683
1998-08-01	1.502
1998-09-01	1.103
1998-10-01	0.879
1998-11-01	0.977
1998-12-01	1.488
1999-01-01	1.910
1999-02-01	2.117
1999-03-01	1.816
1999-04-01	1.563
1999-05-01	1.334
1999-06-01	1.632
1999-07-01	1.703
1999-08-01	1.878
1999-09-01	1.759
1999-10-01	1.692
1999-11-01	1.817
1999-12-01	1.767
2000-01-01	1.691
2000-02-01	1.796
2000-03-01	1.819
2000-04-01	1.740
2000-05-01	1.705
2000-06-01	1.664
2000-07-01	1.689
2000-08-01	1.750
2000-09-01	1.876
2000-10-01	1.815
2000-11-01	1.764
2000-12-01	1.624
2001-01-01	1.508
2001-02-01	1.415
2001-03-01	1.169
2001-04-01	1.315
2001-05-01	1.250
2001-06-01	1.152
2001-07-01	1.305
2001-08-01	1.343
2001-09-01	1.346
2001-10-01	1.363
2001-11-01	1.328
2001-12-01	1.334
2002-01-01	1.420
2002-02-01	1.501
2002-03-01	1.421
2002-04-01	1.394
2002-05-01	1.365
2002-06-01	1.328
2002-07-01	1.296
2002-08-01	1.255
2002-09-01	1.129
2002-10-01	1.095
2002-11-01	0.979
2002-12-01	0.975
2003-01-01	0.836
2003-02-01	0.828
2003-03-01	0.724
2003-04-01	0.663
2003-05-01	0.577
2003-06-01	0.529
2003-07-01	0.956
2003-08-01	1.406
2003-09-01	1.420
2003-10-01	1.437
2003-11-01	1.333
2003-12-01	1.330
2004-01-01	1.330
2004-02-01	1.211
2004-03-01	1.418
2004-04-01	1.520
2004-05-01	1.505
2004-06-01	1.807
2004-07-01	1.808
2004-08-01	1.588
2004-09-01	1.393
2004-10-01	1.483
2004-11-01	1.452
2004-12-01	1.397
2005-01-01	1.310
2005-02-01	1.419
2005-03-01	1.325
2005-04-01	1.257
2005-05-01	1.238
2005-06-01	1.143
2005-07-01	1.295
2005-08-01	1.365
2005-09-01	1.450
2005-10-01	1.513
2005-11-01	1.454
2005-12-01	1.488
2006-01-01	1.547
2006-02-01	1.598
2006-03-01	1.759
2006-04-01	1.956
2006-05-01	1.849
2006-06-01	1.901
2006-07-01	1.927
2006-08-01	1.668
2006-09-01	1.628
2006-10-01	1.718
2006-11-01	1.690
2006-12-01	1.645
2007-01-01	1.705
2007-02-01	1.640
2007-03-01	1.629
2007-04-01	1.653
2007-05-01	1.733
2007-06-01	1.903
2007-07-01	1.809
2007-08-01	1.577
2007-09-01	1.698
2007-10-01	1.616
2007-11-01	1.497
2007-12-01	1.526
2008-01-01	1.429
2008-02-01	1.429
2008-03-01	1.245
2008-04-01	1.600
2008-05-01	1.778
2008-06-01	1.601
2008-07-01	1.537
2008-08-01	1.431
2008-09-01	1.481
2008-10-01	1.486
2008-11-01	1.377
2008-12-01	1.214
2009-01-01	1.272
2009-02-01	1.277
2009-03-01	1.323
2009-04-01	1.402
2009-05-01	1.481
2009-06-01	1.363
2009-07-01	1.386
2009-08-01	1.314
2009-09-01	1.258
2009-10-01	1.404
2009-11-01	1.253
2009-12-01	1.272
2010-01-01	1.308
2010-02-01	1.295
2010-03-01	1.361
2010-04-01	1.286
2010-05-01	1.257
2010-06-01	1.080
2010-07-01	1.075
2010-08-01	1.023
2010-09-01	0.898
2010-10-01	0.903
2010-11-01	1.161
2010-12-01	1.133
2011-01-01	1.213
2011-02-01	1.241
2011-03-01	1.214
2011-04-01	1.215
2011-05-01	1.118
2011-06-01	1.084
2011-07-01	1.075
2011-08-01	1.023
2011-09-01	0.975
2011-10-01	1.038
2011-11-01	1.062
2011-12-01	0.971
2012-01-01	0.959
2012-02-01	0.962
2012-03-01	0.966
2012-04-01	0.914
2012-05-01	0.846
2012-06-01	0.789
2012-07-01	0.780
2012-08-01	0.800
2012-09-01	0.757
2012-10-01	0.760
2012-11-01	0.713
2012-12-01	0.781
2013-01-01	0.775
2013-02-01	0.669
2013-03-01	0.492
2013-04-01	0.589
2013-05-01	0.879
2013-06-01	0.822
2013-07-01	0.790
2013-08-01	0.708
2013-09-01	0.669
2013-10-01	0.590
2013-11-01	0.605
2013-12-01	0.688
2014-01-01	0.614
2014-02-01	0.586
2014-03-01	0.605
2014-04-01	0.610
2014-05-01	0.566
2014-06-01	0.536
2014-07-01	0.527
2014-08-01	0.488
2014-09-01	0.497
2014-10-01	0.465
2014-11-01	0.420
2014-12-01	0.330
2015-01-01	0.275
2015-02-01	0.330
2015-03-01	0.400
2015-04-01	0.340
2015-05-01	0.390
2015-06-01	0.455
2015-07-01	0.410
2015-08-01	0.380
2015-09-01	0.350
2015-10-01	0.300
2015-11-01	0.300
2015-12-01	0.270
2016-01-01	0.095
2016-02-01	-0.065
2016-03-01	-0.050
2016-04-01	-0.085
2016-05-01	-0.120
2016-06-01	-0.230
2016-07-01	-0.195
2016-08-01	-0.070
2016-09-01	-0.085
2016-10-01	-0.050
2016-11-01	0.020
2016-12-01	0.040
2017-01-01	0.085
2017-02-01	0.050
2017-03-01	0.065
2017-04-01	0.015
2017-05-01	0.040
2017-06-01	0.075
2017-07-01	0.075
2017-08-01	0.010
2017-09-01	0.060
2017-10-01	0.065
2017-11-01	0.035
2017-12-01	0.045
2018-01-01	0.080
2018-02-01	0.045
2018-03-01	0.045
2018-04-01	0.050
2018-05-01	0.030
2018-06-01	0.030
2018-07-01	0.060
2018-08-01	0.110
2018-09-01	0.125
2018-10-01	0.130