Monthly Percent
1987-11-01 41.300
1987-12-01 41.300
1988-01-01 41.300
1988-02-01 36.600
1988-03-01 35.100
1988-04-01 35.100
1988-05-01 35.100
1988-06-01 40.300
1988-07-01 43.100
1988-08-01 37.300
1988-09-01 25.400
1988-10-01 16.500
1988-11-01 15.300
1988-12-01 11.200
1989-01-01 11.200
1989-02-01 14.700
1989-03-01 26.700
1989-04-01 30.100
1989-05-01 30.100
1989-06-01 33.700
1989-07-01 33.700
1989-08-01 30.800
1989-09-01 29.500
1989-10-01 29.500
1989-11-01 32.300
1989-12-01 32.300
1990-01-01 25.400
1990-02-01 20.200
1990-03-01 17.100
1990-04-01 14.100
1990-05-01 14.100
1990-06-01 14.100
1990-07-01 14.100
1990-08-01 14.100
1990-09-01 11.200
1990-10-01 11.200
1990-11-01 11.200
1990-12-01 11.200
1991-01-01 11.800
1991-02-01 11.800
1991-03-01 11.800
1991-04-01 11.800
1991-05-01 15.900
1991-06-01 19.000
1991-07-01 15.900
1991-08-01 15.900
1991-09-01 17.100
1991-10-01 16.500
1991-11-01 14.700
1991-12-01 13.500
1992-01-01 13.500
1992-02-01 12.400
1992-03-01 12.400
1992-04-01 10.100
1992-05-01 10.100
1992-06-01 9.800
1992-07-01 9.800
1992-08-01 9.800
1992-09-01 8.700
1992-10-01 8.100
1992-11-01 9.410
1992-12-01 11.860
1993-01-01 11.500
1993-02-01 11.000
1993-03-01 10.100
1993-04-01 9.000
1993-05-01 8.900
1993-06-01 8.700
1993-07-01 9.400
1993-08-01 8.100
1993-09-01 8.900
1993-10-01 8.100
1993-11-01 6.300
1993-12-01 5.400
1994-01-01 5.200
1994-02-01 5.100
1994-03-01 4.400
1994-04-01 4.500
1994-05-01 4.500
1994-06-01 4.600
1994-07-01 4.700
1994-08-01 4.900
1994-09-01 4.900
1994-10-01 5.100
1994-11-01 5.300
1994-12-01 5.500
1995-01-01 6.350
1995-02-01 6.700
1995-03-01 6.900
1995-04-01 7.100
1995-05-01 7.100
1995-06-01 7.100
1995-07-01 6.900
1995-08-01 7.000
1995-09-01 7.500
1995-10-01 7.000
1995-11-01 7.100
1995-12-01 7.300
1996-01-01 7.600
1996-02-01 7.600
1996-03-01 7.500
1996-04-01 6.700
1996-05-01 6.500
1996-06-01 6.500
1996-07-01 6.500
1996-08-01 6.600
1996-09-01 7.100
1996-10-01 7.100
1996-11-01 7.100
1996-12-01 7.100
1997-01-01 7.100
1997-02-01 7.100
1997-03-01 7.200
1997-04-01 7.100
1997-05-01 7.000
1997-06-01 7.000
1997-07-01 7.100
1997-08-01 6.900
1997-09-01 6.900
1997-10-01 6.900
1997-11-01 7.300
1997-12-01 7.200
1998-01-01 7.300
1998-02-01 7.400
1998-03-01 7.300
1998-04-01 7.300
1998-05-01 7.300
1998-06-01 7.300
1998-07-01 7.300
1998-08-01 7.207
1998-09-01 7.494
1998-10-01 7.593
1998-11-01 7.829
1998-12-01 8.171
1999-01-01 7.841
1999-02-01 7.983
1999-03-01 8.743
1999-04-01 8.782
1999-05-01 8.615
1999-06-01 8.909
1999-07-01 9.131
1999-08-01 9.145
1999-09-01 9.620
1999-10-01 10.637
1999-11-01 11.155
1999-12-01 11.447
2000-01-01 10.331
2000-02-01 10.642
2000-03-01 10.708
2000-04-01 10.776
2000-05-01 10.961
2000-06-01 11.240
2000-07-01 11.744
2000-08-01 11.842
2000-09-01 11.276
2000-10-01 11.288
2000-11-01 11.783
2000-12-01 11.956
2001-01-01 11.693
2001-02-01 11.692
2001-03-01 11.743
2001-04-01 12.241
2001-05-01 12.246
2001-06-01 12.289
2001-07-01 12.387
2001-08-01 11.961
2001-09-01 11.695
2001-10-01 11.864
2001-11-01 11.583
2001-12-01 12.456
2002-01-01 12.568
2002-02-01 12.289
2002-03-01 11.472
2002-04-01 10.315
2002-05-01 9.596
2002-06-01 8.974
2002-07-01 8.399
2002-08-01 7.750
2002-09-01 7.214
2002-10-01 6.646
2002-11-01 6.350
2002-12-01 6.119
2003-01-01 6.284
2003-02-01 5.661
2003-03-01 5.394
2003-04-01 5.272
2003-05-01 5.270
2003-06-01 5.270
2003-07-01 5.271
2003-08-01 5.245
2003-09-01 5.232
2003-10-01 5.095
2003-11-01 5.101
2003-12-01 5.104
2004-01-01 5.191
2004-02-01 5.167
2004-03-01 5.327
2004-04-01 5.373
2004-05-01 5.616
2004-06-01 6.113
2004-07-01 6.467
2004-08-01 6.473
2004-09-01 6.698
2004-10-01 7.030
2004-11-01 7.534
2004-12-01 8.472
2005-01-01 8.561
2005-02-01 8.691
2005-03-01 9.072
2005-04-01 9.198
2005-05-01 9.200
2005-06-01 9.286
2005-07-01 9.300
2005-08-01 9.300
2005-09-01 9.441
2005-10-01 10.038
2005-11-01 10.106
2005-12-01 10.112
2006-01-01 10.190
2006-02-01 10.333
2006-03-01 10.616
2006-04-01 11.474
2006-05-01 11.782
2006-06-01 12.266
2006-07-01 12.582
2006-08-01 13.009
2006-09-01 13.369
2006-10-01 13.860
2006-11-01 14.168
2006-12-01 14.601
2007-01-01 15.145
2007-02-01 15.183
2007-03-01 14.287
2007-04-01 13.933
2007-05-01 13.949
2007-06-01 13.887
2007-07-01 14.125
2007-08-01 14.250
2007-09-01 14.246
2007-10-01 13.947
2007-11-01 14.254
2007-12-01 14.282
2008-01-01 14.059
2008-02-01 13.717
2008-03-01 14.272
2008-04-01 15.600
2008-05-01 15.880
2008-06-01 15.950
2008-07-01 16.058
2008-08-01 16.100
2008-09-01 16.100
2008-10-01 15.170
2008-11-01 18.570
2008-12-01 18.410
2009-01-01 18.410
2009-02-01 18.300
2009-03-01 17.170
2009-04-01 14.540
2009-05-01 8.790
2009-06-01 7.940
2009-07-01 8.120
2009-08-01 7.980
2009-09-01 8.400
2009-10-01 8.490
2009-11-01 8.700
2009-12-01 8.540
2010-01-01 8.380
2010-02-01 8.250
2010-03-01 8.130
2010-04-01 8.000
2010-05-01 7.550
2010-06-01 7.350
2010-07-01 7.050
2010-08-01 6.600
2010-09-01 5.710
2010-10-01 5.300
2010-11-01 4.850
2010-12-01 4.300
2011-01-01 4.120
2011-02-01 4.000
2011-03-01 4.000
2011-04-01 4.000
2011-05-01 4.000
2011-06-01 4.000
2011-07-01 4.000
2011-08-01 4.270
2011-09-01 4.560
2011-10-01 4.600
2011-11-01 4.730
2011-12-01 4.800
2012-01-01 4.800
2012-02-01 4.800
2012-03-01 4.870
2012-04-01 5.100
2012-05-01 5.400
2012-06-01 5.660
2012-07-01 5.750
2012-08-01 5.750
2012-09-01 5.750
2012-10-01 6.040
2012-11-01 6.100
2012-12-01 6.140
2013-01-01 6.150
2013-02-01 6.150
2013-03-01 6.160
2013-04-01 6.200
2013-05-01 6.200
2013-06-01 6.200
2013-07-01 6.200
2013-08-01 6.200
2013-09-01 6.200
2013-10-01 6.200
2013-11-01 6.200
2013-12-01 6.200
2014-01-01 6.200
2014-02-01 6.200
2014-03-01 6.170
2014-04-01 6.090
2014-05-01 6.020
2014-06-01 6.080
2014-07-01 6.100
2014-08-01 6.100
2014-09-01 6.100
2014-10-01 6.100
2014-11-01 5.910
2014-12-01 5.560
2015-01-01 5.400
2015-02-01 5.370
2015-03-01 5.350
2015-04-01 5.350
2015-05-01 5.370
2015-06-01 5.770
2015-07-01 5.950
2015-08-01 6.160
2015-09-01 6.400
2015-10-01 6.400
2015-11-01 6.580
2015-12-01 6.600
2016-01-01 6.550
2016-02-01 6.550
2016-03-01 6.550
2016-04-01 6.550
2016-05-01 6.550
2016-06-01 6.550
2016-07-01 6.550
2016-08-01 6.050
2016-09-01 5.950
2016-10-01 6.050
2016-11-01 5.850
2016-12-01 5.600
2017-01-01 5.500
2017-02-01 5.500
2017-03-01 5.500
2017-04-01 5.480
2017-05-01 5.230
2017-06-01 4.900
2017-07-01 4.900
2017-08-01 4.900
2017-09-01 4.900
2017-10-01 4.650
2017-11-01 4.650
2017-12-01 4.650
2018-01-01 4.650
2018-02-01 4.650
2018-03-01 4.650
2018-04-01 4.680
2018-05-01 4.680
2018-06-01 4.700
2018-07-01 4.700
2018-08-01 4.700
2018-09-01 4.700
2018-10-01 4.700