Month	Percent
1986-05-01	27.460
1986-06-01	22.750
1986-07-01	34.320
1986-08-01	51.440
1986-09-01	39.920
1986-10-01	38.650
1986-11-01	39.470
1986-12-01	39.090
1987-01-01	33.120
1987-02-01	41.410
1987-03-01	30.180
1987-04-01	40.640
1987-05-01	44.220
1987-06-01	34.350
1987-07-01	35.910
1987-08-01	32.170
1987-09-01	44.210
1987-10-01	49.340
1987-11-01	49.920
1987-12-01	42.360
1988-01-01	52.660
1988-02-01	49.840
1988-03-01	62.450
1988-04-01	70.000
1988-05-01	71.830
1988-06-01	63.100
1988-07-01	61.090
1988-08-01	62.760
1988-09-01	64.140
1988-10-01	80.080
1988-11-01	42.750
1988-12-01	46.770
1989-01-01	44.340
1989-02-01	33.720
1989-03-01	39.970
1989-04-01	37.080
1989-05-01	64.180
1989-06-01	45.530
1989-07-01	49.390
1989-08-01	46.060
1989-09-01	34.690
1989-10-01	21.630
1989-11-01	44.500
1989-12-01	26.870
1990-01-01	32.000
1990-02-01	42.410
1990-03-01	42.580
1990-04-01	47.870
1990-05-01	56.920
1990-06-01	61.640
1990-07-01	54.480
1990-08-01	54.400
1990-09-01	54.990
1990-10-01	53.260
1990-11-01	59.590
1990-12-01	62.720
1991-01-01	63.480
1991-02-01	67.480
1991-03-01	104.270
1991-04-01	108.100
1991-05-01	80.780
1991-06-01	72.050
1991-07-01	66.160
1991-08-01	64.480
1991-09-01	62.760
1991-10-01	61.820
1991-11-01	61.690
1991-12-01	59.870
1992-01-01	60.390
1992-02-01	63.030
1992-03-01	63.760
1992-04-01	65.830
1992-05-01	67.630
1992-06-01	68.490
1992-07-01	66.720
1992-08-01	64.910
1992-09-01	63.310
1992-10-01	65.730
1992-11-01	66.680
1992-12-01	67.770
1993-01-01	65.190
1993-02-01	59.300
1993-03-01	66.940
1993-04-01	62.600
1993-05-01	62.270
1993-06-01	59.470
1993-07-01	59.440
1993-08-01	58.070
1993-09-01	57.480
1993-10-01	57.930
1993-11-01	75.640
1993-12-01	69.630
1994-01-01	91.140
1994-02-01	192.720
1994-03-01	350.530
1994-04-01	258.420
1994-05-01	262.840
1994-06-01	53.940
1994-07-01	43.400
1994-08-01	87.430
1994-09-01	69.140
1994-10-01	71.010
1994-11-01	65.040
1994-12-01	92.040
1995-01-01	87.410
1995-02-01	66.980
1995-03-01	66.000
1995-04-01	68.750
1995-05-01	76.630
1995-06-01	57.770
1995-07-01	48.160
1995-08-01	59.010
1995-09-01	73.150
1995-10-01	75.520
1995-11-01	81.820
1995-12-01	106.310
1996-01-01	95.220
1996-02-01	83.260
1996-03-01	89.940
1996-04-01	76.390
1996-05-01	62.660
1996-06-01	65.300
1996-07-01	74.590
1996-08-01	68.080
1996-09-01	73.870
1996-10-01	74.760
1996-11-01	76.820
1996-12-01	73.990
1997-01-01	61.480
1997-02-01	66.290
1997-03-01	65.120
1997-04-01	68.520
1997-05-01	66.300
1997-06-01	70.530
1997-07-01	69.000
1997-08-01	73.930
1997-09-01	75.230
1997-10-01	71.570
1997-11-01	77.870
1997-12-01	78.040
1998-01-01	72.780
1998-02-01	82.120
1998-03-01	80.600
1998-04-01	73.510
1998-05-01	74.190
1998-06-01	65.750
1998-07-01	54.810
1998-08-01	76.410
1998-09-01	78.850
1998-10-01	78.230
1998-11-01	78.940
1998-12-01	78.970
1999-01-01	78.880
1999-02-01	77.380
1999-03-01	76.320
1999-04-01	76.960
1999-05-01	76.960
1999-06-01	76.910
1999-07-01	71.020
1999-08-01	71.100
1999-09-01	67.510
1999-10-01	69.490
1999-11-01	69.840
1999-12-01	69.970
2000-01-01	36.790
2000-02-01	50.060
2000-03-01	39.200
2000-04-01	36.680
2000-05-01	41.160
2000-06-01	43.050
2000-07-01	26.560
2000-08-01	42.580
2000-09-01	47.440
2000-10-01	38.530
2000-11-01	95.430
2000-12-01	183.200
2001-01-01	42.700
2001-02-01	400.270
2001-03-01	81.190
2001-04-01	80.990
2001-05-01	71.460
2001-06-01	63.000
2001-07-01	65.340
2001-08-01	62.540
2001-09-01	59.030
2001-10-01	58.930
2001-11-01	59.000
2001-12-01	59.000
2002-01-01	59.000
2002-02-01	58.300
2002-03-01	54.730
2002-04-01	51.310
2002-05-01	48.000
2002-06-01	48.000
2002-07-01	48.030
2002-08-01	46.160
2002-09-01	46.000
2002-10-01	46.000
2002-11-01	44.530
2002-12-01	44.000
2003-01-01	44.000
2003-02-01	44.000
2003-03-01	44.000
2003-04-01	43.550
2003-05-01	41.000
2003-06-01	38.230
2003-07-01	36.540
2003-08-01	32.430
2003-09-01	30.660
2003-10-01	27.470
2003-11-01	26.000
2003-12-01	26.000
2004-01-01	26.000
2004-02-01	24.000
2004-03-01	22.980
2004-04-01	22.000
2004-05-01	22.000
2004-06-01	22.000
2004-07-01	22.000
2004-08-01	22.000
2004-09-01	20.440
2004-10-01	20.000
2004-11-01	20.000
2004-12-01	18.690
2005-01-01	17.480
2005-02-01	16.700
2005-03-01	15.570
2005-04-01	15.130
2005-05-01	14.730
2005-06-01	14.300
2005-07-01	14.250
2005-08-01	14.250
2005-09-01	14.250
2005-10-01	14.070
2005-11-01	13.780
2005-12-01	13.570
2006-01-01	13.500
2006-02-01	13.500
2006-03-01	13.500
2006-04-01	13.490
2006-05-01	13.250
2006-06-01	15.000
2006-07-01	17.340
2006-08-01	17.500
2006-09-01	17.500
2006-10-01	17.500
2006-11-01	17.500
2006-12-01	17.500
2007-01-01	17.500
2007-02-01	17.500
2007-03-01	17.500
2007-04-01	17.500
2007-05-01	17.500
2007-06-01	17.500
2007-07-01	17.500
2007-08-01	17.500
2007-09-01	17.360
2007-10-01	17.030
2007-11-01	16.500
2007-12-01	15.960
2008-01-01	15.660
2008-02-01	15.390
2008-03-01	15.250
2008-04-01	15.250
2008-05-01	15.460
2008-06-01	16.000
2008-07-01	16.480
2008-08-01	16.750
2008-09-01	16.750
2008-10-01	16.750
2008-11-01	16.570
2008-12-01	15.630
2009-01-01	14.120
2009-02-01	12.610
2009-03-01	11.030
2009-04-01	10.260
2009-05-01	9.470
2009-06-01	9.030
2009-07-01	8.520
2009-08-01	8.030
2009-09-01	7.580
2009-10-01	7.012
2009-11-01	6.680
2009-12-01	6.500
2010-01-01	6.500
2010-02-01	6.500
2010-03-01	6.500
2010-04-01	6.500
2010-05-01	6.500
2010-06-01	6.500
2010-07-01	6.500
2010-08-01	6.500
2010-09-01	6.380
2010-10-01	6.000
2010-11-01	3.750
2010-12-01	1.630
2011-01-01	1.500
2011-02-01	1.500
2011-03-01	1.500
2011-04-01	1.500
2011-05-01	1.500
2011-06-01	1.500
2011-07-01	1.500
2011-08-01	5.000
2011-09-01	5.000
2011-10-01	5.330
2011-11-01	5.350
2011-12-01	5.000
2012-01-01	5.000
2012-02-01	5.000
2012-03-01	5.000
2012-04-01	5.000
2012-05-01	5.000
2012-06-01	5.000
2012-07-01	5.000
2012-08-01	5.000
2012-09-01	5.000
2012-10-01	5.000
2012-11-01	5.000
2012-12-01	5.000
2013-01-01	4.750
2013-02-01	4.500
2013-03-01	4.500
2013-04-01	4.000
2013-05-01	3.500
2013-06-01	3.500
2013-07-01	3.500
2013-08-01	3.500
2013-09-01	3.500
2013-10-01	3.500
2013-11-01	3.500
2013-12-01	3.500
2014-01-01	8.000
2014-02-01	8.000
2014-03-01	8.000
2014-04-01	8.000
2014-05-01	8.000
2014-06-01	8.000
2014-07-01	7.500
2014-08-01	7.500
2014-09-01	7.500
2014-10-01	7.500
2014-11-01	7.500
2014-12-01	7.500
2015-01-01	7.500
2015-02-01	7.250
2015-03-01	7.250
2015-04-01	7.250
2015-05-01	7.250
2015-06-01	7.250
2015-07-01	7.250
2015-08-01	7.250
2015-09-01	7.250
2015-10-01	7.250
2015-11-01	7.250
2015-12-01	7.250
2016-01-01	7.250
2016-02-01	7.250
2016-03-01	7.250
2016-04-01	7.250
2016-05-01	7.250
2016-06-01	7.250
2016-07-01	7.250
2016-08-01	7.250
2016-09-01	7.250
2016-10-01	7.250
2016-11-01	7.250
2016-12-01	7.250
2017-01-01	7.250
2017-02-01	7.250
2017-03-01	7.250
2017-04-01	7.250
2017-05-01	7.250
2017-06-01	7.250
2017-07-01	7.250
2017-08-01	7.250
2017-09-01	7.250
2017-10-01	7.250
2017-11-01	7.250
2017-12-01	7.250
2018-01-01	7.250
2018-02-01	7.250
2018-03-01	7.250
2018-04-01	7.250
2018-05-01	7.250
2018-06-01	16.250
2018-07-01	16.250