1988/01/01	3.05
1988/01/02	2.75
1988/01/03	2.75
1988/01/04	2.75
1988/01/05	2.75
1988/01/06	2.75
1988/01/07	2.60
1988/01/08	2.60
1988/01/09	2.60
1988/01/10	2.75
1988/01/11	2.60
1988/01/12	2.60
1988/01/13	2.60
1988/01/14	2.60
1988/01/15	2.60
1988/01/16	2.45
1988/01/17	2.45
1988/01/18	2.45
1988/01/19	2.45
1988/01/20	2.45
1988/01/21	2.30
1988/01/22	2.60
1988/01/23	2.45
1988/01/24	2.45
1988/01/25	2.45
1988/01/26	2.45
1988/01/27	2.45
1988/01/28	2.30
1988/01/29	2.15
1988/01/30	2.15
1988/01/31	2.45
1988/02/01	2.30
1988/02/02	2.00
1988/02/03	2.15
1988/02/04	1.85
1988/02/05	2.00
1988/02/06	1.85
1988/02/07	2.00
1988/02/08	1.85
1988/02/09	1.85
1988/02/10	1.85
1988/02/11	1.50
1988/02/12	1.60
1988/02/13	1.60
1988/02/14	1.60
1988/02/15	1.60
1988/02/16	1.50
1988/02/17	1.60
1988/02/18	1.50
1988/02/19	1.50
1988/02/20	1.50
1988/02/21	1.70
1988/02/22	1.60
1988/02/23	1.70
1988/02/24	1.60
1988/02/25	1.50
1988/02/26	1.40
1988/02/27	1.30
1988/02/28	1.20
1988/02/29	1.30
1988/03/01	1.30
1988/03/02	1.30
1988/03/03	1.40
1988/03/04	1.50
1988/03/05	1.40
1988/03/06	1.30
1988/03/07	1.20
1988/03/08	1.20
1988/03/09	1.20
1988/03/10	1.10
1988/03/11	1.20
1988/03/12	1.20
1988/03/13	1.10
1988/03/14	1.10
1988/03/15	1.10
1988/03/16	0.90
1988/03/17	1.00
1988/03/18	1.00
1988/03/19	1.10
1988/03/20	1.10
1988/03/21	0.90
1988/03/22	0.80
1988/03/23	0.70
1988/03/24	0.70
1988/03/25	0.70
1988/03/26	0.90
1988/03/27	0.90
1988/03/28	0.90
1988/03/29	0.90
1988/03/30	1.10
1988/03/31	0.90
1988/04/01	1.10
1988/04/02	1.10
1988/04/03	1.00
1988/04/04	1.10
1988/04/05	1.10
1988/04/06	1.00
1988/04/07	1.10
1988/04/08	0.90
1988/04/09	1.00
1988/04/10	1.00
1988/04/11	1.30
1988/04/12	1.30
1988/04/13	1.20
1988/04/14	1.20
1988/04/15	5.15
1988/04/16	2.36
1988/04/17	1.90
1988/04/18	1.80
1988/04/19	5.54
1988/04/20	3.08
1988/04/21	2.12
1988/04/22	1.90
1988/04/23	1.70
1988/04/24	3.98
1988/04/25	2.72
1988/04/26	1.80
1988/04/27	1.50
1988/04/28	1.20
1988/04/29	4.37
1988/04/30	3.85
1988/05/01	2.36
1988/05/02	2.36
1988/05/03	2.24
1988/05/04	3.20
1988/05/05	2.48
1988/05/06	27.93
1988/05/07	8.04
1988/05/08	4.89
1988/05/09	4.37
1988/05/10	3.59
1988/05/11	2.60
1988/05/12	2.96
1988/05/13	2.72
1988/05/14	4.50
1988/05/15	3.46
1988/05/16	9.20
1988/05/17	8.18
1988/05/18	10.26
1988/05/19	5.28
1988/05/20	3.20
1988/05/21	5.28
1988/05/22	2.84
1988/05/23	2.60
1988/05/24	2.36
1988/05/25	2.12
1988/05/26	1.90
1988/05/27	1.90
1988/05/28	1.80
1988/05/29	1.70
1988/05/30	1.80
1988/05/31	1.50
1988/06/01	1.50
1988/06/02	2.36
1988/06/03	13.14
1988/06/04	7.62
1988/06/05	8.32
1988/06/06	31.41
1988/06/07	49.11
1988/06/08	19.12
1988/06/09	19.75
1988/06/10	13.14
1988/06/11	10.42
1988/06/12	8.18
1988/06/13	6.78
1988/06/14	5.80
1988/06/15	5.80
1988/06/16	5.28
1988/06/17	4.63
1988/06/18	5.67
1988/06/19	11.86
1988/06/20	7.76
1988/06/21	7.48
1988/06/22	5.15
1988/06/23	3.85
1988/06/24	3.33
1988/06/25	3.46
1988/06/26	3.33
1988/06/27	3.20
1988/06/28	3.08
1988/06/29	12.18
1988/06/30	12.34
1988/07/01	7.06
1988/07/02	6.36
1988/07/03	6.78
1988/07/04	5.67
1988/07/05	5.15
1988/07/06	5.15
1988/07/07	5.02
1988/07/08	5.28
1988/07/09	5.15
1988/07/10	3.08
1988/07/11	5.67
1988/07/12	4.76
1988/07/13	33.27
1988/07/14	23.34
1988/07/15	14.15
1988/07/16	27.93
1988/07/17	21.72
1988/07/18	15.18
1988/07/19	12.34
1988/07/20	10.10
1988/07/21	10.90
1988/07/22	9.35
1988/07/23	8.60
1988/07/24	7.76
1988/07/25	8.32
1988/07/26	6.50
1988/07/27	5.80
1988/07/28	5.15
1988/07/29	4.89
1988/07/30	5.02
1988/07/31	5.54
1988/08/01	8.32
1988/08/02	6.92
1988/08/03	5.54
1988/08/04	6.78
1988/08/05	5.02
1988/08/06	4.50
1988/08/07	4.50
1988/08/08	4.50
1988/08/09	4.24
1988/08/10	4.50
1988/08/11	4.24
1988/08/12	4.11
1988/08/13	3.85
1988/08/14	3.85
1988/08/15	3.98
1988/08/16	4.50
1988/08/17	6.92
1988/08/18	6.64
1988/08/19	6.64
1988/08/20	13.98
1988/08/21	8.46
1988/08/22	6.08
1988/08/23	6.64
1988/08/24	5.94
1988/08/25	9.05
1988/08/26	22.64
1988/08/27	10.26
1988/08/28	8.75
1988/08/29	9.20
1988/08/30	12.18
1988/08/31	9.65
1988/09/01	7.34
1988/09/02	6.50
1988/09/03	5.41
1988/09/04	4.76
1988/09/05	4.50
1988/09/06	5.28
1988/09/07	5.28
1988/09/08	4.63
1988/09/09	6.08
1988/09/10	5.15
1988/09/11	5.15
1988/09/12	5.28
1988/09/13	6.64
1988/09/14	6.22
1988/09/15	10.42
1988/09/16	6.22
1988/09/17	6.22
1988/09/18	6.08
1988/09/19	11.38
1988/09/20	8.04
1988/09/21	6.36
1988/09/22	5.41
1988/09/23	5.02
1988/09/24	4.76
1988/09/25	5.02
1988/09/26	4.63
1988/09/27	4.63
1988/09/28	4.63
1988/09/29	6.50
1988/09/30	5.94
1988/10/01	5.67
1988/10/02	4.89
1988/10/03	4.76
1988/10/04	6.64
1988/10/05	5.15
1988/10/06	6.50
1988/10/07	5.02
1988/10/08	5.54
1988/10/09	5.02
1988/10/10	9.50
1988/10/11	6.22
1988/10/12	6.36
1988/10/13	9.95
1988/10/14	100.80
1988/10/15	54.09
1988/10/16	31.41
1988/10/17	22.64
1988/10/18	57.96
1988/10/19	80.90
1988/10/20	49.52
1988/10/21	28.49
1988/10/22	23.34
1988/10/23	19.75
1988/10/24	18.70
1988/10/25	16.80
1988/10/26	15.00
1988/10/27	13.81
1988/10/28	12.50
1988/10/29	11.86
1988/10/30	11.06
1988/10/31	10.58
1988/11/01	10.26
1988/11/02	9.80
1988/11/03	9.65
1988/11/04	9.80
1988/11/05	9.35
1988/11/06	8.90
1988/11/07	8.75
1988/11/08	8.60
1988/11/09	8.32
1988/11/10	8.32
1988/11/11	8.04
1988/11/12	8.04
1988/11/13	7.90
1988/11/14	7.90
1988/11/15	7.90
1988/11/16	8.18
1988/11/17	13.81
1988/11/18	43.00
1988/11/19	49.93
1988/11/20	19.75
1988/11/21	16.08
1988/11/22	13.98
1988/11/23	12.82
1988/11/24	11.54
1988/11/25	10.74
1988/11/26	10.10
1988/11/27	9.80
1988/11/28	9.50
1988/11/29	9.50
1988/11/30	9.05
1988/12/01	8.75
1988/12/02	8.60
1988/12/03	8.32
1988/12/04	8.18
1988/12/05	8.04
1988/12/06	8.04
1988/12/07	7.90
1988/12/08	7.76
1988/12/09	7.48
1988/12/10	7.48
1988/12/11	7.34
1988/12/12	7.20
1988/12/13	7.20
1988/12/14	7.20
1988/12/15	7.06
1988/12/16	6.92
1988/12/17	6.92
1988/12/18	6.78
1988/12/19	6.78
1988/12/20	6.64
1988/12/21	6.50
1988/12/22	6.50
1988/12/23	6.36
1988/12/24	6.36
1988/12/25	6.22
1988/12/26	6.08
1988/12/27	6.08
1988/12/28	6.08
1988/12/29	5.94
1988/12/30	5.94
1988/12/31	5.94
#===========================================
# Number of observations = 366 / 366
# Average = 7.15