1987/01/01	5.50
1987/01/02	3.34
1987/01/03	2.70
1987/01/04	2.70
1987/01/05	2.70
1987/01/06	2.54
1987/01/07	2.54
1987/01/08	2.38
1987/01/09	2.54
1987/01/10	2.54
1987/01/11	2.54
1987/01/12	2.38
1987/01/13	2.22
1987/01/14	2.06
1987/01/15	2.22
1987/01/16	2.06
1987/01/17	2.06
1987/01/18	2.22
1987/01/19	2.06
1987/01/20	2.06
1987/01/21	1.90
1987/01/22	2.06
1987/01/23	1.90
1987/01/24	1.79
1987/01/25	1.90
1987/01/26	2.06
1987/01/27	1.79
1987/01/28	1.79
1987/01/29	1.79
1987/01/30	1.79
1987/01/31	1.79
1987/02/01	1.68
1987/02/02	1.90
1987/02/03	1.79
1987/02/04	1.79
1987/02/05	1.79
1987/02/06	1.79
1987/02/07	1.79
1987/02/08	1.79
1987/02/09	2.22
1987/02/10	2.06
1987/02/11	1.90
1987/02/12	1.68
1987/02/13	1.68
1987/02/14	1.68
1987/02/15	1.68
1987/02/16	1.68
1987/02/17	1.68
1987/02/18	1.57
1987/02/19	1.57
1987/02/20	1.46
1987/02/21	1.46
1987/02/22	1.46
1987/02/23	1.46
1987/02/24	1.46
1987/02/25	1.46
1987/02/26	1.35
1987/02/27	1.24
1987/02/28	1.24
1987/03/01	1.24
1987/03/02	1.13
1987/03/03	1.13
1987/03/04	1.46
1987/03/05	1.46
1987/03/06	1.79
1987/03/07	1.57
1987/03/08	1.46
1987/03/09	1.46
1987/03/10	1.35
1987/03/11	1.13
1987/03/12	1.13
1987/03/13	1.24
1987/03/14	1.24
1987/03/15	1.24
1987/03/16	1.24
1987/03/17	1.13
1987/03/18	0.80
1987/03/19	0.91
1987/03/20	0.80
1987/03/21	1.02
1987/03/22	0.91
1987/03/23	0.80
1987/03/24	0.80
1987/03/25	0.91
1987/03/26	0.72
1987/03/27	0.72
1987/03/28	0.72
1987/03/29	0.72
1987/03/30	0.72
1987/03/31	0.80
1987/04/01	0.83
1987/04/02	0.74
1987/04/03	0.74
1987/04/04	0.74
1987/04/05	0.74
1987/04/06	0.74
1987/04/07	0.74
1987/04/08	0.64
1987/04/09	0.64
1987/04/10	0.64
1987/04/11	0.64
1987/04/12	0.64
1987/04/13	0.74
1987/04/14	0.83
1987/04/15	0.55
1987/04/16	0.55
1987/04/17	0.83
1987/04/18	1.06
1987/04/19	0.92
1987/04/20	0.74
1987/04/21	0.74
1987/04/22	1.20
1987/04/23	1.06
1987/04/24	1.06
1987/04/25	0.83
1987/04/26	0.64
1987/04/27	0.55
1987/04/28	1.20
1987/04/29	1.89
1987/04/30	3.40
1987/05/01	1.47
1987/05/02	1.20
1987/05/03	0.83
1987/05/04	1.06
1987/05/05	0.92
1987/05/06	1.33
1987/05/07	1.06
1987/05/08	0.92
1987/05/09	1.06
1987/05/10	1.33
1987/05/11	1.20
1987/05/12	1.75
1987/05/13	2.52
1987/05/14	1.61
1987/05/15	1.47
1987/05/16	1.20
1987/05/17	1.20
1987/05/18	0.92
1987/05/19	0.74
1987/05/20	0.64
1987/05/21	0.64
1987/05/22	0.46
1987/05/23	1.06
1987/05/24	0.55
1987/05/25	0.46
1987/05/26	0.55
1987/05/27	1.20
1987/05/28	0.64
1987/05/29	0.64
1987/05/30	2.96
1987/05/31	0.92
1987/06/01	4.06
1987/06/02	1.89
1987/06/03	2.74
1987/06/04	1.47
1987/06/05	1.06
1987/06/06	6.18
1987/06/07	12.17
1987/06/08	6.18
1987/06/09	8.38
1987/06/10	4.78
1987/06/11	4.60
1987/06/12	4.43
1987/06/13	3.38
1987/06/14	3.05
1987/06/15	3.20
1987/06/16	4.25
1987/06/17	5.36
1987/06/18	3.90
1987/06/19	7.69
1987/06/20	4.95
1987/06/21	4.78
1987/06/22	4.43
1987/06/23	3.90
1987/06/24	2.75
1987/06/25	2.30
1987/06/26	2.30
1987/06/27	2.45
1987/06/28	3.90
1987/06/29	2.90
1987/06/30	2.90
1987/07/01	2.60
1987/07/02	2.30
1987/07/03	2.15
1987/07/04	1.85
1987/07/05	1.85
1987/07/06	1.85
1987/07/07	1.85
1987/07/08	1.85
1987/07/09	2.15
1987/07/10	1.85
1987/07/11	2.00
1987/07/12	2.00
1987/07/13	1.85
1987/07/14	1.85
1987/07/15	1.70
1987/07/16	1.85
1987/07/17	2.00
1987/07/18	2.00
1987/07/19	2.00
1987/07/20	2.00
1987/07/21	1.85
1987/07/22	2.00
1987/07/23	1.85
1987/07/24	2.30
1987/07/25	3.73
1987/07/26	2.75
1987/07/27	2.45
1987/07/28	2.15
1987/07/29	2.15
1987/07/30	2.00
1987/07/31	2.00
1987/08/01	1.85
1987/08/02	2.30
1987/08/03	2.15
1987/08/04	1.85
1987/08/05	1.85
1987/08/06	2.00
1987/08/07	2.75
1987/08/08	2.00
1987/08/09	3.20
1987/08/10	3.38
1987/08/11	4.25
1987/08/12	11.38
1987/08/13	4.43
1987/08/14	3.20
1987/08/15	3.05
1987/08/16	3.20
1987/08/17	5.36
1987/08/18	17.50
1987/08/19	16.34
1987/08/20	7.46
1987/08/21	6.18
1987/08/22	4.78
1987/08/23	8.61
1987/08/24	36.86
1987/08/25	19.24
1987/08/26	15.18
1987/08/27	9.30
1987/08/28	9.07
1987/08/29	6.80
1987/08/30	5.98
1987/08/31	5.16
1987/09/01	4.78
1987/09/02	4.78
1987/09/03	4.60
1987/09/04	4.08
1987/09/05	3.73
1987/09/06	4.95
1987/09/07	5.16
1987/09/08	11.90
1987/09/09	5.98
1987/09/10	8.61
1987/09/11	14.89
1987/09/12	8.38
1987/09/13	7.69
1987/09/14	20.71
1987/09/15	8.61
1987/09/16	6.80
1987/09/17	5.36
1987/09/18	4.95
1987/09/19	16.05
1987/09/20	22.57
1987/09/21	25.05
1987/09/22	12.44
1987/09/23	11.38
1987/09/24	7.46
1987/09/25	5.57
1987/09/26	16.05
1987/09/27	7.69
1987/09/28	21.64
1987/09/29	18.08
1987/09/30	11.38
1987/10/01	17.21
1987/10/02	10.86
1987/10/03	9.56
1987/10/04	15.76
1987/10/05	10.08
1987/10/06	7.69
1987/10/07	7.92
1987/10/08	7.23
1987/10/09	19.53
1987/10/10	7.46
1987/10/11	8.84
1987/10/12	7.00
1987/10/13	6.39
1987/10/14	6.18
1987/10/15	5.36
1987/10/16	5.36
1987/10/17	4.95
1987/10/18	5.36
1987/10/19	5.16
1987/10/20	5.77
1987/10/21	5.77
1987/10/22	8.15
1987/10/23	5.98
1987/10/24	5.57
1987/10/25	5.16
1987/10/26	4.78
1987/10/27	4.60
1987/10/28	4.95
1987/10/29	4.60
1987/10/30	4.60
1987/10/31	4.60
1987/11/01	4.43
1987/11/02	4.25
1987/11/03	28.46
1987/11/04	10.86
1987/11/05	6.80
1987/11/06	5.57
1987/11/07	5.57
1987/11/08	33.56
1987/11/09	42.22
1987/11/10	18.66
1987/11/11	14.33
1987/11/12	14.60
1987/11/13	17.50
1987/11/14	11.38
1987/11/15	12.98
1987/11/16	10.08
1987/11/17	8.38
1987/11/18	8.61
1987/11/19	11.90
1987/11/20	8.61
1987/11/21	7.23
1987/11/22	6.59
1987/11/23	6.18
1987/11/24	5.98
1987/11/25	5.77
1987/11/26	5.36
1987/11/27	5.16
1987/11/28	4.95
1987/11/29	4.95
1987/11/30	4.78
1987/12/01	4.95
1987/12/02	4.78
1987/12/03	4.78
1987/12/04	4.60
1987/12/05	4.60
1987/12/06	4.60
1987/12/07	4.43
1987/12/08	4.25
1987/12/09	4.25
1987/12/10	4.25
1987/12/11	4.25
1987/12/12	4.08
1987/12/13	4.08
1987/12/14	4.08
1987/12/15	3.73
1987/12/16	3.73
1987/12/17	3.73
1987/12/18	3.73
1987/12/19	3.73
1987/12/20	3.73
1987/12/21	3.55
1987/12/22	3.55
1987/12/23	3.38
1987/12/24	3.38
1987/12/25	3.20
1987/12/26	3.20
1987/12/27	3.20
1987/12/28	3.20
1987/12/29	3.05
1987/12/30	2.90
1987/12/31	2.90
#===========================================
# Number of observations = 365 / 365
# Average = 4.47