1987/01/01	26.52
1987/01/02	11.75
1987/01/03	9.05
1987/01/04	9.05
1987/01/05	8.21
1987/01/06	7.82
1987/01/07	7.82
1987/01/08	7.82
1987/01/09	8.21
1987/01/10	8.60
1987/01/11	9.05
1987/01/12	9.05
1987/01/13	8.60
1987/01/14	6.65
1987/01/15	5.48
1987/01/16	5.48
1987/01/17	5.48
1987/01/18	5.48
1987/01/19	5.48
1987/01/20	5.48
1987/01/21	5.48
1987/01/22	5.48
1987/01/23	5.48
1987/01/24	5.09
1987/01/25	4.70
1987/01/26	4.70
1987/01/27	4.70
1987/01/28	4.12
1987/01/29	4.70
1987/01/30	5.48
1987/01/31	5.48
1987/02/01	5.48
1987/02/02	5.48
1987/02/03	5.48
1987/02/04	5.48
1987/02/05	5.48
1987/02/06	5.87
1987/02/07	5.48
1987/02/08	5.09
1987/02/09	5.09
1987/02/10	5.48
1987/02/11	5.48
1987/02/12	5.48
1987/02/13	5.09
1987/02/14	4.70
1987/02/15	4.41
1987/02/16	3.83
1987/02/17	3.83
1987/02/18	3.54
1987/02/19	3.54
1987/02/20	3.83
1987/02/21	3.83
1987/02/22	3.83
1987/02/23	4.12
1987/02/24	4.12
1987/02/25	4.12
1987/02/26	4.12
1987/02/27	4.12
1987/02/28	3.54
1987/03/01	2.96
1987/03/02	2.96
1987/03/03	2.96
1987/03/04	2.96
1987/03/05	2.96
1987/03/06	3.54
1987/03/07	3.83
1987/03/08	3.54
1987/03/09	3.54
1987/03/10	3.54
1987/03/11	3.54
1987/03/12	3.54
1987/03/13	3.54
1987/03/14	3.54
1987/03/15	3.25
1987/03/16	3.25
1987/03/17	3.25
1987/03/18	2.38
1987/03/19	2.09
1987/03/20	2.09
1987/03/21	2.09
1987/03/22	2.09
1987/03/23	2.09
1987/03/24	2.09
1987/03/25	2.09
1987/03/26	1.80
1987/03/27	1.80
1987/03/28	1.80
1987/03/29	1.80
1987/03/30	1.80
1987/03/31	1.80
1987/04/01	1.62
1987/04/02	1.80
1987/04/03	1.80
1987/04/04	1.80
1987/04/05	1.80
1987/04/06	1.62
1987/04/07	1.62
1987/04/08	1.80
1987/04/09	1.80
1987/04/10	1.80
1987/04/11	1.62
1987/04/12	1.44
1987/04/13	1.44
1987/04/14	1.08
1987/04/15	1.08
1987/04/16	1.08
1987/04/17	1.08
1987/04/18	1.08
1987/04/19	0.72
1987/04/20	0.36
1987/04/21	0.36
1987/04/22	0.36
1987/04/23	0.72
1987/04/24	0.72
1987/04/25	1.08
1987/04/26	1.08
1987/04/27	1.62
1987/04/28	1.80
1987/04/29	2.38
1987/04/30	2.96
1987/05/01	2.96
1987/05/02	2.96
1987/05/03	2.96
1987/05/04	2.96
1987/05/05	2.96
1987/05/06	2.96
1987/05/07	2.96
1987/05/08	2.96
1987/05/09	2.96
1987/05/10	2.96
1987/05/11	2.96
1987/05/12	2.96
1987/05/13	4.12
1987/05/14	4.70
1987/05/15	4.70
1987/05/16	2.96
1987/05/17	2.96
1987/05/18	2.96
1987/05/19	2.96
1987/05/20	3.25
1987/05/21	2.96
1987/05/22	2.38
1987/05/23	0.36
1987/05/24	1.80
1987/05/25	3.83
1987/05/26	4.70
1987/05/27	4.70
1987/05/28	4.70
1987/05/29	4.70
1987/05/30	4.70
1987/05/31	4.70
1987/06/01	1.80
1987/06/02	1.80
1987/06/03	1.80
1987/06/04	1.80
1987/06/05	1.80
1987/06/06	2.38
1987/06/07	2.38
1987/06/08	3.83
1987/06/09	27.78
1987/06/10	12.65
1987/06/11	7.04
1987/06/12	4.70
1987/06/13	4.41
1987/06/14	4.70
1987/06/15	5.09
1987/06/16	6.65
1987/06/17	6.65
1987/06/18	7.04
1987/06/19	6.65
1987/06/20	6.65
1987/06/21	6.26
1987/06/22	7.04
1987/06/23	7.43
1987/06/24	7.43
1987/06/25	7.04
1987/06/26	7.04
1987/06/27	6.26
1987/06/28	6.26
1987/06/29	6.65
1987/06/30	5.48
1987/07/01	2.96
1987/07/02	3.54
1987/07/03	3.25
1987/07/04	3.25
1987/07/05	3.54
1987/07/06	3.83
1987/07/07	7.04
1987/07/08	7.43
1987/07/09	7.04
1987/07/10	6.26
1987/07/11	5.48
1987/07/12	5.48
1987/07/13	4.70
1987/07/14	3.54
1987/07/15	5.87
1987/07/16	6.26
1987/07/17	6.26
1987/07/18	5.87
1987/07/19	5.48
1987/07/20	4.12
1987/07/21	4.12
1987/07/22	4.12
1987/07/23	4.12
1987/07/24	5.48
1987/07/25	15.60
1987/07/26	13.10
1987/07/27	8.60
1987/07/28	7.04
1987/07/29	6.65
1987/07/30	6.26
1987/07/31	7.04
1987/08/01	5.48
1987/08/02	4.12
1987/08/03	4.12
1987/08/04	4.12
1987/08/05	4.12
1987/08/06	4.12
1987/08/07	4.12
1987/08/08	5.09
1987/08/09	9.95
1987/08/10	16.10
1987/08/11	18.10
1987/08/12	18.69
1987/08/13	14.10
1987/08/14	10.85
1987/08/15	7.82
1987/08/16	7.04
1987/08/17	8.60
1987/08/18	47.85
1987/08/19	165.50
1987/08/20	76.33
1987/08/21	80.05
1987/08/22	60.52
1987/08/23	105.42
1987/08/24	288.80
1987/08/25	280.00
1987/08/26	146.32
1987/08/27	91.62
1987/08/28	65.80
1987/08/29	49.70
1987/08/30	41.87
1987/08/31	32.53
1987/09/01	32.53
1987/09/02	24.00
1987/09/03	20.46
1987/09/04	17.60
1987/09/05	15.60
1987/09/06	14.60
1987/09/07	13.60
1987/09/08	18.10
1987/09/09	30.30
1987/09/10	26.52
1987/09/11	20.46
1987/09/12	18.69
1987/09/13	53.40
1987/09/14	42.69
1987/09/15	46.93
1987/09/16	31.79
1987/09/17	22.23
1987/09/18	18.69
1987/09/19	20.46
1987/09/20	33.27
1987/09/21	54.33
1987/09/22	52.48
1987/09/23	39.38
1987/09/24	31.79
1987/09/25	25.26
1987/09/26	80.05
1987/09/27	113.98
1987/09/28	147.91
1987/09/29	113.98
1987/09/30	64.75
1987/10/01	51.55
1987/10/02	45.17
1987/10/03	37.73
1987/10/04	34.76
1987/10/05	31.04
1987/10/06	27.78
1987/10/07	25.89
1987/10/08	24.00
1987/10/09	22.82
1987/10/10	21.64
1987/10/11	20.46
1987/10/12	21.05
1987/10/13	21.05
1987/10/14	19.28
1987/10/15	33.27
1987/10/16	24.00
1987/10/17	19.87
1987/10/18	18.69
1987/10/19	18.10
1987/10/20	17.10
1987/10/21	16.60
1987/10/22	16.60
1987/10/23	15.10
1987/10/24	14.60
1987/10/25	14.60
1987/10/26	14.10
1987/10/27	13.60
1987/10/28	16.60
1987/10/29	15.10
1987/10/30	14.10
1987/10/31	13.60
1987/11/01	13.10
1987/11/02	13.10
1987/11/03	13.10
1987/11/04	14.10
1987/11/05	16.60
1987/11/06	14.60
1987/11/07	14.10
1987/11/08	24.63
1987/11/09	22.23
1987/11/10	19.87
1987/11/11	17.10
1987/11/12	14.60
1987/11/13	14.60
1987/11/14	14.10
1987/11/15	13.10
1987/11/16	13.10
1987/11/17	13.10
1987/11/18	12.65
1987/11/19	12.20
1987/11/20	12.20
1987/11/21	11.30
1987/11/22	11.30
1987/11/23	11.30
1987/11/24	11.75
1987/11/25	11.75
1987/11/26	11.30
1987/11/27	11.30
1987/11/28	11.30
1987/11/29	11.30
1987/11/30	11.30
1987/12/01	10.85
1987/12/02	10.85
1987/12/03	10.40
1987/12/04	10.40
1987/12/05	10.40
1987/12/06	10.40
1987/12/07	10.40
1987/12/08	10.40
1987/12/09	10.40
1987/12/10	10.40
1987/12/11	10.40
1987/12/12	10.40
1987/12/13	9.50
1987/12/14	9.50
1987/12/15	9.05
1987/12/16	9.05
1987/12/17	8.60
1987/12/18	8.60
1987/12/19	8.60
1987/12/20	8.60
1987/12/21	8.60
1987/12/22	8.60
1987/12/23	8.60
1987/12/24	8.60
1987/12/25	8.60
1987/12/26	8.60
1987/12/27	8.60
1987/12/28	8.60
1987/12/29	8.60
1987/12/30	8.21
1987/12/31	8.21
#===========================================
# Number of observations = 365 / 365
# Average = 14.48