1981/01/01	0.38
1981/01/02	0.38
1981/01/03	0.38
1981/01/04	0.38
1981/01/05	0.38
1981/01/06	0.38
1981/01/07	0.38
1981/01/08	0.38
1981/01/09	0.38
1981/01/10	0.38
1981/01/11	0.34
1981/01/12	0.34
1981/01/13	0.34
1981/01/14	0.30
1981/01/15	0.30
1981/01/16	0.30
1981/01/17	0.30
1981/01/18	0.30
1981/01/19	0.30
1981/01/20	0.30
1981/01/21	0.30
1981/01/22	0.30
1981/01/23	0.30
1981/01/24	0.30
1981/01/25	0.30
1981/01/26	0.30
1981/01/27	0.30
1981/01/28	0.26
1981/01/29	0.26
1981/01/30	0.26
1981/01/31	0.26
1981/02/01	0.22
1981/02/02	0.22
1981/02/03	0.22
1981/02/04	0.18
1981/02/05	0.18
1981/02/06	0.18
1981/02/07	0.18
1981/02/08	0.14
1981/02/09	0.14
1981/02/10	0.14
1981/02/11	0.10
1981/02/12	0.10
1981/02/13	0.08
1981/02/14	0.08
1981/02/15	0.06
1981/02/16	0.06
1981/02/17	0.06
1981/02/18	0.04
1981/02/19	0.04
1981/02/20	0.04
1981/02/21	0.04
1981/02/22	0.04
1981/02/23	0.02
1981/02/24	0.02
1981/02/25	0.02
1981/02/26	0.02
1981/02/27	0.02
1981/02/28	0.02
1981/03/01	0
1981/03/02	0
1981/03/03	0
1981/03/04	0
1981/03/05	0
1981/03/06	0
1981/03/07	0
1981/03/08	0
1981/03/09	0
1981/03/10	0
1981/03/11	0
1981/03/12	0
1981/03/13	0
1981/03/14	0
1981/03/15	0
1981/03/16	0
1981/03/17	0
1981/03/18	0
1981/03/19	0
1981/03/20	0
1981/03/21	0
1981/03/22	0
1981/03/23	0
1981/03/24	0
1981/03/25	0
1981/03/26	0
1981/03/27	0
1981/03/28	0
1981/03/29	0
1981/03/30	0
1981/03/31	0
1981/04/01	0
1981/04/02	0
1981/04/03	0
1981/04/04	0
1981/04/05	0
1981/04/06	0
1981/04/07	0
1981/04/08	0
1981/04/09	0
1981/04/10	0
1981/04/11	0
1981/04/12	0
1981/04/13	0
1981/04/14	0
1981/04/15	0
1981/04/16	0
1981/04/17	0
1981/04/18	0
1981/04/19	0
1981/04/20	0
1981/04/21	0
1981/04/22	0
1981/04/23	0
1981/04/24	0
1981/04/25	0
1981/04/26	0
1981/04/27	0.08
1981/04/28	2.30
1981/04/29	1.20
1981/04/30	0.88
1981/05/01	0.80
1981/05/02	0.80
1981/05/03	0.80
1981/05/04	0.80
1981/05/05	0.80
1981/05/06	1.76
1981/05/07	1.12
1981/05/08	0.80
1981/05/09	0.72
1981/05/10	0.88
1981/05/11	0.64
1981/05/12	0.40
1981/05/13	0.40
1981/05/14	0.32
1981/05/15	0.08
1981/05/16	0.08
1981/05/17	0.08
1981/05/18	0.08
1981/05/19	0.08
1981/05/20	1.44
1981/05/21	1.68
1981/05/22	4.56
1981/05/23	3.60
1981/05/24	38.64
1981/05/25	11.43
1981/05/26	4.98
1981/05/27	3.30
1981/05/28	3.00
1981/05/29	3.60
1981/05/30	3.70
1981/05/31	2.60
1981/06/01	2.20
1981/06/02	1.84
1981/06/03	9.00
1981/06/04	5.26
1981/06/05	3.30
1981/06/06	2.40
1981/06/07	1.92
1981/06/08	1.68
1981/06/09	1.52
1981/06/10	1.36
1981/06/11	1.20
1981/06/12	1.20
1981/06/13	1.28
1981/06/14	1.20
1981/06/15	1.36
1981/06/16	1.36
1981/06/17	1.84
1981/06/18	1.52
1981/06/19	1.44
1981/06/20	1.28
1981/06/21	1.36
1981/06/22	1.36
1981/06/23	1.28
1981/06/24	1.20
1981/06/25	1.20
1981/06/26	1.36
1981/06/27	1.20
1981/06/28	1.44
1981/06/29	2.40
1981/06/30	1.84
1981/07/01	1.60
1981/07/02	1.36
1981/07/03	1.12
1981/07/04	0.96
1981/07/05	0.88
1981/07/06	0.88
1981/07/07	0.88
1981/07/08	1.04
1981/07/09	1.04
1981/07/10	1.04
1981/07/11	0.96
1981/07/12	0.88
1981/07/13	0.96
1981/07/14	1.04
1981/07/15	0.96
1981/07/16	1.04
1981/07/17	5.26
1981/07/18	5.40
1981/07/19	3.60
1981/07/20	3.00
1981/07/21	7.18
1981/07/22	5.72
1981/07/23	8.08
1981/07/24	11.43
1981/07/25	11.22
1981/07/26	10.60
1981/07/27	12.69
1981/07/28	5.40
1981/07/29	3.70
1981/07/30	3.00
1981/07/31	2.60
1981/08/01	2.20
1981/08/02	3.60
1981/08/03	2.30
1981/08/04	1.92
1981/08/05	5.56
1981/08/06	14.97
1981/08/07	10.20
1981/08/08	7.18
1981/08/09	4.98
1981/08/10	3.50
1981/08/11	3.40
1981/08/12	2.90
1981/08/13	2.50
1981/08/14	2.20
1981/08/15	2.00
1981/08/16	1.84
1981/08/17	1.68
1981/08/18	1.44
1981/08/19	1.36
1981/08/20	1.52
1981/08/21	1.52
1981/08/22	1.44
1981/08/23	1.52
1981/08/24	1.44
1981/08/25	1.36
1981/08/26	1.12
1981/08/27	1.12
1981/08/28	1.04
1981/08/29	1.04
1981/08/30	1.04
1981/08/31	1.04
1981/09/01	1.04
1981/09/02	0.88
1981/09/03	0.88
1981/09/04	0.88
1981/09/05	0.88
1981/09/06	0.80
1981/09/07	0.96
1981/09/08	0.88
1981/09/09	1.04
1981/09/10	1.04
1981/09/11	1.12
1981/09/12	1.84
1981/09/13	1.92
1981/09/14	1.52
1981/09/15	1.36
1981/09/16	1.20
1981/09/17	1.04
1981/09/18	0.88
1981/09/19	0.88
1981/09/20	0.96
1981/09/21	1.04
1981/09/22	0.88
1981/09/23	0.88
1981/09/24	1.12
1981/09/25	1.44
1981/09/26	2.00
1981/09/27	1.68
1981/09/28	1.36
1981/09/29	1.20
1981/09/30	1.12
1981/10/01	0.96
1981/10/02	0.88
1981/10/03	0.96
1981/10/04	0.96
1981/10/05	0.88
1981/10/06	0.96
1981/10/07	1.28
1981/10/08	2.00
1981/10/09	4.42
1981/10/10	13.36
1981/10/11	9.60
1981/10/12	6.52
1981/10/13	3.40
1981/10/14	2.80
1981/10/15	2.50
1981/10/16	2.20
1981/10/17	2.80
1981/10/18	9.40
1981/10/19	11.01
1981/10/20	8.26
1981/10/21	6.20
1981/10/22	4.28
1981/10/23	3.40
1981/10/24	2.90
1981/10/25	3.10
1981/10/26	2.80
1981/10/27	2.40
1981/10/28	2.20
1981/10/29	1.92
1981/10/30	1.76
1981/10/31	1.60
1981/11/01	1.60
1981/11/02	1.52
1981/11/03	1.36
1981/11/04	1.28
1981/11/05	1.28
1981/11/06	1.44
1981/11/07	1.52
1981/11/08	1.60
1981/11/09	1.68
1981/11/10	1.68
1981/11/11	1.60
1981/11/12	1.52
1981/11/13	1.44
1981/11/14	1.44
1981/11/15	1.52
1981/11/16	1.84
1981/11/17	3.60
1981/11/18	8.26
1981/11/19	9.60
1981/11/20	6.68
1981/11/21	4.42
1981/11/22	3.50
1981/11/23	2.90
1981/11/24	2.60
1981/11/25	2.40
1981/11/26	2.20
1981/11/27	1.92
1981/11/28	1.68
1981/11/29	1.76
1981/11/30	1.68
1981/12/01	1.60
1981/12/02	1.52
1981/12/03	1.52
1981/12/04	1.44
1981/12/05	1.36
1981/12/06	1.36
1981/12/07	1.28
1981/12/08	1.20
1981/12/09	1.12
1981/12/10	1.04
1981/12/11	1.04
1981/12/12	0.88
1981/12/13	0.96
1981/12/14	0.88
1981/12/15	0.80
1981/12/16	0.72
1981/12/17	0.64
1981/12/18	0.56
1981/12/19	0.56
1981/12/20	0.64
1981/12/21	0.56
1981/12/22	0.48
1981/12/23	0.48
1981/12/24	0.40
1981/12/25	0.40
1981/12/26	0.40
1981/12/27	0.48
1981/12/28	0.48
1981/12/29	0.48
1981/12/30	0.40
1981/12/31	0.32
#===========================================
# Number of observations = 365 / 365
# Average = 1.73