1981/01/01	0.08
1981/01/02	0.08
1981/01/03	0.08
1981/01/04	0.08
1981/01/05	0.08
1981/01/06	0.08
1981/01/07	0.08
1981/01/08	0.08
1981/01/09	0.08
1981/01/10	0.08
1981/01/11	0.08
1981/01/12	0.08
1981/01/13	0.08
1981/01/14	0.08
1981/01/15	0.07
1981/01/16	0.07
1981/01/17	0.07
1981/01/18	0.07
1981/01/19	0.07
1981/01/20	0.07
1981/01/21	0.07
1981/01/22	0.07
1981/01/23	0.07
1981/01/24	0.07
1981/01/25	0.07
1981/01/26	0.07
1981/01/27	0.07
1981/01/28	0.07
1981/01/29	0.07
1981/01/30	0.07
1981/01/31	0.07
1981/02/01	0.07
1981/02/02	0.07
1981/02/03	0.07
1981/02/04	0.07
1981/02/05	0.07
1981/02/06	0.06
1981/02/07	0.06
1981/02/08	0.07
1981/02/09	0.07
1981/02/10	0.07
1981/02/11	0.07
1981/02/12	0.07
1981/02/13	0.07
1981/02/14	0.07
1981/02/15	0.06
1981/02/16	0.06
1981/02/17	0.06
1981/02/18	0.06
1981/02/19	0.06
1981/02/20	0.06
1981/02/21	0.06
1981/02/22	0.06
1981/02/23	0.06
1981/02/24	0.06
1981/02/25	0.06
1981/02/26	0.06
1981/02/27	0.06
1981/02/28	0.06
1981/03/01	0.05
1981/03/02	0.05
1981/03/03	0.05
1981/03/04	0.05
1981/03/05	0.05
1981/03/06	0.04
1981/03/07	0.05
1981/03/08	0.05
1981/03/09	0.05
1981/03/10	0.05
1981/03/11	0.05
1981/03/12	0.05
1981/03/13	0.05
1981/03/14	0.05
1981/03/15	0.04
1981/03/16	0.04
1981/03/17	0.04
1981/03/18	0.05
1981/03/19	0.05
1981/03/20	0.05
1981/03/21	0.05
1981/03/22	0.05
1981/03/23	0.05
1981/03/24	0.05
1981/03/25	0.05
1981/03/26	0.05
1981/03/27	0.05
1981/03/28	0.05
1981/03/29	0.04
1981/03/30	0.04
1981/03/31	0.04
1981/04/01	0.18
1981/04/02	0.18
1981/04/03	0.18
1981/04/04	0.18
1981/04/05	0.18
1981/04/06	0.18
1981/04/07	0.18
1981/04/08	0.16
1981/04/09	0.16
1981/04/10	0.16
1981/04/11	0.16
1981/04/12	0.16
1981/04/13	0.16
1981/04/14	0.26
1981/04/15	0.29
1981/04/16	0.29
1981/04/17	0.26
1981/04/18	0.26
1981/04/19	0.23
1981/04/20	0.23
1981/04/21	0.20
1981/04/22	0.20
1981/04/23	0.20
1981/04/24	0.20
1981/04/25	0.18
1981/04/26	0.18
1981/04/27	0.18
1981/04/28	0.18
1981/04/29	0.18
1981/04/30	0.18
1981/05/01	0.18
1981/05/02	0.18
1981/05/03	0.18
1981/05/04	0.18
1981/05/05	3.76
1981/05/06	0.56
1981/05/07	0.44
1981/05/08	0.44
1981/05/09	0.38
1981/05/10	0.47
1981/05/11	0.41
1981/05/12	0.38
1981/05/13	0.38
1981/05/14	0.35
1981/05/15	0.50
1981/05/16	0.50
1981/05/17	22.02
1981/05/18	1.55
1981/05/19	1.04
1981/05/20	0.86
1981/05/21	0.92
1981/05/22	1.37
1981/05/23	4.84
1981/05/24	3.40
1981/05/25	8.31
1981/05/26	1.82
1981/05/27	1.19
1981/05/28	2.28
1981/05/29	2.70
1981/05/30	1.82
1981/05/31	1.82
1981/06/01	1.19
1981/06/02	1.37
1981/06/03	1.10
1981/06/04	0.92
1981/06/05	0.80
1981/06/06	0.68
1981/06/07	0.62
1981/06/08	0.62
1981/06/09	0.56
1981/06/10	0.50
1981/06/11	0.41
1981/06/12	0.44
1981/06/13	0.41
1981/06/14	0.41
1981/06/15	0.38
1981/06/16	0.38
1981/06/17	0.38
1981/06/18	0.35
1981/06/19	0.35
1981/06/20	0.38
1981/06/21	0.38
1981/06/22	0.35
1981/06/23	0.35
1981/06/24	0.35
1981/06/25	0.32
1981/06/26	0.23
1981/06/27	0.23
1981/06/28	0.18
1981/06/29	0.18
1981/06/30	0.18
1981/07/01	0.18
1981/07/02	0.20
1981/07/03	0.23
1981/07/04	0.18
1981/07/05	0.47
1981/07/06	40.22
1981/07/07	15.23
1981/07/08	4.48
1981/07/09	2.28
1981/07/10	6.35
1981/07/11	47.96
1981/07/12	4.84
1981/07/13	1.55
1981/07/14	1.19
1981/07/15	1.04
1981/07/16	2.98
1981/07/17	1.91
1981/07/18	27.78
1981/07/19	8.04
1981/07/20	13.68
1981/07/21	9.93
1981/07/22	6.58
1981/07/23	3.26
1981/07/24	15.23
1981/07/25	6.12
1981/07/26	3.94
1981/07/27	2.42
1981/07/28	2.56
1981/07/29	2.70
1981/07/30	4.12
1981/07/31	4.84
1981/08/01	3.40
1981/08/02	2.56
1981/08/03	2.00
1981/08/04	12.06
1981/08/05	17.54
1981/08/06	7.50
1981/08/07	6.58
1981/08/08	5.02
1981/08/09	4.12
1981/08/10	3.76
1981/08/11	8.04
1981/08/12	4.84
1981/08/13	3.40
1981/08/14	2.56
1981/08/15	2.00
1981/08/16	1.64
1981/08/17	1.55
1981/08/18	4.30
1981/08/19	13.30
1981/08/20	9.12
1981/08/21	4.48
1981/08/22	3.12
1981/08/23	6.58
1981/08/24	6.12
1981/08/25	4.30
1981/08/26	2.70
1981/08/27	2.42
1981/08/28	2.56
1981/08/29	1.91
1981/08/30	1.73
1981/08/31	1.55
1981/09/01	2.28
1981/09/02	2.70
1981/09/03	3.26
1981/09/04	5.20
1981/09/05	3.58
1981/09/06	2.70
1981/09/07	2.70
1981/09/08	2.28
1981/09/09	2.00
1981/09/10	2.00
1981/09/11	1.73
1981/09/12	2.00
1981/09/13	1.64
1981/09/14	1.55
1981/09/15	1.37
1981/09/16	1.28
1981/09/17	1.19
1981/09/18	1.10
1981/09/19	1.10
1981/09/20	1.19
1981/09/21	0.98
1981/09/22	1.10
1981/09/23	1.28
1981/09/24	1.10
1981/09/25	1.10
1981/09/26	1.10
1981/09/27	0.98
1981/09/28	0.92
1981/09/29	0.80
1981/09/30	0.80
1981/10/01	0.80
1981/10/02	0.80
1981/10/03	1.04
1981/10/04	0.86
1981/10/05	0.86
1981/10/06	0.86
1981/10/07	0.80
1981/10/08	0.80
1981/10/09	0.80
1981/10/10	0.80
1981/10/11	0.98
1981/10/12	0.92
1981/10/13	1.10
1981/10/14	1.10
1981/10/15	1.04
1981/10/16	1.10
1981/10/17	1.64
1981/10/18	1.73
1981/10/19	2.00
1981/10/20	1.64
1981/10/21	1.46
1981/10/22	1.46
1981/10/23	1.37
1981/10/24	1.37
1981/10/25	1.19
1981/10/26	1.10
1981/10/27	1.04
1981/10/28	0.98
1981/10/29	0.92
1981/10/30	0.86
1981/10/31	0.86
1981/11/01	0.86
1981/11/02	0.80
1981/11/03	0.80
1981/11/04	0.80
1981/11/05	0.80
1981/11/06	0.80
1981/11/07	0.80
1981/11/08	0.80
1981/11/09	0.80
1981/11/10	0.86
1981/11/11	0.86
1981/11/12	0.86
1981/11/13	0.86
1981/11/14	0.98
1981/11/15	1.10
1981/11/16	1.04
1981/11/17	12.99
1981/11/18	6.81
1981/11/19	2.84
1981/11/20	1.91
1981/11/21	1.73
1981/11/22	1.55
1981/11/23	1.46
1981/11/24	1.37
1981/11/25	1.37
1981/11/26	1.28
1981/11/27	1.19
1981/11/28	1.19
1981/11/29	1.10
1981/11/30	1.19
1981/12/01	0.98
1981/12/02	0.98
1981/12/03	0.92
1981/12/04	0.92
1981/12/05	0.92
1981/12/06	0.86
1981/12/07	0.86
1981/12/08	0.86
1981/12/09	0.80
1981/12/10	0.80
1981/12/11	0.80
1981/12/12	0.80
1981/12/13	0.80
1981/12/14	0.80
1981/12/15	0.80
1981/12/16	0.80
1981/12/17	0.68
1981/12/18	0.68
1981/12/19	0.68
1981/12/20	0.68
1981/12/21	0.68
1981/12/22	0.62
1981/12/23	0.56
1981/12/24	0.50
1981/12/25	0.56
1981/12/26	0.56
1981/12/27	0.56
1981/12/28	0.56
1981/12/29	0.56
1981/12/30	0.56
1981/12/31	0.56
#===========================================
# Number of observations = 365 / 365
# Average = 1.78