1981/01/01	0.05
1981/01/02	0.05
1981/01/03	0.05
1981/01/04	0.05
1981/01/05	0.05
1981/01/06	0.05
1981/01/07	0.05
1981/01/08	0.05
1981/01/09	0.04
1981/01/10	0.04
1981/01/11	0.04
1981/01/12	0.04
1981/01/13	0.04
1981/01/14	0.04
1981/01/15	0.04
1981/01/16	0.04
1981/01/17	0.04
1981/01/18	0.04
1981/01/19	0.04
1981/01/20	0.03
1981/01/21	0.03
1981/01/22	0.03
1981/01/23	0.03
1981/01/24	0.03
1981/01/25	0.03
1981/01/26	0.03
1981/01/27	0.03
1981/01/28	0.03
1981/01/29	0.02
1981/01/30	0.03
1981/01/31	0.03
1981/02/01	0.03
1981/02/02	0.03
1981/02/03	0.03
1981/02/04	0.03
1981/02/05	0.03
1981/02/06	0.03
1981/02/07	0.03
1981/02/08	0.03
1981/02/09	0.03
1981/02/10	0.03
1981/02/11	0.03
1981/02/12	0.03
1981/02/13	0.03
1981/02/14	0.03
1981/02/15	0.03
1981/02/16	0.03
1981/02/17	0.02
1981/02/18	0.02
1981/02/19	0.02
1981/02/20	0.02
1981/02/21	0.02
1981/02/22	0.02
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	0.02
1981/03/02	0.02
1981/03/03	0.02
1981/03/04	0.02
1981/03/05	0.02
1981/03/06	0.02
1981/03/07	0.02
1981/03/08	0.02
1981/03/09	0.02
1981/03/10	0.02
1981/03/11	0.02
1981/03/12	0.02
1981/03/13	0.02
1981/03/14	0.02
1981/03/15	0.02
1981/03/16	0.02
1981/03/17	0.01
1981/03/18	0.01
1981/03/19	0.01
1981/03/20	0.01
1981/03/21	0.01
1981/03/22	0.01
1981/03/23	0.01
1981/03/24	0.01
1981/03/25	0.01
1981/03/26	0.01
1981/03/27	0.01
1981/03/28	0.01
1981/03/29	0.01
1981/03/30	0.01
1981/03/31	0.01
1981/04/01	0.02
1981/04/02	0.02
1981/04/03	0.02
1981/04/04	0.02
1981/04/05	0.02
1981/04/06	0.02
1981/04/07	0.02
1981/04/08	0.02
1981/04/09	0.02
1981/04/10	0.02
1981/04/11	0.02
1981/04/12	0.02
1981/04/13	0.02
1981/04/14	0.02
1981/04/15	0.02
1981/04/16	0.02
1981/04/17	0.09
1981/04/18	0.04
1981/04/19	0.07
1981/04/20	0.07
1981/04/21	0.07
1981/04/22	0.02
1981/04/23	0.02
1981/04/24	0.02
1981/04/25	0.02
1981/04/26	0.04
1981/04/27	0.04
1981/04/28	0.02
1981/04/29	0.07
1981/04/30	0.07
1981/05/01	0.04
1981/05/02	0.09
1981/05/03	0.07
1981/05/04	0.04
1981/05/05	0.12
1981/05/06	1.14
1981/05/07	0.86
1981/05/08	0.70
1981/05/09	0.81
1981/05/10	0.70
1981/05/11	0.70
1981/05/12	1.27
1981/05/13	1.09
1981/05/14	0.92
1981/05/15	0.75
1981/05/16	0.70
1981/05/17	0.70
1981/05/18	0.75
1981/05/19	1.20
1981/05/20	1.34
1981/05/21	1.34
1981/05/22	1.34
1981/05/23	7.50
1981/05/24	24.60
1981/05/25	11.55
1981/05/26	7.50
1981/05/27	4.71
1981/05/28	3.02
1981/05/29	3.31
1981/05/30	2.92
1981/05/31	2.56
1981/06/01	2.48
1981/06/02	2.65
1981/06/03	2.56
1981/06/04	2.83
1981/06/05	2.83
1981/06/06	2.56
1981/06/07	2.14
1981/06/08	1.41
1981/06/09	1.27
1981/06/10	0.98
1981/06/11	0.86
1981/06/12	0.98
1981/06/13	1.14
1981/06/14	1.14
1981/06/15	0.98
1981/06/16	0.81
1981/06/17	0.60
1981/06/18	0.56
1981/06/19	0.56
1981/06/20	0.53
1981/06/21	0.56
1981/06/22	0.60
1981/06/23	0.64
1981/06/24	0.64
1981/06/25	0.64
1981/06/26	0.70
1981/06/27	0.60
1981/06/28	0.49
1981/06/29	0.49
1981/06/30	0.41
1981/07/01	0.37
1981/07/02	0.34
1981/07/03	0.34
1981/07/04	0.30
1981/07/05	0.30
1981/07/06	0.45
1981/07/07	33.45
1981/07/08	12.62
1981/07/09	9.02
1981/07/10	5.54
1981/07/11	5.78
1981/07/12	4.48
1981/07/13	2.83
1981/07/14	1.97
1981/07/15	1.68
1981/07/16	1.82
1981/07/17	2.48
1981/07/18	2.23
1981/07/19	2.06
1981/07/20	2.06
1981/07/21	2.23
1981/07/22	5.18
1981/07/23	4.04
1981/07/24	4.37
1981/07/25	7.65
1981/07/26	7.80
1981/07/27	9.18
1981/07/28	7.65
1981/07/29	5.90
1981/07/30	4.94
1981/07/31	5.06
1981/08/01	5.06
1981/08/02	11.55
1981/08/03	9.68
1981/08/04	7.35
1981/08/05	12.44
1981/08/06	22.13
1981/08/07	12.08
1981/08/08	15.08
1981/08/09	7.95
1981/08/10	5.66
1981/08/11	24.83
1981/08/12	12.99
1981/08/13	8.10
1981/08/14	5.42
1981/08/15	4.60
1981/08/16	3.31
1981/08/17	2.65
1981/08/18	2.23
1981/08/19	6.42
1981/08/20	8.10
1981/08/21	8.10
1981/08/22	5.30
1981/08/23	4.37
1981/08/24	7.50
1981/08/25	5.18
1981/08/26	3.81
1981/08/27	2.83
1981/08/28	2.65
1981/08/29	2.31
1981/08/30	2.14
1981/08/31	1.97
1981/09/01	2.14
1981/09/02	15.47
1981/09/03	7.35
1981/09/04	5.54
1981/09/05	4.71
1981/09/06	4.37
1981/09/07	7.08
1981/09/08	14.68
1981/09/09	14.49
1981/09/10	8.10
1981/09/11	7.08
1981/09/12	11.20
1981/09/13	5.90
1981/09/14	3.81
1981/09/15	2.73
1981/09/16	3.02
1981/09/17	2.39
1981/09/18	2.14
1981/09/19	2.06
1981/09/20	1.61
1981/09/21	7.80
1981/09/22	4.37
1981/09/23	3.22
1981/09/24	2.92
1981/09/25	2.73
1981/09/26	3.22
1981/09/27	2.31
1981/09/28	1.89
1981/09/29	1.68
1981/09/30	1.55
1981/10/01	1.55
1981/10/02	1.48
1981/10/03	1.41
1981/10/04	1.27
1981/10/05	1.14
1981/10/06	2.83
1981/10/07	2.56
1981/10/08	3.41
1981/10/09	2.56
1981/10/10	3.31
1981/10/11	2.65
1981/10/12	2.39
1981/10/13	1.97
1981/10/14	1.89
1981/10/15	1.68
1981/10/16	1.97
1981/10/17	2.14
1981/10/18	2.39
1981/10/19	2.92
1981/10/20	2.65
1981/10/21	2.23
1981/10/22	2.06
1981/10/23	1.97
1981/10/24	2.06
1981/10/25	2.06
1981/10/26	2.14
1981/10/27	2.06
1981/10/28	1.89
1981/10/29	1.82
1981/10/30	1.61
1981/10/31	1.61
1981/11/01	1.55
1981/11/02	1.48
1981/11/03	1.41
1981/11/04	1.41
1981/11/05	1.34
1981/11/06	1.27
1981/11/07	1.34
1981/11/08	1.34
1981/11/09	1.34
1981/11/10	1.34
1981/11/11	1.34
1981/11/12	1.34
1981/11/13	1.34
1981/11/14	1.41
1981/11/15	1.55
1981/11/16	2.06
1981/11/17	6.42
1981/11/18	8.40
1981/11/19	5.90
1981/11/20	4.04
1981/11/21	2.65
1981/11/22	2.39
1981/11/23	2.14
1981/11/24	1.97
1981/11/25	1.82
1981/11/26	1.89
1981/11/27	1.68
1981/11/28	1.48
1981/11/29	1.34
1981/11/30	1.27
1981/12/01	1.14
1981/12/02	0.92
1981/12/03	0.81
1981/12/04	0.81
1981/12/05	0.86
1981/12/06	0.81
1981/12/07	0.75
1981/12/08	0.64
1981/12/09	0.64
1981/12/10	0.60
1981/12/11	0.60
1981/12/12	0.60
1981/12/13	0.60
1981/12/14	0.60
1981/12/15	0.75
1981/12/16	0.75
1981/12/17	0.70
1981/12/18	0.60
1981/12/19	0.60
1981/12/20	0.60
1981/12/21	0.56
1981/12/22	0.53
1981/12/23	0.49
1981/12/24	0.41
1981/12/25	0.34
1981/12/26	0.26
1981/12/27	0.24
1981/12/28	0.21
1981/12/29	0.21
1981/12/30	0.30
1981/12/31	0.30
#===========================================
# Number of observations = 365 / 365
# Average = 2.24