1981/01/01	0.25
1981/01/02	0.28
1981/01/03	0.48
1981/01/04	0.85
1981/01/05	0.90
1981/01/06	0.85
1981/01/07	0.65
1981/01/08	0.80
1981/01/09	0.85
1981/01/10	0.65
1981/01/11	0.43
1981/01/12	0.65
1981/01/13	0.70
1981/01/14	0.65
1981/01/15	0.60
1981/01/16	0.75
1981/01/17	0.33
1981/01/18	0.33
1981/01/19	0.38
1981/01/20	0.40
1981/01/21	0.45
1981/01/22	0.55
1981/01/23	0.35
1981/01/24	0.35
1981/01/25	0.35
1981/01/26	0.38
1981/01/27	0.43
1981/01/28	0.48
1981/01/29	0.50
1981/01/30	0.55
1981/01/31	0.50
1981/02/01	0.50
1981/02/02	0.50
1981/02/03	0.48
1981/02/04	0.55
1981/02/05	0.60
1981/02/06	0.30
1981/02/07	0.23
1981/02/08	0.23
1981/02/09	0.23
1981/02/10	0.18
1981/02/11	0.18
1981/02/12	0.18
1981/02/13	0.18
1981/02/14	0.18
1981/02/15	0.18
1981/02/16	0.18
1981/02/17	0.15
1981/02/18	0.15
1981/02/19	0.15
1981/02/20	0.15
1981/02/21	0.15
1981/02/22	0.15
1981/02/23	0.15
1981/02/24	0.15
1981/02/25	0.15
1981/02/26	0.15
1981/02/27	0.15
1981/02/28	0.15
1981/03/01	0.13
1981/03/02	0.13
1981/03/03	0.13
1981/03/04	0.13
1981/03/05	0.13
1981/03/06	0.13
1981/03/07	1.25
1981/03/08	0.48
1981/03/09	0.40
1981/03/10	0.35
1981/03/11	0.28
1981/03/12	0.23
1981/03/13	0.18
1981/03/14	0.18
1981/03/15	0.18
1981/03/16	0.18
1981/03/17	0.18
1981/03/18	0.18
1981/03/19	0.18
1981/03/20	0.18
1981/03/21	0.18
1981/03/22	0.15
1981/03/23	0.13
1981/03/24	0.10
1981/03/25	0.10
1981/03/26	0.10
1981/03/27	0.10
1981/03/28	0.10
1981/03/29	0.10
1981/03/30	0.10
1981/03/31	0.10
1981/04/01	0.08
1981/04/02	0.06
1981/04/03	0.06
1981/04/04	0.06
1981/04/05	0.06
1981/04/06	0.06
1981/04/07	0.06
1981/04/08	0.06
1981/04/09	0.06
1981/04/10	0.06
1981/04/11	0.06
1981/04/12	0.04
1981/04/13	0.06
1981/04/14	0.06
1981/04/15	0.06
1981/04/16	0.06
1981/04/17	0.10
1981/04/18	0.08
1981/04/19	0.06
1981/04/20	0.06
1981/04/21	0.14
1981/04/22	0.06
1981/04/23	0.06
1981/04/24	0.06
1981/04/25	0.06
1981/04/26	0.06
1981/04/27	0.04
1981/04/28	0.04
1981/04/29	0.04
1981/04/30	0.04
1981/05/01	0.04
1981/05/02	0.04
1981/05/03	0.04
1981/05/04	0.18
1981/05/05	2.49
1981/05/06	0.70
1981/05/07	0.44
1981/05/08	0.38
1981/05/09	0.32
1981/05/10	0.23
1981/05/11	0.18
1981/05/12	0.14
1981/05/13	0.14
1981/05/14	0.12
1981/05/15	0.12
1981/05/16	0.12
1981/05/17	0.12
1981/05/18	0.74
1981/05/19	2.35
1981/05/20	1.15
1981/05/21	0.62
1981/05/22	0.47
1981/05/23	5.50
1981/05/24	4.28
1981/05/25	1.88
1981/05/26	4.20
1981/05/27	3.48
1981/05/28	1.82
1981/05/29	2.28
1981/05/30	1.20
1981/05/31	1.05
1981/06/01	0.66
1981/06/02	0.54
1981/06/03	0.50
1981/06/04	0.47
1981/06/05	0.44
1981/06/06	0.38
1981/06/07	0.38
1981/06/08	0.35
1981/06/09	0.35
1981/06/10	0.29
1981/06/11	0.29
1981/06/12	0.29
1981/06/13	0.26
1981/06/14	0.26
1981/06/15	0.29
1981/06/16	0.29
1981/06/17	0.26
1981/06/18	0.23
1981/06/19	0.26
1981/06/20	0.35
1981/06/21	0.54
1981/06/22	0.62
1981/06/23	0.78
1981/06/24	0.70
1981/06/25	0.54
1981/06/26	0.50
1981/06/27	0.66
1981/06/28	0.78
1981/06/29	0.50
1981/06/30	0.50
1981/07/01	0.47
1981/07/02	0.47
1981/07/03	0.47
1981/07/04	0.44
1981/07/05	0.44
1981/07/06	0.44
1981/07/07	1.05
1981/07/08	1.52
1981/07/09	1.15
1981/07/10	1.25
1981/07/11	1.15
1981/07/12	1.05
1981/07/13	0.74
1981/07/14	0.54
1981/07/15	0.50
1981/07/16	1.76
1981/07/17	1.82
1981/07/18	1.25
1981/07/19	0.95
1981/07/20	0.82
1981/07/21	2.35
1981/07/22	6.30
1981/07/23	2.56
1981/07/24	1.76
1981/07/25	1.64
1981/07/26	1.70
1981/07/27	2.49
1981/07/28	4.20
1981/07/29	2.91
1981/07/30	2.98
1981/07/31	4.76
1981/08/01	3.12
1981/08/02	2.00
1981/08/03	1.70
1981/08/04	2.07
1981/08/05	2.42
1981/08/06	3.40
1981/08/07	2.35
1981/08/08	1.76
1981/08/09	1.64
1981/08/10	1.00
1981/08/11	0.90
1981/08/12	0.90
1981/08/13	1.10
1981/08/14	0.90
1981/08/15	0.66
1981/08/16	0.50
1981/08/17	0.54
1981/08/18	0.50
1981/08/19	0.50
1981/08/20	0.54
1981/08/21	1.40
1981/08/22	1.64
1981/08/23	1.20
1981/08/24	1.05
1981/08/25	0.74
1981/08/26	0.62
1981/08/27	0.62
1981/08/28	0.58
1981/08/29	1.25
1981/08/30	1.15
1981/08/31	1.15
1981/09/01	1.15
1981/09/02	2.14
1981/09/03	1.25
1981/09/04	1.05
1981/09/05	1.58
1981/09/06	2.35
1981/09/07	2.07
1981/09/08	1.64
1981/09/09	1.52
1981/09/10	2.91
1981/09/11	2.28
1981/09/12	1.00
1981/09/13	0.78
1981/09/14	0.70
1981/09/15	0.54
1981/09/16	0.54
1981/09/17	0.50
1981/09/18	0.50
1981/09/19	0.47
1981/09/20	0.38
1981/09/21	0.35
1981/09/22	0.32
1981/09/23	0.29
1981/09/24	0.29
1981/09/25	0.29
1981/09/26	0.29
1981/09/27	0.35
1981/09/28	0.29
1981/09/29	0.26
1981/09/30	0.26
1981/10/01	0.26
1981/10/02	0.26
1981/10/03	0.26
1981/10/04	0.29
1981/10/05	0.47
1981/10/06	0.58
1981/10/07	2.91
1981/10/08	2.28
1981/10/09	1.40
1981/10/10	0.95
1981/10/11	0.86
1981/10/12	1.15
1981/10/13	2.42
1981/10/14	2.00
1981/10/15	1.82
1981/10/16	1.35
1981/10/17	5.30
1981/10/18	7.40
1981/10/19	3.96
1981/10/20	2.84
1981/10/21	2.56
1981/10/22	3.72
1981/10/23	2.49
1981/10/24	2.00
1981/10/25	1.70
1981/10/26	1.64
1981/10/27	1.35
1981/10/28	1.35
1981/10/29	1.25
1981/10/30	1.20
1981/10/31	1.15
1981/11/01	1.10
1981/11/02	1.00
1981/11/03	0.90
1981/11/04	1.05
1981/11/05	1.05
1981/11/06	1.05
1981/11/07	1.05
1981/11/08	2.07
1981/11/09	2.70
1981/11/10	2.35
1981/11/11	1.76
1981/11/12	1.52
1981/11/13	1.25
1981/11/14	1.46
1981/11/15	1.58
1981/11/16	3.64
1981/11/17	5.80
1981/11/18	3.72
1981/11/19	4.68
1981/11/20	3.88
1981/11/21	2.63
1981/11/22	2.28
1981/11/23	1.76
1981/11/24	1.52
1981/11/25	1.35
1981/11/26	1.25
1981/11/27	1.20
1981/11/28	1.05
1981/11/29	1.00
1981/11/30	0.95
1981/12/01	0.86
1981/12/02	0.82
1981/12/03	0.78
1981/12/04	0.74
1981/12/05	0.74
1981/12/06	0.70
1981/12/07	0.70
1981/12/08	0.66
1981/12/09	0.62
1981/12/10	0.58
1981/12/11	0.54
1981/12/12	0.54
1981/12/13	0.50
1981/12/14	0.44
1981/12/15	0.44
1981/12/16	0.44
1981/12/17	0.44
1981/12/18	0.78
1981/12/19	0.78
1981/12/20	0.62
1981/12/21	0.62
1981/12/22	0.58
1981/12/23	0.50
1981/12/24	0.47
1981/12/25	0.44
1981/12/26	0.44
1981/12/27	0.41
1981/12/28	0.38
1981/12/29	0.35
1981/12/30	0.35
1981/12/31	0.32
#===========================================
# Number of observations = 365 / 365
# Average = 0.92