1981/01/01	0.32
1981/01/02	0.23
1981/01/03	0.20
1981/01/04	0.20
1981/01/05	0.19
1981/01/06	0.14
1981/01/07	0.10
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	0.10
1981/01/14	0.10
1981/01/15	0.10
1981/01/16	0.10
1981/01/17	0.13
1981/01/18	0.13
1981/01/19	0.13
1981/01/20	0.13
1981/01/21	0.13
1981/01/22	0.13
1981/01/23	0.13
1981/01/24	0.11
1981/01/25	0.11
1981/01/26	0.11
1981/01/27	0.11
1981/01/28	0.13
1981/01/29	0.13
1981/01/30	0.13
1981/01/31	0.13
1981/02/01	0.13
1981/02/02	0.16
1981/02/03	0.17
1981/02/04	0.17
1981/02/05	0.17
1981/02/06	0.16
1981/02/07	0.14
1981/02/08	0.14
1981/02/09	0.14
1981/02/10	0.14
1981/02/11	0.13
1981/02/12	0.14
1981/02/13	0.16
1981/02/14	0.16
1981/02/15	0.14
1981/02/16	0.14
1981/02/17	0.16
1981/02/18	0.16
1981/02/19	0.17
1981/02/20	0.17
1981/02/21	0.16
1981/02/22	0.14
1981/02/23	0.13
1981/02/24	0.13
1981/02/25	0.13
1981/02/26	0.14
1981/02/27	0.16
1981/02/28	0.17
1981/03/01	0.47
1981/03/02	0.50
1981/03/03	0.50
1981/03/04	0.54
1981/03/05	0.62
1981/03/06	0.32
1981/03/07	0.14
1981/03/08	0.14
1981/03/09	0.14
1981/03/10	0.14
1981/03/11	0.14
1981/03/12	0.14
1981/03/13	0.14
1981/03/14	0.14
1981/03/15	0.14
1981/03/16	0.14
1981/03/17	0.14
1981/03/18	0.14
1981/03/19	0.14
1981/03/20	0.11
1981/03/21	0.10
1981/03/22	0.10
1981/03/23	0.13
1981/03/24	0.13
1981/03/25	0.13
1981/03/26	0.13
1981/03/27	0.13
1981/03/28	0.13
1981/03/29	0.13
1981/03/30	0.13
1981/03/31	0.13
1981/04/01	0.25
1981/04/02	0.25
1981/04/03	0.25
1981/04/04	0.22
1981/04/05	0.22
1981/04/06	0.22
1981/04/07	0.22
1981/04/08	0.19
1981/04/09	0.19
1981/04/10	0.19
1981/04/11	0.19
1981/04/12	0.19
1981/04/13	0.19
1981/04/14	0.19
1981/04/15	0.19
1981/04/16	0.19
1981/04/17	0.19
1981/04/18	0.19
1981/04/19	0.22
1981/04/20	0.22
1981/04/21	0.22
1981/04/22	0.22
1981/04/23	0.22
1981/04/24	0.25
1981/04/25	0.25
1981/04/26	0.28
1981/04/27	0.28
1981/04/28	0.25
1981/04/29	0.25
1981/04/30	0.25
1981/05/01	0.19
1981/05/02	0.37
1981/05/03	0.34
1981/05/04	0.16
1981/05/05	0.16
1981/05/06	0.19
1981/05/07	0.28
1981/05/08	0.37
1981/05/09	0.28
1981/05/10	0.22
1981/05/11	0.19
1981/05/12	0.34
1981/05/13	0.16
1981/05/14	0.19
1981/05/15	0.25
1981/05/16	0.28
1981/05/17	0.28
1981/05/18	0.19
1981/05/19	0.67
1981/05/20	0.25
1981/05/21	0.31
1981/05/22	0.76
1981/05/23	0.76
1981/05/24	0.13
1981/05/25	0.06
1981/05/26	0.05
1981/05/27	0.19
1981/05/28	0.08
1981/05/29	0.06
1981/05/30	0.06
1981/05/31	0.25
1981/06/01	2.61
1981/06/02	0.37
1981/06/03	0.28
1981/06/04	0.81
1981/06/05	0.54
1981/06/06	0.54
1981/06/07	0.34
1981/06/08	0.28
1981/06/09	0.19
1981/06/10	0.19
1981/06/11	0.45
1981/06/12	0.40
1981/06/13	0.22
1981/06/14	0.67
1981/06/15	0.28
1981/06/16	0.10
1981/06/17	0.08
1981/06/18	1.53
1981/06/19	0.63
1981/06/20	0.45
1981/06/21	0.76
1981/06/22	1.23
1981/06/23	1.78
1981/06/24	2.32
1981/06/25	1.23
1981/06/26	1.69
1981/06/27	0.85
1981/06/28	1.15
1981/06/29	0.76
1981/06/30	0.58
1981/07/01	0.37
1981/07/02	0.31
1981/07/03	0.25
1981/07/04	0.28
1981/07/05	0.40
1981/07/06	1.60
1981/07/07	1.23
1981/07/08	0.85
1981/07/09	2.82
1981/07/10	3.80
1981/07/11	3.34
1981/07/12	2.61
1981/07/13	3.45
1981/07/14	2.32
1981/07/15	1.60
1981/07/16	1.08
1981/07/17	2.32
1981/07/18	2.14
1981/07/19	1.60
1981/07/20	1.87
1981/07/21	1.15
1981/07/22	1.00
1981/07/23	0.54
1981/07/24	1.00
1981/07/25	1.08
1981/07/26	0.93
1981/07/27	1.30
1981/07/28	0.93
1981/07/29	1.15
1981/07/30	2.71
1981/07/31	4.94
1981/08/01	10.88
1981/08/02	4.94
1981/08/03	4.05
1981/08/04	7.64
1981/08/05	7.80
1981/08/06	7.32
1981/08/07	4.94
1981/08/08	4.94
1981/08/09	3.93
1981/08/10	3.68
1981/08/11	4.43
1981/08/12	3.93
1981/08/13	4.18
1981/08/14	5.64
1981/08/15	4.55
1981/08/16	3.93
1981/08/17	3.03
1981/08/18	2.71
1981/08/19	2.05
1981/08/20	2.05
1981/08/21	2.05
1981/08/22	2.61
1981/08/23	3.03
1981/08/24	2.23
1981/08/25	2.05
1981/08/26	1.60
1981/08/27	1.60
1981/08/28	1.23
1981/08/29	1.23
1981/08/30	1.30
1981/08/31	1.60
1981/09/01	1.69
1981/09/02	1.53
1981/09/03	2.14
1981/09/04	1.53
1981/09/05	1.38
1981/09/06	1.53
1981/09/07	1.38
1981/09/08	1.23
1981/09/09	1.15
1981/09/10	1.08
1981/09/11	1.00
1981/09/12	0.93
1981/09/13	0.93
1981/09/14	0.93
1981/09/15	0.76
1981/09/16	0.72
1981/09/17	0.54
1981/09/18	0.49
1981/09/19	0.37
1981/09/20	0.34
1981/09/21	0.54
1981/09/22	0.63
1981/09/23	7.00
1981/09/24	0.76
1981/09/25	0.81
1981/09/26	0.63
1981/09/27	0.54
1981/09/28	0.58
1981/09/29	0.76
1981/09/30	0.72
1981/10/01	0.67
1981/10/02	0.63
1981/10/03	0.58
1981/10/04	0.49
1981/10/05	1.23
1981/10/06	1.30
1981/10/07	0.85
1981/10/08	1.30
1981/10/09	2.71
1981/10/10	2.50
1981/10/11	2.14
1981/10/12	1.53
1981/10/13	1.45
1981/10/14	1.23
1981/10/15	1.30
1981/10/16	1.60
1981/10/17	1.15
1981/10/18	0.85
1981/10/19	0.81
1981/10/20	0.76
1981/10/21	0.72
1981/10/22	0.72
1981/10/23	0.72
1981/10/24	0.72
1981/10/25	0.72
1981/10/26	0.54
1981/10/27	0.25
1981/10/28	0.19
1981/10/29	0.25
1981/10/30	0.63
1981/10/31	0.63
1981/11/01	0.63
1981/11/02	0.63
1981/11/03	0.76
1981/11/04	0.76
1981/11/05	0.58
1981/11/06	0.45
1981/11/07	0.37
1981/11/08	0.28
1981/11/09	0.19
1981/11/10	0.19
1981/11/11	0.19
1981/11/12	0.19
1981/11/13	0.19
1981/11/14	0.16
1981/11/15	0.13
1981/11/16	0.10
1981/11/17	0.13
1981/11/18	0.10
1981/11/19	0.09
1981/11/20	0.49
1981/11/21	0.40
1981/11/22	0.40
1981/11/23	0.40
1981/11/24	0.40
1981/11/25	0.63
1981/11/26	0.63
1981/11/27	0.63
1981/11/28	0.81
1981/11/29	0.37
1981/11/30	0.40
1981/12/01	0.49
1981/12/02	0.49
1981/12/03	0.45
1981/12/04	0.40
1981/12/05	0.37
1981/12/06	0.34
1981/12/07	0.34
1981/12/08	0.45
1981/12/09	0.45
1981/12/10	0.40
1981/12/11	0.40
1981/12/12	0.34
1981/12/13	0.37
1981/12/14	0.40
1981/12/15	0.37
1981/12/16	0.34
1981/12/17	0.37
1981/12/18	0.34
1981/12/19	0.31
1981/12/20	0.31
1981/12/21	0.31
1981/12/22	0.31
1981/12/23	0.31
1981/12/24	0.31
1981/12/25	0.31
1981/12/26	0.34
1981/12/27	0.31
1981/12/28	0.28
1981/12/29	0.19
1981/12/30	0.19
1981/12/31	0.16
#===========================================
# Number of observations = 365 / 365
# Average = 0.84