1980/01/01	-9999
1980/01/02	-9999
1980/01/03	-9999
1980/01/04	-9999
1980/01/05	-9999
1980/01/06	-9999
1980/01/07	-9999
1980/01/08	-9999
1980/01/09	-9999
1980/01/10	-9999
1980/01/11	-9999
1980/01/12	-9999
1980/01/13	-9999
1980/01/14	-9999
1980/01/15	-9999
1980/01/16	-9999
1980/01/17	-9999
1980/01/18	-9999
1980/01/19	-9999
1980/01/20	-9999
1980/01/21	-9999
1980/01/22	-9999
1980/01/23	-9999
1980/01/24	-9999
1980/01/25	-9999
1980/01/26	-9999
1980/01/27	-9999
1980/01/28	-9999
1980/01/29	-9999
1980/01/30	-9999
1980/01/31	-9999
1980/02/01	-9999
1980/02/02	-9999
1980/02/03	-9999
1980/02/04	-9999
1980/02/05	-9999
1980/02/06	-9999
1980/02/07	-9999
1980/02/08	-9999
1980/02/09	-9999
1980/02/10	-9999
1980/02/11	-9999
1980/02/12	-9999
1980/02/13	-9999
1980/02/14	-9999
1980/02/15	-9999
1980/02/16	-9999
1980/02/17	-9999
1980/02/18	-9999
1980/02/19	-9999
1980/02/20	-9999
1980/02/21	-9999
1980/02/22	-9999
1980/02/23	-9999
1980/02/24	-9999
1980/02/25	-9999
1980/02/26	-9999
1980/02/27	-9999
1980/02/28	-9999
1980/02/29	-9999
1980/03/01	-9999
1980/03/02	-9999
1980/03/03	-9999
1980/03/04	-9999
1980/03/05	-9999
1980/03/06	-9999
1980/03/07	-9999
1980/03/08	-9999
1980/03/09	-9999
1980/03/10	-9999
1980/03/11	-9999
1980/03/12	-9999
1980/03/13	-9999
1980/03/14	-9999
1980/03/15	-9999
1980/03/16	-9999
1980/03/17	-9999
1980/03/18	-9999
1980/03/19	-9999
1980/03/20	-9999
1980/03/21	-9999
1980/03/22	-9999
1980/03/23	-9999
1980/03/24	-9999
1980/03/25	-9999
1980/03/26	-9999
1980/03/27	-9999
1980/03/28	-9999
1980/03/29	-9999
1980/03/30	-9999
1980/03/31	-9999
1980/04/01	0.32
1980/04/02	0.32
1980/04/03	0.32
1980/04/04	0.32
1980/04/05	0.32
1980/04/06	0.32
1980/04/07	0.33
1980/04/08	0.33
1980/04/09	0.33
1980/04/10	0.33
1980/04/11	0.33
1980/04/12	0.33
1980/04/13	0.33
1980/04/14	0.33
1980/04/15	0.33
1980/04/16	0.33
1980/04/17	0.33
1980/04/18	0.33
1980/04/19	0.33
1980/04/20	0.33
1980/04/21	0.32
1980/04/22	0.29
1980/04/23	0.29
1980/04/24	0.32
1980/04/25	0.32
1980/04/26	0.32
1980/04/27	0.33
1980/04/28	0.33
1980/04/29	0.32
1980/04/30	0.32
1980/05/01	0.32
1980/05/02	0.32
1980/05/03	0.32
1980/05/04	0.46
1980/05/05	0.46
1980/05/06	0.33
1980/05/07	0.33
1980/05/08	0.33
1980/05/09	0.32
1980/05/10	0.38
1980/05/11	0.32
1980/05/12	0.32
1980/05/13	0.46
1980/05/14	0.33
1980/05/15	0.32
1980/05/16	0.32
1980/05/17	0.33
1980/05/18	0.32
1980/05/19	0.32
1980/05/20	0.40
1980/05/21	0.33
1980/05/22	0.33
1980/05/23	0.35
1980/05/24	0.33
1980/05/25	0.33
1980/05/26	0.32
1980/05/27	1.09
1980/05/28	0.33
1980/05/29	0.32
1980/05/30	0.29
1980/05/31	0.29
1980/06/01	0.29
1980/06/02	0.29
1980/06/03	0.29
1980/06/04	0.29
1980/06/05	0.27
1980/06/06	0.27
1980/06/07	0.27
1980/06/08	0.27
1980/06/09	0.29
1980/06/10	0.29
1980/06/11	0.36
1980/06/12	0.29
1980/06/13	0.59
1980/06/14	0.35
1980/06/15	0.35
1980/06/16	0.36
1980/06/17	1.74
1980/06/18	0.92
1980/06/19	0.80
1980/06/20	0.86
1980/06/21	0.36
1980/06/22	0.40
1980/06/23	0.32
1980/06/24	0.30
1980/06/25	0.25
1980/06/26	0.35
1980/06/27	0.62
1980/06/28	0.43
1980/06/29	0.38
1980/06/30	0.48
1980/07/01	0.86
1980/07/02	0.43
1980/07/03	0.35
1980/07/04	0.35
1980/07/05	0.30
1980/07/06	0.27
1980/07/07	0.27
1980/07/08	0.27
1980/07/09	0.27
1980/07/10	0.27
1980/07/11	0.25
1980/07/12	0.25
1980/07/13	0.26
1980/07/14	0.26
1980/07/15	0.25
1980/07/16	0.25
1980/07/17	0.23
1980/07/18	0.22
1980/07/19	0.25
1980/07/20	0.25
1980/07/21	0.25
1980/07/22	0.25
1980/07/23	0.26
1980/07/24	0.26
1980/07/25	0.26
1980/07/26	0.44
1980/07/27	0.38
1980/07/28	2.78
1980/07/29	0.92
1980/07/30	1.41
1980/07/31	0.68
1980/08/01	0.48
1980/08/02	0.41
1980/08/03	0.90
1980/08/04	0.41
1980/08/05	0.40
1980/08/06	0.33
1980/08/07	0.32
1980/08/08	0.29
1980/08/09	0.27
1980/08/10	0.26
1980/08/11	0.26
1980/08/12	0.25
1980/08/13	0.25
1980/08/14	0.23
1980/08/15	0.22
1980/08/16	0.21
1980/08/17	0.21
1980/08/18	0.23
1980/08/19	0.23
1980/08/20	0.20
1980/08/21	0.20
1980/08/22	0.22
1980/08/23	0.26
1980/08/24	2.18
1980/08/25	0.82
1980/08/26	0.59
1980/08/27	0.53
1980/08/28	0.50
1980/08/29	0.48
1980/08/30	0.44
1980/08/31	0.46
1980/09/01	0.44
1980/09/02	0.36
1980/09/03	0.46
1980/09/04	0.43
1980/09/05	0.41
1980/09/06	0.41
1980/09/07	1.44
1980/09/08	1.38
1980/09/09	1.11
1980/09/10	0.80
1980/09/11	0.78
1980/09/12	0.70
1980/09/13	0.59
1980/09/14	0.55
1980/09/15	0.50
1980/09/16	0.46
1980/09/17	0.76
1980/09/18	0.53
1980/09/19	0.50
1980/09/20	0.48
1980/09/21	0.44
1980/09/22	0.48
1980/09/23	0.43
1980/09/24	0.43
1980/09/25	0.41
1980/09/26	0.44
1980/09/27	0.44
1980/09/28	0.43
1980/09/29	0.40
1980/09/30	0.40
1980/10/01	0.41
1980/10/02	0.41
1980/10/03	0.41
1980/10/04	0.40
1980/10/05	0.40
1980/10/06	0.40
1980/10/07	0.38
1980/10/08	0.36
1980/10/09	0.35
1980/10/10	0.38
1980/10/11	0.36
1980/10/12	0.38
1980/10/13	0.36
1980/10/14	0.35
1980/10/15	0.35
1980/10/16	0.35
1980/10/17	0.36
1980/10/18	0.36
1980/10/19	1.33
1980/10/20	0.48
1980/10/21	0.41
1980/10/22	0.41
1980/10/23	0.41
1980/10/24	0.43
1980/10/25	0.43
1980/10/26	0.41
1980/10/27	0.41
1980/10/28	0.40
1980/10/29	0.41
1980/10/30	0.40
1980/10/31	0.40
1980/11/01	0.40
1980/11/02	0.40
1980/11/03	0.40
1980/11/04	0.40
1980/11/05	0.40
1980/11/06	0.40
1980/11/07	0.40
1980/11/08	0.40
1980/11/09	0.40
1980/11/10	0.38
1980/11/11	0.38
1980/11/12	0.38
1980/11/13	0.38
1980/11/14	0.38
1980/11/15	0.38
1980/11/16	0.38
1980/11/17	0.38
1980/11/18	0.38
1980/11/19	0.38
1980/11/20	0.38
1980/11/21	0.38
1980/11/22	0.38
1980/11/23	0.38
1980/11/24	0.38
1980/11/25	0.38
1980/11/26	0.38
1980/11/27	0.38
1980/11/28	0.38
1980/11/29	0.38
1980/11/30	0.38
1980/12/01	0.38
1980/12/02	0.38
1980/12/03	0.38
1980/12/04	0.38
1980/12/05	0.38
1980/12/06	0.38
1980/12/07	0.32
1980/12/08	0.38
1980/12/09	0.40
1980/12/10	0.40
1980/12/11	0.40
1980/12/12	0.40
1980/12/13	0.40
1980/12/14	0.40
1980/12/15	0.38
1980/12/16	0.38
1980/12/17	0.38
1980/12/18	0.38
1980/12/19	0.38
1980/12/20	0.38
1980/12/21	0.38
1980/12/22	0.38
1980/12/23	0.38
1980/12/24	0.38
1980/12/25	0.38
1980/12/26	0.38
1980/12/27	0.38
1980/12/28	0.38
1980/12/29	0.38
1980/12/30	0.38
1980/12/31	0.38
#===========================================
# Number of observations = 275 / 366
# Average = 0.42