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	0.16
1980/04/02	0.15
1980/04/03	0.15
1980/04/04	0.15
1980/04/05	0.15
1980/04/06	0.14
1980/04/07	0.14
1980/04/08	0.14
1980/04/09	0.14
1980/04/10	0.14
1980/04/11	0.15
1980/04/12	0.14
1980/04/13	0.14
1980/04/14	0.14
1980/04/15	0.15
1980/04/16	0.15
1980/04/17	0.15
1980/04/18	0.14
1980/04/19	0.14
1980/04/20	0.13
1980/04/21	0.13
1980/04/22	0.14
1980/04/23	0.14
1980/04/24	0.14
1980/04/25	0.13
1980/04/26	0.13
1980/04/27	0.14
1980/04/28	0.13
1980/04/29	0.13
1980/04/30	0.13
1980/05/01	0.13
1980/05/02	0.12
1980/05/03	0.12
1980/05/04	0.12
1980/05/05	0.12
1980/05/06	0.11
1980/05/07	0.11
1980/05/08	0.11
1980/05/09	0.11
1980/05/10	0.11
1980/05/11	0.11
1980/05/12	0.12
1980/05/13	0.12
1980/05/14	0.11
1980/05/15	0.12
1980/05/16	0.11
1980/05/17	0.11
1980/05/18	0.11
1980/05/19	0.11
1980/05/20	0.12
1980/05/21	0.13
1980/05/22	0.14
1980/05/23	0.16
1980/05/24	0.17
1980/05/25	0.19
1980/05/26	0.22
1980/05/27	6.68
1980/05/28	1.95
1980/05/29	1.50
1980/05/30	1.26
1980/05/31	1.10
1980/06/01	0.76
1980/06/02	0.74
1980/06/03	0.70
1980/06/04	0.70
1980/06/05	0.64
1980/06/06	0.54
1980/06/07	0.36
1980/06/08	0.30
1980/06/09	0.16
1980/06/10	0.10
1980/06/11	0.09
1980/06/12	0.08
1980/06/13	0.07
1980/06/14	0.06
1980/06/15	0.05
1980/06/16	0.04
1980/06/17	0.12
1980/06/18	0.08
1980/06/19	0.06
1980/06/20	0.08
1980/06/21	1.46
1980/06/22	0.95
1980/06/23	0.36
1980/06/24	0.15
1980/06/25	0.10
1980/06/26	0.09
1980/06/27	0.19
1980/06/28	0.10
1980/06/29	0.09
1980/06/30	0.08
1980/07/01	0.07
1980/07/02	0.07
1980/07/03	0.06
1980/07/04	0.06
1980/07/05	0.06
1980/07/06	0.05
1980/07/07	0.04
1980/07/08	0.03
1980/07/09	0.06
1980/07/10	0.04
1980/07/11	0.03
1980/07/12	0.06
1980/07/13	0.10
1980/07/14	0.10
1980/07/15	0.08
1980/07/16	0.10
1980/07/17	0.10
1980/07/18	0.10
1980/07/19	0.09
1980/07/20	0.10
1980/07/21	0.08
1980/07/22	0.08
1980/07/23	0.60
1980/07/24	0.19
1980/07/25	0.60
1980/07/26	1.82
1980/07/27	1.74
1980/07/28	0.83
1980/07/29	0.52
1980/07/30	0.78
1980/07/31	1.34
1980/08/01	1.50
1980/08/02	1.34
1980/08/03	0.83
1980/08/04	0.22
1980/08/05	0.16
1980/08/06	0.13
1980/08/07	0.10
1980/08/08	0.10
1980/08/09	0.09
1980/08/10	0.08
1980/08/11	0.08
1980/08/12	0.08
1980/08/13	0.08
1980/08/14	0.08
1980/08/15	0.08
1980/08/16	0.09
1980/08/17	0.08
1980/08/18	0.09
1980/08/19	0.10
1980/08/20	0.13
1980/08/21	0.19
1980/08/22	0.18
1980/08/23	0.24
1980/08/24	0.19
1980/08/25	0.17
1980/08/26	0.16
1980/08/27	0.16
1980/08/28	0.14
1980/08/29	0.10
1980/08/30	0.09
1980/08/31	0.16
1980/09/01	0.32
1980/09/02	1.26
1980/09/03	1.50
1980/09/04	0.80
1980/09/05	0.42
1980/09/06	2.90
1980/09/07	2.25
1980/09/08	2.30
1980/09/09	1.66
1980/09/10	1.04
1980/09/11	0.66
1980/09/12	0.62
1980/09/13	0.60
1980/09/14	0.56
1980/09/15	1.01
1980/09/16	0.95
1980/09/17	1.66
1980/09/18	1.78
1980/09/19	1.70
1980/09/20	1.62
1980/09/21	1.50
1980/09/22	0.58
1980/09/23	0.36
1980/09/24	0.24
1980/09/25	1.22
1980/09/26	0.83
1980/09/27	0.76
1980/09/28	0.32
1980/09/29	0.30
1980/09/30	0.58
1980/10/01	0.36
1980/10/02	0.32
1980/10/03	0.30
1980/10/04	0.26
1980/10/05	0.19
1980/10/06	0.15
1980/10/07	0.12
1980/10/08	0.10
1980/10/09	0.08
1980/10/10	0.10
1980/10/11	0.12
1980/10/12	0.10
1980/10/13	0.09
1980/10/14	0.12
1980/10/15	0.13
1980/10/16	0.10
1980/10/17	0.09
1980/10/18	0.12
1980/10/19	0.13
1980/10/20	0.12
1980/10/21	0.09
1980/10/22	0.08
1980/10/23	0.07
1980/10/24	0.07
1980/10/25	0.07
1980/10/26	0.07
1980/10/27	0.07
1980/10/28	0.08
1980/10/29	0.08
1980/10/30	0.08
1980/10/31	0.09
1980/11/01	0.09
1980/11/02	0.08
1980/11/03	0.08
1980/11/04	0.08
1980/11/05	0.08
1980/11/06	0.08
1980/11/07	0.07
1980/11/08	0.07
1980/11/09	0.07
1980/11/10	0.07
1980/11/11	0.07
1980/11/12	0.07
1980/11/13	0.07
1980/11/14	0.07
1980/11/15	0.07
1980/11/16	0.07
1980/11/17	0.07
1980/11/18	0.08
1980/11/19	0.08
1980/11/20	0.08
1980/11/21	0.08
1980/11/22	0.08
1980/11/23	0.08
1980/11/24	0.08
1980/11/25	0.08
1980/11/26	0.08
1980/11/27	0.09
1980/11/28	0.09
1980/11/29	0.09
1980/11/30	0.09
1980/12/01	0.09
1980/12/02	0.08
1980/12/03	0.08
1980/12/04	0.08
1980/12/05	0.08
1980/12/06	0.08
1980/12/07	0.08
1980/12/08	0.08
1980/12/09	0.07
1980/12/10	0.07
1980/12/11	0.07
1980/12/12	0.07
1980/12/13	0.09
1980/12/14	0.08
1980/12/15	0.07
1980/12/16	0.08
1980/12/17	0.08
1980/12/18	0.08
1980/12/19	0.08
1980/12/20	0.07
1980/12/21	0.07
1980/12/22	0.07
1980/12/23	0.07
1980/12/24	0.07
1980/12/25	0.07
1980/12/26	0.07
1980/12/27	0.07
1980/12/28	0.07
1980/12/29	0.07
1980/12/30	0.07
1980/12/31	0.07
#===========================================
# Number of observations = 275 / 366
# Average = 0.32