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	0.60
1980/04/02	0.60
1980/04/03	0.60
1980/04/04	0.60
1980/04/05	0.60
1980/04/06	0.60
1980/04/07	0.60
1980/04/08	0.50
1980/04/09	0.50
1980/04/10	0.50
1980/04/11	0.40
1980/04/12	0.40
1980/04/13	0.40
1980/04/14	0.40
1980/04/15	0.40
1980/04/16	0.50
1980/04/17	1.50
1980/04/18	1.90
1980/04/19	1.70
1980/04/20	1.50
1980/04/21	1.30
1980/04/22	1.10
1980/04/23	1.10
1980/04/24	0.90
1980/04/25	0.60
1980/04/26	0.50
1980/04/27	0.50
1980/04/28	0.50
1980/04/29	0.50
1980/04/30	0.40
1980/05/01	0.40
1980/05/02	0.50
1980/05/03	0.40
1980/05/04	0.50
1980/05/05	6.60
1980/05/06	15.40
1980/05/07	11.50
1980/05/08	7.80
1980/05/09	3.40
1980/05/10	2.40
1980/05/11	1.70
1980/05/12	1.40
1980/05/13	1.30
1980/05/14	1.20
1980/05/15	1.10
1980/05/16	0.70
1980/05/17	0.50
1980/05/18	0.40
1980/05/19	0.80
1980/05/20	3.20
1980/05/21	9.40
1980/05/22	11.80
1980/05/23	28.50
1980/05/24	40.20
1980/05/25	48.30
1980/05/26	33.50
1980/05/27	81.00
1980/05/28	36.00
1980/05/29	20.50
1980/05/30	18.70
1980/05/31	18.40
1980/06/01	17.20
1980/06/02	16.60
1980/06/03	19.00
1980/06/04	20.80
1980/06/05	19.90
1980/06/06	18.40
1980/06/07	17.50
1980/06/08	16.90
1980/06/09	16.60
1980/06/10	16.30
1980/06/11	16.30
1980/06/12	16.60
1980/06/13	19.60
1980/06/14	30.00
1980/06/15	22.80
1980/06/16	22.00
1980/06/17	21.70
1980/06/18	20.80
1980/06/19	19.60
1980/06/20	17.80
1980/06/21	16.60
1980/06/22	48.30
1980/06/23	61.60
1980/06/24	53.90
1980/06/25	42.00
1980/06/26	27.50
1980/06/27	25.60
1980/06/28	24.00
1980/06/29	21.10
1980/06/30	18.10
1980/07/01	17.20
1980/07/02	16.00
1980/07/03	15.40
1980/07/04	14.20
1980/07/05	10.00
1980/07/06	8.80
1980/07/07	9.40
1980/07/08	9.80
1980/07/09	11.80
1980/07/10	12.40
1980/07/11	12.40
1980/07/12	12.40
1980/07/13	12.70
1980/07/14	12.70
1980/07/15	12.40
1980/07/16	12.70
1980/07/17	12.70
1980/07/18	12.70
1980/07/19	12.40
1980/07/20	12.40
1980/07/21	12.10
1980/07/22	12.40
1980/07/23	25.20
1980/07/24	24.80
1980/07/25	22.40
1980/07/26	30.00
1980/07/27	32.00
1980/07/28	30.00
1980/07/29	33.50
1980/07/30	29.00
1980/07/31	22.00
1980/08/01	20.80
1980/08/02	20.50
1980/08/03	20.50
1980/08/04	20.20
1980/08/05	19.60
1980/08/06	17.50
1980/08/07	16.60
1980/08/08	14.80
1980/08/09	14.80
1980/08/10	13.90
1980/08/11	11.50
1980/08/12	10.60
1980/08/13	10.00
1980/08/14	9.20
1980/08/15	8.60
1980/08/16	9.60
1980/08/17	16.30
1980/08/18	31.00
1980/08/19	35.50
1980/08/20	33.50
1980/08/21	34.00
1980/08/22	31.00
1980/08/23	23.20
1980/08/24	24.80
1980/08/25	23.60
1980/08/26	22.00
1980/08/27	20.80
1980/08/28	19.00
1980/08/29	18.10
1980/08/30	18.40
1980/08/31	24.00
1980/09/01	30.50
1980/09/02	46.20
1980/09/03	60.20
1980/09/04	37.80
1980/09/05	30.00
1980/09/06	32.50
1980/09/07	36.60
1980/09/08	48.30
1980/09/09	65.80
1980/09/10	40.20
1980/09/11	33.50
1980/09/12	60.20
1980/09/13	53.20
1980/09/14	28.50
1980/09/15	28.50
1980/09/16	30.00
1980/09/17	31.00
1980/09/18	33.50
1980/09/19	32.00
1980/09/20	28.50
1980/09/21	24.00
1980/09/22	22.00
1980/09/23	28.00
1980/09/24	27.00
1980/09/25	28.50
1980/09/26	24.40
1980/09/27	24.40
1980/09/28	22.00
1980/09/29	21.10
1980/09/30	21.40
1980/10/01	22.00
1980/10/02	37.80
1980/10/03	88.60
1980/10/04	150.70
1980/10/05	84.20
1980/10/06	46.90
1980/10/07	32.00
1980/10/08	36.60
1980/10/09	33.50
1980/10/10	28.00
1980/10/11	25.20
1980/10/12	31.00
1980/10/13	28.50
1980/10/14	25.20
1980/10/15	23.60
1980/10/16	23.60
1980/10/17	24.80
1980/10/18	24.80
1980/10/19	24.40
1980/10/20	32.50
1980/10/21	27.00
1980/10/22	24.00
1980/10/23	24.80
1980/10/24	22.40
1980/10/25	21.40
1980/10/26	25.20
1980/10/27	23.20
1980/10/28	20.50
1980/10/29	19.00
1980/10/30	18.70
1980/10/31	21.10
1980/11/01	19.90
1980/11/02	21.10
1980/11/03	21.10
1980/11/04	20.80
1980/11/05	20.20
1980/11/06	20.20
1980/11/07	20.20
1980/11/08	20.50
1980/11/09	26.00
1980/11/10	21.40
1980/11/11	23.60
1980/11/12	22.40
1980/11/13	20.80
1980/11/14	21.10
1980/11/15	20.80
1980/11/16	20.80
1980/11/17	20.80
1980/11/18	21.10
1980/11/19	22.00
1980/11/20	23.60
1980/11/21	21.40
1980/11/22	21.10
1980/11/23	21.10
1980/11/24	21.10
1980/11/25	21.10
1980/11/26	21.10
1980/11/27	20.80
1980/11/28	20.80
1980/11/29	20.80
1980/11/30	20.80
1980/12/01	20.50
1980/12/02	20.20
1980/12/03	19.90
1980/12/04	19.90
1980/12/05	19.60
1980/12/06	19.60
1980/12/07	19.60
1980/12/08	19.30
1980/12/09	19.30
1980/12/10	19.30
1980/12/11	19.30
1980/12/12	19.30
1980/12/13	29.50
1980/12/14	25.20
1980/12/15	22.00
1980/12/16	20.80
1980/12/17	20.20
1980/12/18	20.20
1980/12/19	20.20
1980/12/20	19.90
1980/12/21	19.90
1980/12/22	19.30
1980/12/23	18.70
1980/12/24	18.10
1980/12/25	17.80
1980/12/26	17.20
1980/12/27	16.90
1980/12/28	16.60
1980/12/29	16.60
1980/12/30	16.30
1980/12/31	16.00
#===========================================
# Number of observations = 275 / 366
# Average = 20.51