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	2.20
1980/04/02	2.20
1980/04/03	2.20
1980/04/04	2.50
1980/04/05	2.80
1980/04/06	2.80
1980/04/07	2.20
1980/04/08	3.40
1980/04/09	3.10
1980/04/10	31.00
1980/04/11	15.50
1980/04/12	11.50
1980/04/13	7.80
1980/04/14	9.00
1980/04/15	7.00
1980/04/16	6.70
1980/04/17	7.40
1980/04/18	6.10
1980/04/19	5.80
1980/04/20	5.20
1980/04/21	8.20
1980/04/22	6.10
1980/04/23	5.20
1980/04/24	4.90
1980/04/25	4.60
1980/04/26	4.60
1980/04/27	4.60
1980/04/28	4.60
1980/04/29	4.30
1980/04/30	4.00
1980/05/01	3.70
1980/05/02	4.00
1980/05/03	4.00
1980/05/04	4.30
1980/05/05	3.40
1980/05/06	3.40
1980/05/07	3.10
1980/05/08	3.10
1980/05/09	2.80
1980/05/10	3.40
1980/05/11	3.10
1980/05/12	2.80
1980/05/13	2.80
1980/05/14	2.80
1980/05/15	5.20
1980/05/16	5.80
1980/05/17	4.90
1980/05/18	5.50
1980/05/19	4.60
1980/05/20	3.70
1980/05/21	7.80
1980/05/22	7.80
1980/05/23	6.70
1980/05/24	5.80
1980/05/25	5.80
1980/05/26	5.50
1980/05/27	7.00
1980/05/28	8.60
1980/05/29	32.60
1980/05/30	16.50
1980/05/31	14.50
1980/06/01	11.00
1980/06/02	9.40
1980/06/03	25.80
1980/06/04	221.20
1980/06/05	166.20
1980/06/06	39.00
1980/06/07	39.80
1980/06/08	39.00
1980/06/09	24.00
1980/06/10	18.00
1980/06/11	15.50
1980/06/12	14.00
1980/06/13	21.00
1980/06/14	27.80
1980/06/15	20.00
1980/06/16	13.50
1980/06/17	10.60
1980/06/18	16.50
1980/06/19	19.50
1980/06/20	14.50
1980/06/21	29.40
1980/06/22	57.30
1980/06/23	38.20
1980/06/24	35.00
1980/06/25	30.20
1980/06/26	47.80
1980/06/27	49.40
1980/06/28	77.00
1980/06/29	81.00
1980/06/30	44.60
1980/07/01	23.40
1980/07/02	17.50
1980/07/03	14.50
1980/07/04	11.50
1980/07/05	9.40
1980/07/06	8.20
1980/07/07	7.40
1980/07/08	6.70
1980/07/09	6.10
1980/07/10	5.80
1980/07/11	6.70
1980/07/12	4.90
1980/07/13	4.60
1980/07/14	4.90
1980/07/15	4.90
1980/07/16	5.20
1980/07/17	5.20
1980/07/18	5.20
1980/07/19	4.90
1980/07/20	5.80
1980/07/21	7.00
1980/07/22	55.50
1980/07/23	60.00
1980/07/24	27.80
1980/07/25	197.80
1980/07/26	291.50
1980/07/27	408.80
1980/07/28	324.50
1980/07/29	381.50
1980/07/30	206.90
1980/07/31	133.20
1980/08/01	150.80
1980/08/02	146.40
1980/08/03	101.00
1980/08/04	80.00
1980/08/05	54.60
1980/08/06	43.00
1980/08/07	33.40
1980/08/08	27.00
1980/08/09	24.60
1980/08/10	33.40
1980/08/11	24.60
1980/08/12	21.00
1980/08/13	18.50
1980/08/14	16.50
1980/08/15	14.00
1980/08/16	12.50
1980/08/17	80.00
1980/08/18	50.20
1980/08/19	25.80
1980/08/20	27.80
1980/08/21	73.00
1980/08/22	77.00
1980/08/23	77.00
1980/08/24	70.00
1980/08/25	386.00
1980/08/26	386.00
1980/08/27	117.80
1980/08/28	118.90
1980/08/29	93.00
1980/08/30	73.00
1980/08/31	323.00
1980/09/01	763.80
1980/09/02	736.80
1980/09/03	656.00
1980/09/04	399.50
1980/09/05	628.00
1980/09/06	650.80
1980/09/07	567.30
1980/09/08	698.00
1980/09/09	664.80
1980/09/10	351.50
1980/09/11	309.50
1980/09/12	412.00
1980/09/13	300.50
1980/09/14	244.80
1980/09/15	212.10
1980/09/16	208.20
1980/09/17	321.50
1980/09/18	282.60
1980/09/19	257.40
1980/09/20	191.30
1980/09/21	149.70
1980/09/22	143.10
1980/09/23	143.10
1980/09/24	142.00
1980/09/25	172.20
1980/09/26	145.30
1980/09/27	145.30
1980/09/28	261.60
1980/09/29	124.40
1980/09/30	102.00
1980/10/01	86.00
1980/10/02	81.00
1980/10/03	70.00
1980/10/04	62.70
1980/10/05	56.40
1980/10/06	54.60
1980/10/07	55.50
1980/10/08	66.30
1980/10/09	70.00
1980/10/10	56.40
1980/10/11	56.40
1980/10/12	50.20
1980/10/13	48.60
1980/10/14	49.40
1980/10/15	65.40
1980/10/16	59.10
1980/10/17	70.00
1980/10/18	72.00
1980/10/19	60.90
1980/10/20	64.50
1980/10/21	56.40
1980/10/22	62.70
1980/10/23	55.50
1980/10/24	47.80
1980/10/25	43.80
1980/10/26	38.20
1980/10/27	35.80
1980/10/28	31.80
1980/10/29	29.40
1980/10/30	27.00
1980/10/31	26.40
1980/11/01	24.00
1980/11/02	22.80
1980/11/03	21.60
1980/11/04	21.60
1980/11/05	20.00
1980/11/06	20.00
1980/11/07	19.00
1980/11/08	18.50
1980/11/09	19.50
1980/11/10	18.50
1980/11/11	18.00
1980/11/12	17.00
1980/11/13	16.50
1980/11/14	17.00
1980/11/15	15.00
1980/11/16	14.50
1980/11/17	16.50
1980/11/18	14.50
1980/11/19	13.00
1980/11/20	11.50
1980/11/21	11.00
1980/11/22	11.00
1980/11/23	11.50
1980/11/24	12.50
1980/11/25	14.00
1980/11/26	14.50
1980/11/27	14.50
1980/11/28	14.50
1980/11/29	14.00
1980/11/30	14.00
1980/12/01	15.00
1980/12/02	13.50
1980/12/03	12.50
1980/12/04	12.50
1980/12/05	12.50
1980/12/06	11.50
1980/12/07	9.80
1980/12/08	9.00
1980/12/09	9.00
1980/12/10	8.60
1980/12/11	7.40
1980/12/12	7.00
1980/12/13	7.00
1980/12/14	7.80
1980/12/15	17.00
1980/12/16	19.50
1980/12/17	15.50
1980/12/18	12.50
1980/12/19	9.80
1980/12/20	9.00
1980/12/21	7.80
1980/12/22	7.80
1980/12/23	7.00
1980/12/24	7.00
1980/12/25	6.10
1980/12/26	6.10
1980/12/27	6.40
1980/12/28	5.80
1980/12/29	5.20
1980/12/30	5.20
1980/12/31	5.20
#===========================================
# Number of observations = 275 / 366
# Average = 71.12