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
1980/04/02	0
1980/04/03	0
1980/04/04	0
1980/04/05	0
1980/04/06	0
1980/04/07	0
1980/04/08	0
1980/04/09	0
1980/04/10	0
1980/04/11	0
1980/04/12	0
1980/04/13	0
1980/04/14	0
1980/04/15	0
1980/04/16	0
1980/04/17	0
1980/04/18	0
1980/04/19	0
1980/04/20	0
1980/04/21	0
1980/04/22	0
1980/04/23	0
1980/04/24	0
1980/04/25	0
1980/04/26	0
1980/04/27	0
1980/04/28	0
1980/04/29	0
1980/04/30	0
1980/05/01	0
1980/05/02	0
1980/05/03	0
1980/05/04	0
1980/05/05	0
1980/05/06	0
1980/05/07	0
1980/05/08	0
1980/05/09	0
1980/05/10	0
1980/05/11	0
1980/05/12	0
1980/05/13	0
1980/05/14	0
1980/05/15	0
1980/05/16	0
1980/05/17	0
1980/05/18	0
1980/05/19	0
1980/05/20	0
1980/05/21	36.00
1980/05/22	253.00
1980/05/23	205.90
1980/05/24	72.20
1980/05/25	43.50
1980/05/26	33.20
1980/05/27	28.00
1980/05/28	24.00
1980/05/29	25.20
1980/05/30	22.25
1980/05/31	20.50
1980/06/01	18.40
1980/06/02	28.80
1980/06/03	21.20
1980/06/04	19.45
1980/06/05	20.15
1980/06/06	17.70
1980/06/07	23.65
1980/06/08	22.95
1980/06/09	20.50
1980/06/10	19.10
1980/06/11	18.05
1980/06/12	22.60
1980/06/13	59.00
1980/06/14	67.70
1980/06/15	46.00
1980/06/16	58.50
1980/06/17	51.00
1980/06/18	83.00
1980/06/19	51.00
1980/06/20	38.00
1980/06/21	32.80
1980/06/22	69.90
1980/06/23	54.50
1980/06/24	50.00
1980/06/25	48.00
1980/06/26	41.00
1980/06/27	33.60
1980/06/28	30.00
1980/06/29	26.80
1980/06/30	23.65
1980/07/01	22.95
1980/07/02	21.90
1980/07/03	19.80
1980/07/04	25.60
1980/07/05	28.80
1980/07/06	22.60
1980/07/07	20.85
1980/07/08	19.10
1980/07/09	18.40
1980/07/10	19.45
1980/07/11	18.75
1980/07/12	19.45
1980/07/13	18.05
1980/07/14	16.40
1980/07/15	18.05
1980/07/16	29.20
1980/07/17	20.15
1980/07/18	18.75
1980/07/19	18.40
1980/07/20	18.05
1980/07/21	24.80
1980/07/22	26.80
1980/07/23	24.40
1980/07/24	27.60
1980/07/25	25.20
1980/07/26	68.80
1980/07/27	57.00
1980/07/28	43.50
1980/07/29	42.50
1980/07/30	39.60
1980/07/31	32.00
1980/08/01	36.00
1980/08/02	59.00
1980/08/03	46.50
1980/08/04	41.00
1980/08/05	31.20
1980/08/06	27.20
1980/08/07	23.30
1980/08/08	21.90
1980/08/09	32.00
1980/08/10	29.20
1980/08/11	52.00
1980/08/12	47.00
1980/08/13	38.40
1980/08/14	30.00
1980/08/15	27.20
1980/08/16	30.80
1980/08/17	35.20
1980/08/18	32.40
1980/08/19	31.20
1980/08/20	43.00
1980/08/21	37.20
1980/08/22	32.00
1980/08/23	28.40
1980/08/24	32.00
1980/08/25	41.00
1980/08/26	35.20
1980/08/27	31.60
1980/08/28	27.20
1980/08/29	24.00
1980/08/30	21.55
1980/08/31	26.80
1980/09/01	56.00
1980/09/02	43.00
1980/09/03	36.80
1980/09/04	34.40
1980/09/05	37.20
1980/09/06	33.20
1980/09/07	34.00
1980/09/08	34.80
1980/09/09	38.80
1980/09/10	46.00
1980/09/11	38.00
1980/09/12	36.40
1980/09/13	32.80
1980/09/14	29.20
1980/09/15	43.00
1980/09/16	25.20
1980/09/17	21.20
1980/09/18	26.40
1980/09/19	79.40
1980/09/20	120.10
1980/09/21	113.10
1980/09/22	62.20
1980/09/23	52.50
1980/09/24	55.00
1980/09/25	58.00
1980/09/26	44.00
1980/09/27	36.40
1980/09/28	34.40
1980/09/29	35.20
1980/09/30	63.30
1980/10/01	102.60
1980/10/02	192.40
1980/10/03	204.10
1980/10/04	150.20
1980/10/05	83.00
1980/10/06	66.60
1980/10/07	112.40
1980/10/08	150.20
1980/10/09	103.30
1980/10/10	67.70
1980/10/11	54.00
1980/10/12	45.50
1980/10/13	40.50
1980/10/14	44.00
1980/10/15	35.60
1980/10/16	35.20
1980/10/17	40.50
1980/10/18	37.20
1980/10/19	33.60
1980/10/20	35.60
1980/10/21	36.80
1980/10/22	36.40
1980/10/23	32.00
1980/10/24	31.20
1980/10/25	28.00
1980/10/26	25.20
1980/10/27	25.60
1980/10/28	24.00
1980/10/29	21.55
1980/10/30	20.15
1980/10/31	21.90
1980/11/01	24.40
1980/11/02	20.15
1980/11/03	18.75
1980/11/04	17.35
1980/11/05	17.00
1980/11/06	16.10
1980/11/07	15.20
1980/11/08	14.90
1980/11/09	15.50
1980/11/10	15.80
1980/11/11	14.30
1980/11/12	13.70
1980/11/13	12.80
1980/11/14	12.50
1980/11/15	12.20
1980/11/16	11.90
1980/11/17	11.30
1980/11/18	11.00
1980/11/19	10.75
1980/11/20	11.00
1980/11/21	10.50
1980/11/22	10.50
1980/11/23	10.50
1980/11/24	10.25
1980/11/25	9.75
1980/11/26	9.75
1980/11/27	9.75
1980/11/28	9.50
1980/11/29	9.50
1980/11/30	9.00
1980/12/01	9.00
1980/12/02	8.50
1980/12/03	8.50
1980/12/04	8.25
1980/12/05	8.25
1980/12/06	8.25
1980/12/07	8.25
1980/12/08	7.75
1980/12/09	7.75
1980/12/10	8.00
1980/12/11	7.75
1980/12/12	7.50
1980/12/13	7.25
1980/12/14	7.25
1980/12/15	7.25
1980/12/16	7.00
1980/12/17	6.75
1980/12/18	6.75
1980/12/19	6.75
1980/12/20	6.50
1980/12/21	6.50
1980/12/22	6.25
1980/12/23	6.25
1980/12/24	6.00
1980/12/25	6.00
1980/12/26	5.80
1980/12/27	5.60
1980/12/28	5.60
1980/12/29	5.60
1980/12/30	5.40
1980/12/31	5.20
#===========================================
# Number of observations = 275 / 366
# Average = 28.03