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	0.13
1980/04/02	0.15
1980/04/03	0.35
1980/04/04	0.20
1980/04/05	0.19
1980/04/06	0.18
1980/04/07	0.17
1980/04/08	0.16
1980/04/09	0.15
1980/04/10	0.13
1980/04/11	0.12
1980/04/12	0.11
1980/04/13	0.10
1980/04/14	0.10
1980/04/15	0.10
1980/04/16	0.11
1980/04/17	0.85
1980/04/18	0.65
1980/04/19	0.35
1980/04/20	0.26
1980/04/21	0.26
1980/04/22	0.19
1980/04/23	0.18
1980/04/24	0.16
1980/04/25	0.15
1980/04/26	0.14
1980/04/27	0.13
1980/04/28	0.13
1980/04/29	0.14
1980/04/30	0.18
1980/05/01	0.16
1980/05/02	0.14
1980/05/03	0.12
1980/05/04	0.11
1980/05/05	0.11
1980/05/06	0.10
1980/05/07	0.10
1980/05/08	0.10
1980/05/09	0.10
1980/05/10	0.11
1980/05/11	0.11
1980/05/12	0.11
1980/05/13	0.13
1980/05/14	0.15
1980/05/15	0.14
1980/05/16	0.13
1980/05/17	0.13
1980/05/18	0.12
1980/05/19	0.12
1980/05/20	0.29
1980/05/21	79.00
1980/05/22	292.53
1980/05/23	238.00
1980/05/24	110.40
1980/05/25	60.60
1980/05/26	37.50
1980/05/27	28.05
1980/05/28	23.50
1980/05/29	24.30
1980/05/30	35.00
1980/05/31	27.20
1980/06/01	17.15
1980/06/02	13.10
1980/06/03	11.60
1980/06/04	14.70
1980/06/05	13.40
1980/06/06	17.15
1980/06/07	17.90
1980/06/08	15.40
1980/06/09	21.10
1980/06/10	22.30
1980/06/11	18.70
1980/06/12	13.70
1980/06/13	30.60
1980/06/14	30.18
1980/06/15	30.60
1980/06/16	42.50
1980/06/17	66.60
1980/06/18	181.00
1980/06/19	114.40
1980/06/20	86.70
1980/06/21	79.00
1980/06/22	61.20
1980/06/23	47.50
1980/06/24	37.00
1980/06/25	36.00
1980/06/26	33.58
1980/06/27	25.93
1980/06/28	21.10
1980/06/29	16.80
1980/06/30	14.00
1980/07/01	12.80
1980/07/02	11.00
1980/07/03	9.20
1980/07/04	7.60
1980/07/05	7.60
1980/07/06	10.40
1980/07/07	8.90
1980/07/08	7.00
1980/07/09	13.10
1980/07/10	19.10
1980/07/11	17.90
1980/07/12	12.80
1980/07/13	9.20
1980/07/14	7.80
1980/07/15	6.20
1980/07/16	6.40
1980/07/17	6.80
1980/07/18	6.40
1980/07/19	5.40
1980/07/20	5.60
1980/07/21	11.90
1980/07/22	16.45
1980/07/23	16.80
1980/07/24	12.80
1980/07/25	11.30
1980/07/26	22.30
1980/07/27	44.00
1980/07/28	41.00
1980/07/29	34.00
1980/07/30	28.48
1980/07/31	21.90
1980/08/01	23.90
1980/08/02	52.50
1980/08/03	44.00
1980/08/04	30.60
1980/08/05	26.78
1980/08/06	22.30
1980/08/07	17.50
1980/08/08	16.10
1980/08/09	15.40
1980/08/10	15.05
1980/08/11	21.50
1980/08/12	19.50
1980/08/13	16.10
1980/08/14	13.10
1980/08/15	13.10
1980/08/16	18.30
1980/08/17	29.75
1980/08/18	32.73
1980/08/19	32.30
1980/08/20	31.88
1980/08/21	38.50
1980/08/22	40.00
1980/08/23	31.88
1980/08/24	32.30
1980/08/25	30.60
1980/08/26	26.35
1980/08/27	21.50
1980/08/28	17.50
1980/08/29	13.70
1980/08/30	31.45
1980/08/31	24.70
1980/09/01	13.10
1980/09/02	32.73
1980/09/03	27.63
1980/09/04	25.50
1980/09/05	24.70
1980/09/06	27.63
1980/09/07	26.35
1980/09/08	23.50
1980/09/09	21.50
1980/09/10	21.50
1980/09/11	28.48
1980/09/12	36.00
1980/09/13	33.58
1980/09/14	26.35
1980/09/15	19.50
1980/09/16	15.40
1980/09/17	13.70
1980/09/18	21.50
1980/09/19	58.80
1980/09/20	131.20
1980/09/21	116.80
1980/09/22	95.80
1980/09/23	79.70
1980/09/24	72.70
1980/09/25	68.40
1980/09/26	63.00
1980/09/27	53.00
1980/09/28	47.50
1980/09/29	94.40
1980/09/30	172.00
1980/10/01	227.20
1980/10/02	338.53
1980/10/03	277.20
1980/10/04	192.00
1980/10/05	132.80
1980/10/06	96.50
1980/10/07	122.40
1980/10/08	125.60
1980/10/09	112.80
1980/10/10	90.20
1980/10/11	69.60
1980/10/12	58.80
1980/10/13	51.00
1980/10/14	50.50
1980/10/15	43.00
1980/10/16	41.00
1980/10/17	51.00
1980/10/18	47.00
1980/10/19	37.50
1980/10/20	36.50
1980/10/21	38.50
1980/10/22	38.00
1980/10/23	31.45
1980/10/24	28.48
1980/10/25	25.10
1980/10/26	23.10
1980/10/27	25.10
1980/10/28	22.30
1980/10/29	18.30
1980/10/30	15.75
1980/10/31	16.10
1980/11/01	17.15
1980/11/02	15.75
1980/11/03	13.70
1980/11/04	12.80
1980/11/05	12.20
1980/11/06	11.30
1980/11/07	10.40
1980/11/08	17.50
1980/11/09	23.90
1980/11/10	16.45
1980/11/11	13.40
1980/11/12	11.30
1980/11/13	10.10
1980/11/14	9.50
1980/11/15	8.90
1980/11/16	8.00
1980/11/17	7.60
1980/11/18	7.20
1980/11/19	6.80
1980/11/20	6.80
1980/11/21	6.80
1980/11/22	6.60
1980/11/23	6.40
1980/11/24	6.00
1980/11/25	5.60
1980/11/26	5.60
1980/11/27	5.40
1980/11/28	5.20
1980/11/29	5.00
1980/11/30	4.80
1980/12/01	4.60
1980/12/02	4.60
1980/12/03	4.60
1980/12/04	4.20
1980/12/05	4.20
1980/12/06	3.85
1980/12/07	3.85
1980/12/08	3.85
1980/12/09	3.85
1980/12/10	3.70
1980/12/11	3.70
1980/12/12	3.55
1980/12/13	3.55
1980/12/14	3.40
1980/12/15	3.40
1980/12/16	3.40
1980/12/17	3.40
1980/12/18	3.25
1980/12/19	3.10
1980/12/20	2.95
1980/12/21	2.80
1980/12/22	2.80
1980/12/23	2.65
1980/12/24	2.65
1980/12/25	2.65
1980/12/26	2.43
1980/12/27	2.43
1980/12/28	2.43
1980/12/29	2.43
1980/12/30	2.43
1980/12/31	2.43
#===========================================
# Number of observations = 275 / 366
# Average = 28.16