1980/01/01	14.40
1980/01/02	12.50
1980/01/03	10.00
1980/01/04	9.50
1980/01/05	9.00
1980/01/06	8.00
1980/01/07	7.70
1980/01/08	7.10
1980/01/09	6.80
1980/01/10	6.50
1980/01/11	5.60
1980/01/12	5.60
1980/01/13	5.90
1980/01/14	5.00
1980/01/15	5.30
1980/01/16	6.20
1980/01/17	6.20
1980/01/18	5.30
1980/01/19	5.00
1980/01/20	4.70
1980/01/21	4.70
1980/01/22	4.10
1980/01/23	3.80
1980/01/24	3.80
1980/01/25	4.10
1980/01/26	4.40
1980/01/27	5.30
1980/01/28	5.30
1980/01/29	5.90
1980/01/30	7.10
1980/01/31	7.10
1980/02/01	5.60
1980/02/02	4.10
1980/02/03	3.50
1980/02/04	3.50
1980/02/05	3.50
1980/02/06	2.90
1980/02/07	2.60
1980/02/08	2.60
1980/02/09	2.30
1980/02/10	2.00
1980/02/11	2.00
1980/02/12	2.00
1980/02/13	1.80
1980/02/14	2.00
1980/02/15	2.30
1980/02/16	3.20
1980/02/17	3.80
1980/02/18	2.90
1980/02/19	2.30
1980/02/20	2.00
1980/02/21	1.60
1980/02/22	1.40
1980/02/23	1.00
1980/02/24	0.80
1980/02/25	0.80
1980/02/26	0.80
1980/02/27	0.80
1980/02/28	0.80
1980/02/29	0.80
1980/03/01	0.60
1980/03/02	0.60
1980/03/03	0.60
1980/03/04	0.60
1980/03/05	0.60
1980/03/06	0.60
1980/03/07	0.60
1980/03/08	0.40
1980/03/09	0.40
1980/03/10	0.40
1980/03/11	0.40
1980/03/12	0.40
1980/03/13	0.60
1980/03/14	0.60
1980/03/15	0.60
1980/03/16	0.60
1980/03/17	1.00
1980/03/18	3.20
1980/03/19	3.20
1980/03/20	2.90
1980/03/21	2.00
1980/03/22	0.80
1980/03/23	0.60
1980/03/24	0.60
1980/03/25	0.60
1980/03/26	0.60
1980/03/27	0.60
1980/03/28	0.80
1980/03/29	0.80
1980/03/30	0.80
1980/03/31	0.80
1980/04/01	3.20
1980/04/02	3.20
1980/04/03	3.20
1980/04/04	3.20
1980/04/05	3.20
1980/04/06	3.20
1980/04/07	3.20
1980/04/08	3.20
1980/04/09	3.20
1980/04/10	3.20
1980/04/11	2.90
1980/04/12	2.90
1980/04/13	2.90
1980/04/14	2.90
1980/04/15	2.90
1980/04/16	2.90
1980/04/17	2.90
1980/04/18	2.90
1980/04/19	2.60
1980/04/20	2.60
1980/04/21	2.60
1980/04/22	2.60
1980/04/23	2.60
1980/04/24	2.60
1980/04/25	2.60
1980/04/26	2.30
1980/04/27	2.30
1980/04/28	2.30
1980/04/29	2.30
1980/04/30	2.30
1980/05/01	0
1980/05/02	0
1980/05/03	0
1980/05/04	0
1980/05/05	0.80
1980/05/06	1.40
1980/05/07	1.00
1980/05/08	0.80
1980/05/09	0.50
1980/05/10	0.50
1980/05/11	0.30
1980/05/12	0.20
1980/05/13	0.10
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	0
1980/05/22	1.00
1980/05/23	1.70
1980/05/24	17.20
1980/05/25	63.00
1980/05/26	75.60
1980/05/27	53.80
1980/05/28	57.40
1980/05/29	61.60
1980/05/30	56.00
1980/05/31	52.70
1980/06/01	46.10
1980/06/02	42.00
1980/06/03	44.00
1980/06/04	58.80
1980/06/05	72.80
1980/06/06	63.00
1980/06/07	50.50
1980/06/08	45.00
1980/06/09	42.00
1980/06/10	40.00
1980/06/11	38.00
1980/06/12	37.00
1980/06/13	49.40
1980/06/14	54.90
1980/06/15	60.20
1980/06/16	63.00
1980/06/17	87.20
1980/06/18	84.00
1980/06/19	67.20
1980/06/20	85.60
1980/06/21	96.80
1980/06/22	90.40
1980/06/23	77.00
1980/06/24	74.20
1980/06/25	61.60
1980/06/26	53.80
1980/06/27	46.10
1980/06/28	53.80
1980/06/29	56.00
1980/06/30	60.20
1980/07/01	39.00
1980/07/02	33.20
1980/07/03	27.80
1980/07/04	22.50
1980/07/05	19.00
1980/07/06	16.00
1980/07/07	14.80
1980/07/08	13.60
1980/07/09	11.50
1980/07/10	10.50
1980/07/11	11.50
1980/07/12	12.00
1980/07/13	12.00
1980/07/14	14.20
1980/07/15	16.00
1980/07/16	13.60
1980/07/17	10.50
1980/07/18	8.50
1980/07/19	7.40
1980/07/20	7.40
1980/07/21	13.00
1980/07/22	25.30
1980/07/23	81.20
1980/07/24	100.00
1980/07/25	72.80
1980/07/26	68.60
1980/07/27	118.00
1980/07/28	188.40
1980/07/29	234.00
1980/07/30	210.00
1980/07/31	158.00
1980/08/01	146.00
1980/08/02	118.00
1980/08/03	77.00
1980/08/04	54.90
1980/08/05	54.90
1980/08/06	39.00
1980/08/07	36.00
1980/08/08	34.10
1980/08/09	34.10
1980/08/10	32.30
1980/08/11	29.60
1980/08/12	27.80
1980/08/13	26.00
1980/08/14	25.30
1980/08/15	23.20
1980/08/16	23.90
1980/08/17	31.40
1980/08/18	43.00
1980/08/19	77.00
1980/08/20	136.00
1980/08/21	120.00
1980/08/22	85.60
1980/08/23	78.40
1980/08/24	72.80
1980/08/25	103.60
1980/08/26	154.00
1980/08/27	136.00
1980/08/28	90.40
1980/08/29	63.00
1980/08/30	49.40
1980/08/31	56.00
1980/09/01	222.00
1980/09/02	398.50
1980/09/03	451.60
1980/09/04	471.10
1980/09/05	415.00
1980/09/06	352.00
1980/09/07	358.00
1980/09/08	388.00
1980/09/09	435.60
1980/09/10	466.00
1980/09/11	401.50
1980/09/12	376.00
1980/09/13	332.50
1980/09/14	256.06
1980/09/15	188.40
1980/09/16	193.80
1980/09/17	241.46
1980/09/18	242.92
1980/09/19	180.50
1980/09/20	128.00
1980/09/21	122.00
1980/09/22	114.40
1980/09/23	103.60
1980/09/24	93.60
1980/09/25	90.40
1980/09/26	78.40
1980/09/27	68.60
1980/09/28	65.80
1980/09/29	68.60
1980/09/30	68.60
1980/10/01	67.20
1980/10/02	71.40
1980/10/03	84.00
1980/10/04	138.00
1980/10/05	144.00
1980/10/06	107.20
1980/10/07	90.40
1980/10/08	84.00
1980/10/09	70.00
1980/10/10	58.80
1980/10/11	52.70
1980/10/12	65.80
1980/10/13	75.60
1980/10/14	64.40
1980/10/15	60.20
1980/10/16	68.60
1980/10/17	72.80
1980/10/18	67.20
1980/10/19	65.80
1980/10/20	84.00
1980/10/21	120.00
1980/10/22	90.40
1980/10/23	70.00
1980/10/24	60.20
1980/10/25	53.80
1980/10/26	49.40
1980/10/27	47.20
1980/10/28	44.00
1980/10/29	42.00
1980/10/30	40.00
1980/10/31	41.00
1980/11/01	41.00
1980/11/02	41.00
1980/11/03	40.00
1980/11/04	39.00
1980/11/05	38.00
1980/11/06	37.00
1980/11/07	37.00
1980/11/08	40.00
1980/11/09	44.00
1980/11/10	49.40
1980/11/11	52.70
1980/11/12	54.90
1980/11/13	53.80
1980/11/14	50.50
1980/11/15	49.40
1980/11/16	47.20
1980/11/17	48.30
1980/11/18	50.50
1980/11/19	46.10
1980/11/20	47.20
1980/11/21	48.30
1980/11/22	51.60
1980/11/23	53.80
1980/11/24	54.90
1980/11/25	54.90
1980/11/26	54.90
1980/11/27	53.80
1980/11/28	50.50
1980/11/29	48.30
1980/11/30	48.30
1980/12/01	48.30
1980/12/02	48.30
1980/12/03	47.20
1980/12/04	48.30
1980/12/05	49.40
1980/12/06	47.20
1980/12/07	45.00
1980/12/08	45.00
1980/12/09	45.00
1980/12/10	47.20
1980/12/11	49.40
1980/12/12	51.60
1980/12/13	74.20
1980/12/14	75.60
1980/12/15	75.60
1980/12/16	64.40
1980/12/17	56.00
1980/12/18	52.70
1980/12/19	49.40
1980/12/20	46.10
1980/12/21	45.00
1980/12/22	44.00
1980/12/23	43.00
1980/12/24	41.00
1980/12/25	41.00
1980/12/26	39.00
1980/12/27	36.00
1980/12/28	34.10
1980/12/29	33.20
1980/12/30	32.30
1980/12/31	31.40
#===========================================
# Number of observations = 366 / 366
# Total = 18830.8
# Average = 51.45