1985/01/01	11.50
1985/01/02	11.20
1985/01/03	10.90
1985/01/04	10.90
1985/01/05	10.60
1985/01/06	10.30
1985/01/07	10.30
1985/01/08	10.00
1985/01/09	9.80
1985/01/10	9.60
1985/01/11	9.40
1985/01/12	9.00
1985/01/13	8.80
1985/01/14	8.60
1985/01/15	8.60
1985/01/16	8.60
1985/01/17	8.60
1985/01/18	8.40
1985/01/19	8.40
1985/01/20	8.00
1985/01/21	7.80
1985/01/22	7.60
1985/01/23	7.40
1985/01/24	7.20
1985/01/25	7.00
1985/01/26	7.00
1985/01/27	6.80
1985/01/28	6.80
1985/01/29	6.60
1985/01/30	6.60
1985/01/31	6.40
1985/02/01	6.40
1985/02/02	6.20
1985/02/03	6.00
1985/02/04	5.85
1985/02/05	5.85
1985/02/06	5.70
1985/02/07	5.55
1985/02/08	5.55
1985/02/09	5.40
1985/02/10	5.55
1985/02/11	5.70
1985/02/12	5.55
1985/02/13	5.25
1985/02/14	5.10
1985/02/15	4.95
1985/02/16	4.95
1985/02/17	4.95
1985/02/18	4.95
1985/02/19	4.80
1985/02/20	4.80
1985/02/21	4.65
1985/02/22	4.35
1985/02/23	4.20
1985/02/24	4.20
1985/02/25	4.20
1985/02/26	4.20
1985/02/27	4.05
1985/02/28	4.05
1985/03/01	3.90
1985/03/02	3.90
1985/03/03	3.75
1985/03/04	3.75
1985/03/05	3.75
1985/03/06	3.75
1985/03/07	3.60
1985/03/08	3.45
1985/03/09	3.30
1985/03/10	3.15
1985/03/11	3.45
1985/03/12	3.45
1985/03/13	3.30
1985/03/14	3.15
1985/03/15	3.00
1985/03/16	3.00
1985/03/17	3.00
1985/03/18	3.00
1985/03/19	3.00
1985/03/20	3.30
1985/03/21	3.15
1985/03/22	3.15
1985/03/23	3.15
1985/03/24	3.15
1985/03/25	3.15
1985/03/26	3.15
1985/03/27	3.00
1985/03/28	2.85
1985/03/29	2.85
1985/03/30	3.00
1985/03/31	3.75
1985/04/01	1.30
1985/04/02	1.00
1985/04/03	0.80
1985/04/04	0.80
1985/04/05	0.80
1985/04/06	0.70
1985/04/07	0.70
1985/04/08	0.70
1985/04/09	0.70
1985/04/10	0.70
1985/04/11	5.50
1985/04/12	0.70
1985/04/13	0.60
1985/04/14	0.50
1985/04/15	0.40
1985/04/16	0.40
1985/04/17	0.90
1985/04/18	1.00
1985/04/19	1.00
1985/04/20	1.90
1985/04/21	2.00
1985/04/22	1.90
1985/04/23	5.50
1985/04/24	5.50
1985/04/25	5.50
1985/04/26	5.50
1985/04/27	5.50
1985/04/28	5.50
1985/04/29	5.50
1985/04/30	5.50
1985/05/01	5.50
1985/05/02	23.00
1985/05/03	18.20
1985/05/04	11.00
1985/05/05	10.70
1985/05/06	9.50
1985/05/07	7.50
1985/05/08	10.10
1985/05/09	13.80
1985/05/10	11.80
1985/05/11	10.70
1985/05/12	9.80
1985/05/13	11.00
1985/05/14	15.00
1985/05/15	12.20
1985/05/16	9.20
1985/05/17	7.80
1985/05/18	6.50
1985/05/19	5.70
1985/05/20	5.50
1985/05/21	5.50
1985/05/22	5.50
1985/05/23	5.50
1985/05/24	5.50
1985/05/25	22.10
1985/05/26	58.60
1985/05/27	50.30
1985/05/28	57.80
1985/05/29	64.10
1985/05/30	117.60
1985/05/31	118.70
1985/06/01	92.00
1985/06/02	87.00
1985/06/03	100.00
1985/06/04	75.60
1985/06/05	68.00
1985/06/06	64.10
1985/06/07	48.00
1985/06/08	33.20
1985/06/09	24.00
1985/06/10	19.90
1985/06/11	16.60
1985/06/12	15.00
1985/06/13	13.80
1985/06/14	13.40
1985/06/15	18.60
1985/06/16	14.60
1985/06/17	12.20
1985/06/18	15.40
1985/06/19	31.40
1985/06/20	19.50
1985/06/21	15.80
1985/06/22	18.20
1985/06/23	19.00
1985/06/24	23.00
1985/06/25	19.50
1985/06/26	21.70
1985/06/27	22.60
1985/06/28	21.30
1985/06/29	19.00
1985/06/30	19.00
1985/07/01	19.90
1985/07/02	17.80
1985/07/03	17.00
1985/07/04	31.40
1985/07/05	26.20
1985/07/06	19.90
1985/07/07	17.00
1985/07/08	13.80
1985/07/09	12.20
1985/07/10	10.70
1985/07/11	10.10
1985/07/12	11.40
1985/07/13	11.40
1985/07/14	20.80
1985/07/15	63.30
1985/07/16	99.00
1985/07/17	124.40
1985/07/18	137.60
1985/07/19	109.90
1985/07/20	103.30
1985/07/21	86.00
1985/07/22	72.90
1985/07/23	64.10
1985/07/24	66.50
1985/07/25	66.50
1985/07/26	51.00
1985/07/27	44.70
1985/07/28	50.30
1985/07/29	60.20
1985/07/30	54.70
1985/07/31	53.20
1985/08/01	55.50
1985/08/02	51.00
1985/08/03	47.40
1985/08/04	53.20
1985/08/05	65.70
1985/08/06	53.20
1985/08/07	49.50
1985/08/08	45.40
1985/08/09	43.40
1985/08/10	44.10
1985/08/11	45.40
1985/08/12	45.40
1985/08/13	51.80
1985/08/14	54.70
1985/08/15	65.70
1985/08/16	67.20
1985/08/17	65.70
1985/08/18	72.90
1985/08/19	112.10
1985/08/20	247.60
1985/08/21	193.00
1985/08/22	200.00
1985/08/23	262.00
1985/08/24	344.60
1985/08/25	262.00
1985/08/26	198.60
1985/08/27	179.00
1985/08/28	167.80
1985/08/29	150.80
1985/08/30	137.60
1985/08/31	122.00
1985/09/01	108.80
1985/09/02	101.10
1985/09/03	170.60
1985/09/04	188.80
1985/09/05	255.60
1985/09/06	187.40
1985/09/07	150.80
1985/09/08	119.80
1985/09/09	100.00
1985/09/10	85.00
1985/09/11	73.80
1985/09/12	111.00
1985/09/13	440.60
1985/09/14	691.40
1985/09/15	547.00
1985/09/16	438.00
1985/09/17	591.60
1985/09/18	438.00
1985/09/19	344.60
1985/09/20	276.40
1985/09/21	195.80
1985/09/22	148.40
1985/09/23	118.70
1985/09/24	109.90
1985/09/25	111.00
1985/09/26	176.20
1985/09/27	268.40
1985/09/28	207.00
1985/09/29	167.80
1985/09/30	134.00
1985/10/01	134.00
1985/10/02	130.40
1985/10/03	143.60
1985/10/04	144.80
1985/10/05	142.40
1985/10/06	120.90
1985/10/07	96.00
1985/10/08	81.00
1985/10/09	71.20
1985/10/10	62.50
1985/10/11	55.50
1985/10/12	51.00
1985/10/13	47.40
1985/10/14	44.70
1985/10/15	44.10
1985/10/16	59.40
1985/10/17	92.00
1985/10/18	260.40
1985/10/19	431.40
1985/10/20	389.60
1985/10/21	440.60
1985/10/22	505.00
1985/10/23	372.00
1985/10/24	323.00
1985/10/25	260.40
1985/10/26	190.20
1985/10/27	148.40
1985/10/28	125.60
1985/10/29	109.90
1985/10/30	97.00
1985/10/31	103.30
1985/11/01	93.00
1985/11/02	80.00
1985/11/03	72.90
1985/11/04	68.80
1985/11/05	64.10
1985/11/06	60.20
1985/11/07	56.30
1985/11/08	53.20
1985/11/09	52.50
1985/11/10	48.00
1985/11/11	46.10
1985/11/12	45.40
1985/11/13	49.50
1985/11/14	97.00
1985/11/15	207.00
1985/11/16	301.40
1985/11/17	249.20
1985/11/18	195.80
1985/11/19	208.40
1985/11/20	402.80
1985/11/21	391.80
1985/11/22	330.20
1985/11/23	294.20
1985/11/24	236.40
1985/11/25	187.40
1985/11/26	154.40
1985/11/27	132.80
1985/11/28	117.60
1985/11/29	106.60
1985/11/30	97.00
1985/12/01	90.00
1985/12/02	83.00
1985/12/03	77.30
1985/12/04	72.00
1985/12/05	68.80
1985/12/06	65.70
1985/12/07	63.30
1985/12/08	60.20
1985/12/09	56.30
1985/12/10	53.20
1985/12/11	51.80
1985/12/12	48.00
1985/12/13	46.10
1985/12/14	44.10
1985/12/15	42.10
1985/12/16	41.50
1985/12/17	38.20
1985/12/18	35.60
1985/12/19	34.40
1985/12/20	30.80
1985/12/21	27.40
1985/12/22	27.40
1985/12/23	27.90
1985/12/24	26.80
1985/12/25	24.60
1985/12/26	22.10
1985/12/27	21.30
1985/12/28	20.80
1985/12/29	19.50
1985/12/30	19.50
1985/12/31	19.00
#===========================================
# Number of observations = 365 / 365
# Average = 70.10