1983/01/01	18.30
1983/01/02	17.95
1983/01/03	17.95
1983/01/04	17.95
1983/01/05	18.30
1983/01/06	17.95
1983/01/07	19.00
1983/01/08	21.80
1983/01/09	24.25
1983/01/10	23.20
1983/01/11	20.05
1983/01/12	18.30
1983/01/13	17.95
1983/01/14	17.60
1983/01/15	16.90
1983/01/16	16.55
1983/01/17	16.20
1983/01/18	16.20
1983/01/19	15.85
1983/01/20	15.20
1983/01/21	15.20
1983/01/22	14.90
1983/01/23	14.30
1983/01/24	14.00
1983/01/25	14.00
1983/01/26	14.00
1983/01/27	13.70
1983/01/28	13.70
1983/01/29	13.40
1983/01/30	13.40
1983/01/31	13.40
1983/02/01	12.80
1983/02/02	11.25
1983/02/03	10.75
1983/02/04	10.75
1983/02/05	10.75
1983/02/06	10.75
1983/02/07	10.75
1983/02/08	10.75
1983/02/09	10.25
1983/02/10	10.25
1983/02/11	10.25
1983/02/12	10.25
1983/02/13	10.25
1983/02/14	10.00
1983/02/15	10.00
1983/02/16	10.00
1983/02/17	10.00
1983/02/18	10.00
1983/02/19	10.00
1983/02/20	10.00
1983/02/21	10.25
1983/02/22	10.25
1983/02/23	10.25
1983/02/24	10.25
1983/02/25	10.25
1983/02/26	10.00
1983/02/27	9.75
1983/02/28	9.50
1983/03/01	8.25
1983/03/02	8.00
1983/03/03	8.00
1983/03/04	8.25
1983/03/05	8.25
1983/03/06	8.25
1983/03/07	7.75
1983/03/08	7.50
1983/03/09	7.30
1983/03/10	7.10
1983/03/11	7.30
1983/03/12	7.30
1983/03/13	7.30
1983/03/14	7.30
1983/03/15	7.10
1983/03/16	6.90
1983/03/17	6.70
1983/03/18	6.70
1983/03/19	6.50
1983/03/20	6.50
1983/03/21	6.70
1983/03/22	6.70
1983/03/23	7.10
1983/03/24	7.10
1983/03/25	6.90
1983/03/26	6.50
1983/03/27	6.30
1983/03/28	6.10
1983/03/29	5.90
1983/03/30	5.90
1983/03/31	5.90
1983/04/01	5.90
1983/04/02	5.70
1983/04/03	5.70
1983/04/04	5.50
1983/04/05	5.50
1983/04/06	5.50
1983/04/07	4.70
1983/04/08	4.30
1983/04/09	5.10
1983/04/10	5.30
1983/04/11	5.10
1983/04/12	4.90
1983/04/13	4.50
1983/04/14	4.50
1983/04/15	4.50
1983/04/16	4.50
1983/04/17	4.50
1983/04/18	4.50
1983/04/19	4.50
1983/04/20	4.70
1983/04/21	9.00
1983/04/22	6.30
1983/04/23	6.30
1983/04/24	9.25
1983/04/25	10.25
1983/04/26	10.50
1983/04/27	10.75
1983/04/28	7.50
1983/04/29	6.50
1983/04/30	5.70
1983/05/01	5.30
1983/05/02	5.10
1983/05/03	6.10
1983/05/04	11.75
1983/05/05	15.20
1983/05/06	17.60
1983/05/07	20.05
1983/05/08	16.55
1983/05/09	11.75
1983/05/10	10.00
1983/05/11	8.00
1983/05/12	8.00
1983/05/13	7.50
1983/05/14	6.90
1983/05/15	6.90
1983/05/16	9.00
1983/05/17	9.00
1983/05/18	8.25
1983/05/19	7.75
1983/05/20	8.00
1983/05/21	7.30
1983/05/22	6.70
1983/05/23	6.10
1983/05/24	5.70
1983/05/25	6.10
1983/05/26	9.00
1983/05/27	21.80
1983/05/28	30.40
1983/05/29	24.25
1983/05/30	18.30
1983/05/31	24.60
1983/06/01	32.40
1983/06/02	32.80
1983/06/03	36.40
1983/06/04	35.60
1983/06/05	25.30
1983/06/06	16.55
1983/06/07	14.30
1983/06/08	11.50
1983/06/09	15.85
1983/06/10	14.60
1983/06/11	24.95
1983/06/12	29.20
1983/06/13	24.60
1983/06/14	23.90
1983/06/15	22.50
1983/06/16	20.75
1983/06/17	17.60
1983/06/18	13.10
1983/06/19	10.50
1983/06/20	9.00
1983/06/21	8.00
1983/06/22	7.30
1983/06/23	6.90
1983/06/24	7.30
1983/06/25	9.50
1983/06/26	7.30
1983/06/27	8.50
1983/06/28	10.50
1983/06/29	37.20
1983/06/30	69.00
1983/07/01	74.00
1983/07/02	74.00
1983/07/03	55.00
1983/07/04	35.60
1983/07/05	26.40
1983/07/06	21.80
1983/07/07	17.60
1983/07/08	14.90
1983/07/09	12.80
1983/07/10	11.75
1983/07/11	10.75
1983/07/12	10.75
1983/07/13	21.80
1983/07/14	29.20
1983/07/15	20.75
1983/07/16	15.20
1983/07/17	17.25
1983/07/18	22.15
1983/07/19	24.25
1983/07/20	30.00
1983/07/21	31.20
1983/07/22	28.00
1983/07/23	26.00
1983/07/24	24.60
1983/07/25	22.50
1983/07/26	24.95
1983/07/27	23.20
1983/07/28	20.05
1983/07/29	19.70
1983/07/30	19.70
1983/07/31	24.95
1983/08/01	24.95
1983/08/02	31.60
1983/08/03	35.60
1983/08/04	48.80
1983/08/05	52.00
1983/08/06	48.40
1983/08/07	44.00
1983/08/08	43.20
1983/08/09	41.20
1983/08/10	44.80
1983/08/11	61.00
1983/08/12	78.30
1983/08/13	91.40
1983/08/14	89.60
1983/08/15	81.05
1983/08/16	66.50
1983/08/17	60.50
1983/08/18	56.00
1983/08/19	49.60
1983/08/20	52.00
1983/08/21	61.00
1983/08/22	93.80
1983/08/23	107.60
1983/08/24	102.20
1983/08/25	105.20
1983/08/26	108.20
1983/08/27	114.80
1983/08/28	128.60
1983/08/29	141.80
1983/08/30	139.85
1983/08/31	130.40
1983/09/01	121.40
1983/09/02	113.00
1983/09/03	105.80
1983/09/04	93.80
1983/09/05	88.40
1983/09/06	98.60
1983/09/07	134.00
1983/09/08	271.30
1983/09/09	221.80
1983/09/10	184.20
1983/09/11	162.80
1983/09/12	146.35
1983/09/13	158.05
1983/09/14	240.70
1983/09/15	304.00
1983/09/16	300.00
1983/09/17	300.00
1983/09/18	288.40
1983/09/19	267.70
1983/09/20	232.60
1983/09/21	209.80
1983/09/22	195.40
1983/09/23	181.80
1983/09/24	164.20
1983/09/25	141.15
1983/09/26	125.60
1983/09/27	111.20
1983/09/28	104.00
1983/09/29	95.60
1983/09/30	83.25
1983/10/01	75.00
1983/10/02	67.50
1983/10/03	63.00
1983/10/04	82.70
1983/10/05	160.00
1983/10/06	181.00
1983/10/07	218.60
1983/10/08	265.90
1983/10/09	269.50
1983/10/10	252.40
1983/10/11	217.00
1983/10/12	174.70
1983/10/13	145.05
1983/10/14	131.60
1983/10/15	132.20
1983/10/16	164.90
1983/10/17	178.20
1983/10/18	165.60
1983/10/19	152.85
1983/10/20	136.60
1983/10/21	114.80
1983/10/22	99.20
1983/10/23	90.20
1983/10/24	82.70
1983/10/25	76.65
1983/10/26	72.00
1983/10/27	68.00
1983/10/28	65.50
1983/10/29	61.00
1983/10/30	57.00
1983/10/31	54.00
1983/11/01	52.50
1983/11/02	52.00
1983/11/03	51.00
1983/11/04	48.80
1983/11/05	47.20
1983/11/06	47.20
1983/11/07	44.00
1983/11/08	41.20
1983/11/09	39.60
1983/11/10	38.40
1983/11/11	42.00
1983/11/12	82.15
1983/11/13	148.30
1983/11/14	109.40
1983/11/15	87.20
1983/11/16	65.50
1983/11/17	52.50
1983/11/18	52.50
1983/11/19	49.60
1983/11/20	44.40
1983/11/21	40.00
1983/11/22	37.20
1983/11/23	34.40
1983/11/24	32.40
1983/11/25	31.20
1983/11/26	28.40
1983/11/27	28.00
1983/11/28	26.80
1983/11/29	25.65
1983/11/30	24.95
1983/12/01	23.90
1983/12/02	23.20
1983/12/03	22.85
1983/12/04	22.50
1983/12/05	21.80
1983/12/06	21.10
1983/12/07	20.75
1983/12/08	19.35
1983/12/09	19.00
1983/12/10	18.65
1983/12/11	17.95
1983/12/12	17.95
1983/12/13	17.25
1983/12/14	16.55
1983/12/15	16.20
1983/12/16	15.85
1983/12/17	15.85
1983/12/18	15.50
1983/12/19	15.20
1983/12/20	14.60
1983/12/21	14.30
1983/12/22	14.00
1983/12/23	13.10
1983/12/24	13.10
1983/12/25	12.80
1983/12/26	12.50
1983/12/27	12.25
1983/12/28	11.75
1983/12/29	11.75
1983/12/30	12.25
1983/12/31	12.80
#===========================================
# Number of observations = 365 / 365
# Average = 45.65