1983/01/01	14.00
1983/01/02	14.00
1983/01/03	14.00
1983/01/04	14.35
1983/01/05	14.35
1983/01/06	14.35
1983/01/07	14.00
1983/01/08	14.00
1983/01/09	13.70
1983/01/10	13.70
1983/01/11	13.70
1983/01/12	13.70
1983/01/13	13.40
1983/01/14	13.40
1983/01/15	13.40
1983/01/16	13.40
1983/01/17	13.40
1983/01/18	13.40
1983/01/19	13.40
1983/01/20	13.40
1983/01/21	13.70
1983/01/22	14.35
1983/01/23	14.35
1983/01/24	13.40
1983/01/25	13.40
1983/01/26	13.10
1983/01/27	13.10
1983/01/28	13.10
1983/01/29	13.10
1983/01/30	13.10
1983/01/31	12.80
1983/02/01	12.80
1983/02/02	12.80
1983/02/03	12.80
1983/02/04	12.80
1983/02/05	12.50
1983/02/06	12.50
1983/02/07	12.50
1983/02/08	12.50
1983/02/09	12.50
1983/02/10	12.50
1983/02/11	12.50
1983/02/12	12.50
1983/02/13	12.20
1983/02/14	12.20
1983/02/15	12.20
1983/02/16	11.90
1983/02/17	11.90
1983/02/18	11.60
1983/02/19	11.60
1983/02/20	11.60
1983/02/21	11.60
1983/02/22	11.60
1983/02/23	11.60
1983/02/24	11.30
1983/02/25	11.30
1983/02/26	11.30
1983/02/27	11.30
1983/02/28	11.00
1983/03/01	11.00
1983/03/02	11.00
1983/03/03	11.00
1983/03/04	11.00
1983/03/05	10.70
1983/03/06	10.70
1983/03/07	12.80
1983/03/08	13.40
1983/03/09	12.80
1983/03/10	11.30
1983/03/11	11.00
1983/03/12	11.00
1983/03/13	11.00
1983/03/14	10.70
1983/03/15	11.00
1983/03/16	11.00
1983/03/17	11.60
1983/03/18	11.30
1983/03/19	11.00
1983/03/20	11.00
1983/03/21	11.00
1983/03/22	10.70
1983/03/23	10.70
1983/03/24	10.70
1983/03/25	10.70
1983/03/26	10.40
1983/03/27	10.40
1983/03/28	10.40
1983/03/29	10.10
1983/03/30	10.10
1983/03/31	10.10
1983/04/01	11.30
1983/04/02	12.50
1983/04/03	12.20
1983/04/04	11.90
1983/04/05	11.60
1983/04/06	11.60
1983/04/07	11.30
1983/04/08	11.30
1983/04/09	11.00
1983/04/10	11.00
1983/04/11	11.00
1983/04/12	11.00
1983/04/13	11.00
1983/04/14	10.70
1983/04/15	10.40
1983/04/16	10.10
1983/04/17	10.40
1983/04/18	10.70
1983/04/19	11.00
1983/04/20	14.00
1983/04/21	14.35
1983/04/22	15.05
1983/04/23	14.70
1983/04/24	13.70
1983/04/25	12.80
1983/04/26	10.70
1983/04/27	10.10
1983/04/28	10.10
1983/04/29	9.80
1983/04/30	9.80
1983/05/01	13.10
1983/05/02	14.70
1983/05/03	17.15
1983/05/04	13.70
1983/05/05	13.40
1983/05/06	14.00
1983/05/07	13.70
1983/05/08	14.35
1983/05/09	16.80
1983/05/10	16.45
1983/05/11	14.00
1983/05/12	12.50
1983/05/13	11.90
1983/05/14	12.20
1983/05/15	12.50
1983/05/16	12.20
1983/05/17	13.10
1983/05/18	13.70
1983/05/19	12.20
1983/05/20	11.90
1983/05/21	11.00
1983/05/22	10.70
1983/05/23	10.40
1983/05/24	9.80
1983/05/25	11.90
1983/05/26	11.30
1983/05/27	11.30
1983/05/28	14.70
1983/05/29	26.45
1983/05/30	16.45
1983/05/31	15.05
1983/06/01	14.00
1983/06/02	13.40
1983/06/03	12.80
1983/06/04	12.80
1983/06/05	13.10
1983/06/06	12.50
1983/06/07	12.20
1983/06/08	12.50
1983/06/09	13.70
1983/06/10	15.75
1983/06/11	15.40
1983/06/12	14.35
1983/06/13	22.85
1983/06/14	19.50
1983/06/15	17.15
1983/06/16	15.05
1983/06/17	13.40
1983/06/18	13.10
1983/06/19	12.20
1983/06/20	11.90
1983/06/21	12.20
1983/06/22	11.90
1983/06/23	12.20
1983/06/24	12.80
1983/06/25	13.70
1983/06/26	13.40
1983/06/27	13.10
1983/06/28	14.35
1983/06/29	31.50
1983/06/30	26.90
1983/07/01	24.65
1983/07/02	17.90
1983/07/03	17.15
1983/07/04	15.75
1983/07/05	16.10
1983/07/06	16.45
1983/07/07	16.45
1983/07/08	16.10
1983/07/09	15.05
1983/07/10	13.70
1983/07/11	14.00
1983/07/12	13.70
1983/07/13	13.70
1983/07/14	13.70
1983/07/15	14.35
1983/07/16	15.05
1983/07/17	15.05
1983/07/18	16.45
1983/07/19	49.75
1983/07/20	55.60
1983/07/21	27.80
1983/07/22	22.40
1983/07/23	39.50
1983/07/24	30.05
1983/07/25	34.00
1983/07/26	29.60
1983/07/27	33.50
1983/07/28	61.60
1983/07/29	49.10
1983/07/30	45.30
1983/07/31	39.00
1983/08/01	35.50
1983/08/02	68.10
1983/08/03	51.70
1983/08/04	40.50
1983/08/05	44.10
1983/08/06	43.50
1983/08/07	35.50
1983/08/08	44.10
1983/08/09	64.40
1983/08/10	50.40
1983/08/11	44.70
1983/08/12	40.00
1983/08/13	35.50
1983/08/14	31.50
1983/08/15	27.35
1983/08/16	27.80
1983/08/17	80.90
1983/08/18	42.30
1983/08/19	33.50
1983/08/20	37.50
1983/08/21	39.50
1983/08/22	54.95
1983/08/23	45.30
1983/08/24	42.30
1983/08/25	109.00
1983/08/26	129.00
1983/08/27	137.00
1983/08/28	90.15
1983/08/29	63.00
1983/08/30	54.30
1983/08/31	49.75
1983/09/01	41.70
1983/09/02	39.50
1983/09/03	38.50
1983/09/04	47.15
1983/09/05	56.90
1983/09/06	58.85
1983/09/07	52.35
1983/09/08	49.10
1983/09/09	45.30
1983/09/10	39.50
1983/09/11	44.10
1983/09/12	112.00
1983/09/13	91.90
1983/09/14	100.90
1983/09/15	76.10
1983/09/16	62.30
1983/09/17	84.20
1983/09/18	62.30
1983/09/19	52.35
1983/09/20	45.90
1983/09/21	44.70
1983/09/22	55.60
1983/09/23	42.90
1983/09/24	37.50
1983/09/25	35.00
1983/09/26	32.00
1983/09/27	34.50
1983/09/28	32.50
1983/09/29	29.60
1983/09/30	28.25
1983/10/01	26.45
1983/10/02	26.00
1983/10/03	27.35
1983/10/04	34.50
1983/10/05	76.10
1983/10/06	76.10
1983/10/07	79.30
1983/10/08	66.50
1983/10/09	63.00
1983/10/10	51.05
1983/10/11	43.50
1983/10/12	39.00
1983/10/13	36.50
1983/10/14	33.50
1983/10/15	32.00
1983/10/16	31.00
1983/10/17	32.00
1983/10/18	32.50
1983/10/19	31.00
1983/10/20	34.50
1983/10/21	30.05
1983/10/22	29.15
1983/10/23	27.35
1983/10/24	26.45
1983/10/25	31.00
1983/10/26	27.35
1983/10/27	74.50
1983/10/28	23.75
1983/10/29	25.55
1983/10/30	24.20
1983/10/31	22.40
1983/11/01	22.40
1983/11/02	21.95
1983/11/03	21.10
1983/11/04	23.30
1983/11/05	30.05
1983/11/06	26.90
1983/11/07	25.10
1983/11/08	23.30
1983/11/09	22.40
1983/11/10	21.50
1983/11/11	21.50
1983/11/12	23.30
1983/11/13	64.40
1983/11/14	35.00
1983/11/15	30.05
1983/11/16	27.80
1983/11/17	26.00
1983/11/18	23.75
1983/11/19	22.40
1983/11/20	21.95
1983/11/21	21.50
1983/11/22	21.10
1983/11/23	20.70
1983/11/24	19.90
1983/11/25	19.50
1983/11/26	18.70
1983/11/27	18.30
1983/11/28	18.30
1983/11/29	17.90
1983/11/30	17.50
1983/12/01	17.50
1983/12/02	17.15
1983/12/03	17.50
1983/12/04	17.15
1983/12/05	17.15
1983/12/06	16.80
1983/12/07	16.45
1983/12/08	16.45
1983/12/09	16.45
1983/12/10	16.45
1983/12/11	16.10
1983/12/12	16.10
1983/12/13	16.10
1983/12/14	15.75
1983/12/15	15.75
1983/12/16	15.75
1983/12/17	15.75
1983/12/18	15.40
1983/12/19	15.40
1983/12/20	15.40
1983/12/21	15.40
1983/12/22	15.40
1983/12/23	15.05
1983/12/24	15.05
1983/12/25	15.05
1983/12/26	14.70
1983/12/27	14.70
1983/12/28	15.05
1983/12/29	17.90
1983/12/30	16.45
1983/12/31	15.40
#===========================================
# Number of observations = 365 / 365
# Average = 24.19