1983/01/01	17.87
1983/01/02	17.10
1983/01/03	17.10
1983/01/04	17.10
1983/01/05	17.10
1983/01/06	19.42
1983/01/07	17.87
1983/01/08	19.42
1983/01/09	17.10
1983/01/10	16.32
1983/01/11	16.32
1983/01/12	16.32
1983/01/13	15.55
1983/01/14	15.55
1983/01/15	14.77
1983/01/16	14.00
1983/01/17	14.00
1983/01/18	14.00
1983/01/19	14.00
1983/01/20	14.00
1983/01/21	14.00
1983/01/22	16.32
1983/01/23	17.87
1983/01/24	14.77
1983/01/25	14.00
1983/01/26	13.30
1983/01/27	13.30
1983/01/28	13.30
1983/01/29	12.60
1983/01/30	12.60
1983/01/31	12.60
1983/02/01	12.60
1983/02/02	11.90
1983/02/03	11.90
1983/02/04	11.90
1983/02/05	11.20
1983/02/06	11.20
1983/02/07	11.20
1983/02/08	10.50
1983/02/09	10.50
1983/02/10	10.50
1983/02/11	10.50
1983/02/12	10.50
1983/02/13	9.80
1983/02/14	9.80
1983/02/15	9.80
1983/02/16	9.80
1983/02/17	9.10
1983/02/18	9.10
1983/02/19	9.10
1983/02/20	9.10
1983/02/21	9.10
1983/02/22	9.10
1983/02/23	8.40
1983/02/24	8.40
1983/02/25	8.40
1983/02/26	8.40
1983/02/27	8.40
1983/02/28	7.70
1983/03/01	7.70
1983/03/02	7.70
1983/03/03	7.00
1983/03/04	7.00
1983/03/05	7.00
1983/03/06	7.00
1983/03/07	7.00
1983/03/08	7.00
1983/03/09	7.00
1983/03/10	7.00
1983/03/11	6.30
1983/03/12	6.30
1983/03/13	6.30
1983/03/14	5.60
1983/03/15	5.60
1983/03/16	5.60
1983/03/17	5.60
1983/03/18	5.60
1983/03/19	6.30
1983/03/20	5.60
1983/03/21	5.60
1983/03/22	4.90
1983/03/23	4.90
1983/03/24	4.90
1983/03/25	4.20
1983/03/26	4.20
1983/03/27	3.50
1983/03/28	3.50
1983/03/29	3.50
1983/03/30	3.50
1983/03/31	3.50
1983/04/01	22.00
1983/04/02	20.40
1983/04/03	20.40
1983/04/04	19.60
1983/04/05	19.60
1983/04/06	19.60
1983/04/07	18.80
1983/04/08	18.80
1983/04/09	18.00
1983/04/10	18.00
1983/04/11	6.80
1983/04/12	6.80
1983/04/13	6.80
1983/04/14	6.80
1983/04/15	6.80
1983/04/16	6.80
1983/04/17	6.80
1983/04/18	6.80
1983/04/19	6.80
1983/04/20	16.60
1983/04/21	12.40
1983/04/22	27.60
1983/04/23	22.80
1983/04/24	13.10
1983/04/25	9.80
1983/04/26	6.20
1983/04/27	8.00
1983/04/28	7.40
1983/04/29	7.40
1983/04/30	6.80
1983/05/01	6.80
1983/05/02	8.60
1983/05/03	8.60
1983/05/04	15.90
1983/05/05	28.40
1983/05/06	22.80
1983/05/07	15.90
1983/05/08	34.00
1983/05/09	30.00
1983/05/10	28.40
1983/05/11	22.00
1983/05/12	14.50
1983/05/13	11.70
1983/05/14	9.80
1983/05/15	13.10
1983/05/16	11.00
1983/05/17	20.40
1983/05/18	13.80
1983/05/19	15.20
1983/05/20	10.40
1983/05/21	9.20
1983/05/22	8.00
1983/05/23	7.40
1983/05/24	7.40
1983/05/25	11.70
1983/05/26	8.00
1983/05/27	10.40
1983/05/28	11.00
1983/05/29	11.70
1983/05/30	21.20
1983/05/31	21.20
1983/06/01	19.60
1983/06/02	16.60
1983/06/03	14.50
1983/06/04	11.00
1983/06/05	9.80
1983/06/06	9.80
1983/06/07	15.20
1983/06/08	12.40
1983/06/09	21.20
1983/06/10	28.40
1983/06/11	20.40
1983/06/12	22.80
1983/06/13	62.70
1983/06/14	55.50
1983/06/15	29.20
1983/06/16	19.60
1983/06/17	14.50
1983/06/18	13.80
1983/06/19	12.40
1983/06/20	12.40
1983/06/21	11.00
1983/06/22	9.80
1983/06/23	9.20
1983/06/24	9.80
1983/06/25	11.70
1983/06/26	9.20
1983/06/27	13.10
1983/06/28	20.40
1983/06/29	32.40
1983/06/30	32.40
1983/07/01	26.80
1983/07/02	22.80
1983/07/03	18.00
1983/07/04	21.20
1983/07/05	27.60
1983/07/06	34.00
1983/07/07	25.20
1983/07/08	21.20
1983/07/09	18.00
1983/07/10	15.90
1983/07/11	15.20
1983/07/12	14.50
1983/07/13	20.40
1983/07/14	22.00
1983/07/15	31.60
1983/07/16	53.70
1983/07/17	46.50
1983/07/18	36.40
1983/07/19	55.50
1983/07/20	165.30
1983/07/21	87.00
1983/07/22	88.00
1983/07/23	107.00
1983/07/24	50.10
1983/07/25	69.00
1983/07/26	181.80
1983/07/27	225.43
1983/07/28	179.60
1983/07/29	168.60
1983/07/30	191.20
1983/07/31	168.60
1983/08/01	144.40
1983/08/02	176.30
1983/08/03	164.20
1983/08/04	169.70
1983/08/05	142.20
1983/08/06	148.80
1983/08/07	124.60
1983/08/08	125.70
1983/08/09	133.40
1983/08/10	131.20
1983/08/11	114.00
1983/08/12	125.70
1983/08/13	103.00
1983/08/14	83.00
1983/08/15	70.80
1983/08/16	65.40
1983/08/17	77.10
1983/08/18	86.00
1983/08/19	101.00
1983/08/20	154.30
1983/08/21	169.70
1983/08/22	171.90
1983/08/23	146.60
1983/08/24	124.60
1983/08/25	204.40
1983/08/26	315.80
1983/08/27	247.55
1983/08/28	235.75
1983/08/29	210.60
1983/08/30	169.70
1983/08/31	162.00
1983/09/01	129.00
1983/09/02	116.00
1983/09/03	112.00
1983/09/04	125.70
1983/09/05	119.10
1983/09/06	126.80
1983/09/07	147.70
1983/09/08	149.90
1983/09/09	119.10
1983/09/10	112.00
1983/09/11	112.00
1983/09/12	132.30
1983/09/13	200.80
1983/09/14	250.50
1983/09/15	199.60
1983/09/16	164.20
1983/09/17	146.60
1983/09/18	294.40
1983/09/19	240.17
1983/09/20	179.60
1983/09/21	181.80
1983/09/22	147.70
1983/09/23	124.60
1983/09/24	112.00
1983/09/25	110.00
1983/09/26	107.00
1983/09/27	114.00
1983/09/28	91.00
1983/09/29	105.00
1983/09/30	107.00
1983/10/01	88.00
1983/10/02	79.00
1983/10/03	131.20
1983/10/04	123.50
1983/10/05	215.80
1983/10/06	218.40
1983/10/07	198.40
1983/10/08	202.00
1983/10/09	165.30
1983/10/10	144.40
1983/10/11	127.90
1983/10/12	114.00
1983/10/13	103.00
1983/10/14	94.00
1983/10/15	86.00
1983/10/16	79.00
1983/10/17	84.00
1983/10/18	91.00
1983/10/19	92.00
1983/10/20	84.00
1983/10/21	74.40
1983/10/22	73.50
1983/10/23	72.60
1983/10/24	70.80
1983/10/25	68.10
1983/10/26	62.70
1983/10/27	57.30
1983/10/28	55.50
1983/10/29	56.40
1983/10/30	52.80
1983/10/31	51.00
1983/11/01	49.20
1983/11/02	48.30
1983/11/03	46.50
1983/11/04	45.60
1983/11/05	51.90
1983/11/06	46.50
1983/11/07	42.90
1983/11/08	41.20
1983/11/09	40.40
1983/11/10	39.60
1983/11/11	39.60
1983/11/12	44.70
1983/11/13	65.40
1983/11/14	46.50
1983/11/15	42.00
1983/11/16	40.40
1983/11/17	51.00
1983/11/18	42.90
1983/11/19	40.40
1983/11/20	38.80
1983/11/21	36.40
1983/11/22	35.60
1983/11/23	35.60
1983/11/24	34.80
1983/11/25	34.00
1983/11/26	33.20
1983/11/27	32.40
1983/11/28	31.60
1983/11/29	31.60
1983/11/30	30.00
1983/12/01	30.00
1983/12/02	30.00
1983/12/03	29.20
1983/12/04	28.40
1983/12/05	28.40
1983/12/06	27.60
1983/12/07	27.60
1983/12/08	26.80
1983/12/09	26.80
1983/12/10	26.00
1983/12/11	26.00
1983/12/12	26.00
1983/12/13	26.00
1983/12/14	25.20
1983/12/15	24.40
1983/12/16	24.40
1983/12/17	24.40
1983/12/18	23.60
1983/12/19	23.60
1983/12/20	22.80
1983/12/21	22.80
1983/12/22	22.00
1983/12/23	22.00
1983/12/24	22.00
1983/12/25	21.20
1983/12/26	21.20
1983/12/27	20.40
1983/12/28	20.40
1983/12/29	22.80
1983/12/30	30.80
1983/12/31	22.80
#===========================================
# Number of observations = 365 / 365
# Average = 51.49