1983/01/01	20.90
1983/01/02	20.90
1983/01/03	20.40
1983/01/04	20.40
1983/01/05	20.00
1983/01/06	19.50
1983/01/07	18.60
1983/01/08	18.20
1983/01/09	17.70
1983/01/10	16.80
1983/01/11	15.90
1983/01/12	14.80
1983/01/13	14.10
1983/01/14	13.80
1983/01/15	13.00
1983/01/16	13.40
1983/01/17	13.40
1983/01/18	13.40
1983/01/19	13.00
1983/01/20	12.70
1983/01/21	12.70
1983/01/22	12.70
1983/01/23	12.00
1983/01/24	11.70
1983/01/25	11.70
1983/01/26	10.80
1983/01/27	11.10
1983/01/28	10.80
1983/01/29	10.80
1983/01/30	10.80
1983/01/31	10.80
1983/02/01	10.20
1983/02/02	10.20
1983/02/03	10.20
1983/02/04	9.90
1983/02/05	9.90
1983/02/06	9.60
1983/02/07	9.60
1983/02/08	9.60
1983/02/09	9.30
1983/02/10	9.00
1983/02/11	9.00
1983/02/12	9.00
1983/02/13	9.00
1983/02/14	9.00
1983/02/15	8.70
1983/02/16	8.70
1983/02/17	8.70
1983/02/18	8.70
1983/02/19	8.70
1983/02/20	8.70
1983/02/21	8.40
1983/02/22	8.40
1983/02/23	8.10
1983/02/24	8.10
1983/02/25	8.10
1983/02/26	8.10
1983/02/27	8.10
1983/02/28	7.80
1983/03/01	7.80
1983/03/02	7.50
1983/03/03	7.50
1983/03/04	7.50
1983/03/05	7.50
1983/03/06	7.20
1983/03/07	7.20
1983/03/08	7.20
1983/03/09	6.90
1983/03/10	6.90
1983/03/11	6.90
1983/03/12	6.90
1983/03/13	6.90
1983/03/14	7.20
1983/03/15	7.20
1983/03/16	7.20
1983/03/17	6.90
1983/03/18	6.90
1983/03/19	6.60
1983/03/20	6.60
1983/03/21	6.60
1983/03/22	6.30
1983/03/23	6.00
1983/03/24	6.00
1983/03/25	6.00
1983/03/26	6.00
1983/03/27	6.00
1983/03/28	6.00
1983/03/29	6.00
1983/03/30	5.70
1983/03/31	5.70
1983/04/01	5.80
1983/04/02	5.80
1983/04/03	5.80
1983/04/04	5.60
1983/04/05	5.60
1983/04/06	5.60
1983/04/07	5.60
1983/04/08	5.60
1983/04/09	5.40
1983/04/10	5.40
1983/04/11	5.40
1983/04/12	5.40
1983/04/13	5.40
1983/04/14	5.40
1983/04/15	5.40
1983/04/16	5.40
1983/04/17	5.40
1983/04/18	5.40
1983/04/19	5.40
1983/04/20	5.40
1983/04/21	5.40
1983/04/22	5.40
1983/04/23	5.40
1983/04/24	5.40
1983/04/25	5.40
1983/04/26	5.40
1983/04/27	5.40
1983/04/28	5.40
1983/04/29	5.20
1983/04/30	5.00
1983/05/01	5.00
1983/05/02	5.00
1983/05/03	5.40
1983/05/04	6.30
1983/05/05	6.60
1983/05/06	6.60
1983/05/07	6.60
1983/05/08	7.50
1983/05/09	10.60
1983/05/10	8.70
1983/05/11	7.50
1983/05/12	7.20
1983/05/13	6.30
1983/05/14	5.80
1983/05/15	5.80
1983/05/16	5.60
1983/05/17	5.60
1983/05/18	6.30
1983/05/19	8.40
1983/05/20	7.20
1983/05/21	6.60
1983/05/22	7.20
1983/05/23	6.30
1983/05/24	6.00
1983/05/25	7.50
1983/05/26	18.60
1983/05/27	16.20
1983/05/28	10.60
1983/05/29	8.40
1983/05/30	7.80
1983/05/31	7.50
1983/06/01	8.70
1983/06/02	8.10
1983/06/03	8.70
1983/06/04	8.40
1983/06/05	8.10
1983/06/06	7.50
1983/06/07	7.50
1983/06/08	7.80
1983/06/09	7.50
1983/06/10	7.20
1983/06/11	7.20
1983/06/12	8.10
1983/06/13	11.80
1983/06/14	12.60
1983/06/15	13.80
1983/06/16	14.20
1983/06/17	16.60
1983/06/18	18.60
1983/06/19	20.60
1983/06/20	23.50
1983/06/21	24.00
1983/06/22	23.00
1983/06/23	22.00
1983/06/24	20.60
1983/06/25	20.20
1983/06/26	18.60
1983/06/27	17.40
1983/06/28	15.40
1983/06/29	14.60
1983/06/30	13.40
1983/07/01	12.60
1983/07/02	15.80
1983/07/03	17.80
1983/07/04	14.60
1983/07/05	13.00
1983/07/06	12.60
1983/07/07	12.60
1983/07/08	14.20
1983/07/09	16.20
1983/07/10	20.60
1983/07/11	30.00
1983/07/12	31.50
1983/07/13	24.50
1983/07/14	19.80
1983/07/15	16.60
1983/07/16	15.00
1983/07/17	13.00
1983/07/18	11.00
1983/07/19	9.80
1983/07/20	9.80
1983/07/21	9.40
1983/07/22	9.00
1983/07/23	8.70
1983/07/24	7.50
1983/07/25	7.80
1983/07/26	9.80
1983/07/27	9.80
1983/07/28	12.20
1983/07/29	27.00
1983/07/30	24.50
1983/07/31	17.00
1983/08/01	12.60
1983/08/02	11.40
1983/08/03	11.00
1983/08/04	11.00
1983/08/05	9.80
1983/08/06	11.80
1983/08/07	11.40
1983/08/08	25.50
1983/08/09	26.00
1983/08/10	27.50
1983/08/11	33.00
1983/08/12	47.40
1983/08/13	50.80
1983/08/14	57.80
1983/08/15	62.00
1983/08/16	70.60
1983/08/17	86.60
1983/08/18	99.40
1983/08/19	144.00
1983/08/20	195.00
1983/08/21	139.50
1983/08/22	133.20
1983/08/23	135.00
1983/08/24	123.30
1983/08/25	117.00
1983/08/26	139.50
1983/08/27	119.70
1983/08/28	97.80
1983/08/29	85.00
1983/08/30	77.00
1983/08/31	85.00
1983/09/01	118.80
1983/09/02	112.20
1983/09/03	111.40
1983/09/04	109.00
1983/09/05	104.20
1983/09/06	108.20
1983/09/07	107.40
1983/09/08	146.70
1983/09/09	140.40
1983/09/10	125.10
1983/09/11	124.20
1983/09/12	144.90
1983/09/13	162.90
1983/09/14	184.00
1983/09/15	210.00
1983/09/16	208.00
1983/09/17	191.00
1983/09/18	188.00
1983/09/19	188.00
1983/09/20	186.00
1983/09/21	187.00
1983/09/22	186.00
1983/09/23	193.00
1983/09/24	198.00
1983/09/25	204.00
1983/09/26	215.40
1983/09/27	228.60
1983/09/28	240.70
1983/09/29	279.20
1983/09/30	366.20
1983/10/01	469.60
1983/10/02	433.40
1983/10/03	534.60
1983/10/04	397.40
1983/10/05	378.20
1983/10/06	357.80
1983/10/07	350.60
1983/10/08	342.20
1983/10/09	339.80
1983/10/10	347.00
1983/10/11	474.80
1983/10/12	694.60
1983/10/13	781.40
1983/10/14	851.40
1983/10/15	789.80
1983/10/16	760.40
1983/10/17	753.40
1983/10/18	715.60
1983/10/19	697.40
1983/10/20	658.10
1983/10/21	613.90
1983/10/22	577.50
1983/10/23	545.00
1983/10/24	506.00
1983/10/25	468.30
1983/10/26	428.60
1983/10/27	399.80
1983/10/28	372.20
1983/10/29	351.80
1983/10/30	324.20
1983/10/31	291.30
1983/11/01	261.60
1983/11/02	231.90
1983/11/03	208.00
1983/11/04	188.00
1983/11/05	170.10
1983/11/06	156.60
1983/11/07	146.70
1983/11/08	137.70
1983/11/09	131.40
1983/11/10	126.00
1983/11/11	126.90
1983/11/12	124.20
1983/11/13	170.10
1983/11/14	162.00
1983/11/15	144.00
1983/11/16	117.00
1983/11/17	103.40
1983/11/18	93.00
1983/11/19	88.20
1983/11/20	86.60
1983/11/21	88.20
1983/11/22	90.60
1983/11/23	91.40
1983/11/24	92.20
1983/11/25	89.80
1983/11/26	87.40
1983/11/27	81.80
1983/11/28	76.20
1983/11/29	70.60
1983/11/30	65.50
1983/12/01	62.00
1983/12/02	57.10
1983/12/03	54.30
1983/12/04	52.20
1983/12/05	50.10
1983/12/06	47.40
1983/12/07	46.20
1983/12/08	45.00
1983/12/09	43.20
1983/12/10	43.20
1983/12/11	41.40
1983/12/12	40.80
1983/12/13	40.80
1983/12/14	40.20
1983/12/15	39.00
1983/12/16	37.80
1983/12/17	37.20
1983/12/18	36.60
1983/12/19	35.00
1983/12/20	34.50
1983/12/21	34.00
1983/12/22	33.00
1983/12/23	33.00
1983/12/24	32.50
1983/12/25	32.00
1983/12/26	31.00
1983/12/27	30.00
1983/12/28	30.00
1983/12/29	30.00
1983/12/30	30.00
1983/12/31	30.00
#===========================================
# Number of observations = 365 / 365
# Average = 84.31