1988/01/01	1.59
1988/01/02	1.46
1988/01/03	1.20
1988/01/04	1.06
1988/01/05	0.99
1988/01/06	0.78
1988/01/07	0.71
1988/01/08	0.57
1988/01/09	0.57
1988/01/10	0.47
1988/01/11	0.47
1988/01/12	0.47
1988/01/13	0.43
1988/01/14	0.47
1988/01/15	0.50
1988/01/16	0.47
1988/01/17	0.47
1988/01/18	0.43
1988/01/19	0.40
1988/01/20	0.36
1988/01/21	0.36
1988/01/22	0.40
1988/01/23	0.43
1988/01/24	0.47
1988/01/25	0.47
1988/01/26	0.50
1988/01/27	0.50
1988/01/28	0.47
1988/01/29	0.47
1988/01/30	0.47
1988/01/31	0.47
1988/02/01	0.47
1988/02/02	0.33
1988/02/03	0.19
1988/02/04	0.13
1988/02/05	0.09
1988/02/06	0.07
1988/02/07	0.06
1988/02/08	0.04
1988/02/09	0.07
1988/02/10	0.11
1988/02/11	0.10
1988/02/12	0.09
1988/02/13	0.05
1988/02/14	0.10
1988/02/15	0.13
1988/02/16	0.13
1988/02/17	0.15
1988/02/18	1.06
1988/02/19	1.72
1988/02/20	1.85
1988/02/21	1.46
1988/02/22	0.99
1988/02/23	0.64
1988/02/24	0.57
1988/02/25	0.57
1988/02/26	0.57
1988/02/27	0.57
1988/02/28	0.36
1988/02/29	0.29
1988/03/01	0.26
1988/03/02	0.15
1988/03/03	0.08
1988/03/04	0.05
1988/03/05	0.04
1988/03/06	0.08
1988/03/07	0.07
1988/03/08	0.06
1988/03/09	0.05
1988/03/10	0.06
1988/03/11	0.06
1988/03/12	0.07
1988/03/13	0.08
1988/03/14	0.07
1988/03/15	0.06
1988/03/16	0.05
1988/03/17	0.05
1988/03/18	0.05
1988/03/19	0.04
1988/03/20	0.04
1988/03/21	0.04
1988/03/22	0.04
1988/03/23	0.03
1988/03/24	0.03
1988/03/25	0.03
1988/03/26	0.02
1988/03/27	0.02
1988/03/28	0.04
1988/03/29	0.06
1988/03/30	0.05
1988/03/31	0.05
1988/04/01	0.40
1988/04/02	0.40
1988/04/03	0.40
1988/04/04	0.40
1988/04/05	0.40
1988/04/06	0.45
1988/04/07	0.45
1988/04/08	0.45
1988/04/09	0.50
1988/04/10	0.50
1988/04/11	0.55
1988/04/12	0.65
1988/04/13	0.70
1988/04/14	0.85
1988/04/15	0.90
1988/04/16	0.85
1988/04/17	0.90
1988/04/18	1.00
1988/04/19	1.05
1988/04/20	1.10
1988/04/21	1.15
1988/04/22	1.05
1988/04/23	1.00
1988/04/24	0.90
1988/04/25	1.00
1988/04/26	1.15
1988/04/27	1.30
1988/04/28	1.70
1988/04/29	1.50
1988/04/30	1.35
1988/05/01	10.30
1988/05/02	8.75
1988/05/03	8.45
1988/05/04	8.30
1988/05/05	8.60
1988/05/06	8.45
1988/05/07	8.45
1988/05/08	8.00
1988/05/09	7.40
1988/05/10	6.95
1988/05/11	6.65
1988/05/12	6.80
1988/05/13	6.95
1988/05/14	7.25
1988/05/15	7.40
1988/05/16	7.40
1988/05/17	7.25
1988/05/18	6.05
1988/05/19	5.45
1988/05/20	5.30
1988/05/21	5.45
1988/05/22	5.90
1988/05/23	5.90
1988/05/24	6.80
1988/05/25	6.35
1988/05/26	5.60
1988/05/27	6.20
1988/05/28	6.20
1988/05/29	6.80
1988/05/30	7.55
1988/05/31	7.70
1988/06/01	2.80
1988/06/02	2.70
1988/06/03	2.80
1988/06/04	3.20
1988/06/05	4.10
1988/06/06	2.90
1988/06/07	48.55
1988/06/08	40.50
1988/06/09	19.90
1988/06/10	12.10
1988/06/11	9.90
1988/06/12	9.20
1988/06/13	8.75
1988/06/14	8.75
1988/06/15	8.75
1988/06/16	8.75
1988/06/17	8.75
1988/06/18	8.75
1988/06/19	8.75
1988/06/20	8.75
1988/06/21	8.90
1988/06/22	17.80
1988/06/23	11.50
1988/06/24	8.00
1988/06/25	5.15
1988/06/26	5.00
1988/06/27	4.85
1988/06/28	4.10
1988/06/29	3.95
1988/06/30	3.95
1988/07/01	4.25
1988/07/02	5.75
1988/07/03	7.70
1988/07/04	12.10
1988/07/05	15.75
1988/07/06	27.25
1988/07/07	32.20
1988/07/08	19.60
1988/07/09	12.70
1988/07/10	11.10
1988/07/11	10.90
1988/07/12	10.90
1988/07/13	27.60
1988/07/14	36.15
1988/07/15	40.00
1988/07/16	47.45
1988/07/17	38.50
1988/07/18	71.85
1988/07/19	84.50
1988/07/20	33.45
1988/07/21	25.15
1988/07/22	16.60
1988/07/23	14.75
1988/07/24	13.50
1988/07/25	14.00
1988/07/26	11.10
1988/07/27	9.50
1988/07/28	8.60
1988/07/29	8.15
1988/07/30	7.40
1988/07/31	6.95
1988/08/01	6.50
1988/08/02	6.05
1988/08/03	5.60
1988/08/04	5.30
1988/08/05	5.60
1988/08/06	5.60
1988/08/07	5.45
1988/08/08	5.90
1988/08/09	7.85
1988/08/10	14.75
1988/08/11	15.50
1988/08/12	16.00
1988/08/13	15.50
1988/08/14	10.70
1988/08/15	8.90
1988/08/16	10.50
1988/08/17	13.10
1988/08/18	13.50
1988/08/19	16.90
1988/08/20	29.80
1988/08/21	29.40
1988/08/22	19.60
1988/08/23	17.20
1988/08/24	13.75
1988/08/25	10.90
1988/08/26	38.00
1988/08/27	51.85
1988/08/28	41.00
1988/08/29	45.25
1988/08/30	51.85
1988/08/31	82.25
1988/09/01	65.35
1988/09/02	36.60
1988/09/03	23.40
1988/09/04	17.20
1988/09/05	13.10
1988/09/06	14.25
1988/09/07	12.30
1988/09/08	21.40
1988/09/09	17.80
1988/09/10	13.75
1988/09/11	11.30
1988/09/12	9.50
1988/09/13	10.70
1988/09/14	13.50
1988/09/15	12.90
1988/09/16	23.75
1988/09/17	64.70
1988/09/18	128.00
1988/09/19	232.10
1988/09/20	432.10
1988/09/21	253.00
1988/09/22	138.20
1988/09/23	89.00
1988/09/24	61.45
1988/09/25	45.80
1988/09/26	38.50
1988/09/27	35.70
1988/09/28	31.40
1988/09/29	30.60
1988/09/30	41.00
1988/10/01	58.30
1988/10/02	40.50
1988/10/03	37.05
1988/10/04	35.70
1988/10/05	30.20
1988/10/06	29.80
1988/10/07	27.25
1988/10/08	27.95
1988/10/09	31.40
1988/10/10	49.65
1988/10/11	51.85
1988/10/12	46.90
1988/10/13	70.55
1988/10/14	143.30
1988/10/15	98.75
1988/10/16	83.00
1988/10/17	78.50
1988/10/18	280.50
1988/10/19	344.80
1988/10/20	259.60
1988/10/21	156.05
1988/10/22	104.20
1988/10/23	80.00
1988/10/24	67.95
1988/10/25	60.15
1988/10/26	57.70
1988/10/27	52.95
1988/10/28	48.55
1988/10/29	35.60
1988/10/30	31.70
1988/10/31	29.30
1988/11/01	27.50
1988/11/02	25.50
1988/11/03	23.50
1988/11/04	24.00
1988/11/05	21.60
1988/11/06	19.80
1988/11/07	18.90
1988/11/08	18.00
1988/11/09	16.80
1988/11/10	16.00
1988/11/11	14.80
1988/11/12	13.10
1988/11/13	12.50
1988/11/14	12.50
1988/11/15	12.50
1988/11/16	12.50
1988/11/17	13.10
1988/11/18	15.20
1988/11/19	15.20
1988/11/20	13.10
1988/11/21	12.20
1988/11/22	11.90
1988/11/23	11.60
1988/11/24	11.30
1988/11/25	10.70
1988/11/26	10.70
1988/11/27	11.00
1988/11/28	10.70
1988/11/29	11.00
1988/11/30	9.80
1988/12/01	10.10
1988/12/02	9.80
1988/12/03	9.20
1988/12/04	9.20
1988/12/05	8.90
1988/12/06	8.60
1988/12/07	8.30
1988/12/08	7.75
1988/12/09	7.75
1988/12/10	7.75
1988/12/11	7.00
1988/12/12	6.75
1988/12/13	6.50
1988/12/14	6.00
1988/12/15	5.75
1988/12/16	5.50
1988/12/17	5.50
1988/12/18	5.30
1988/12/19	5.30
1988/12/20	4.90
1988/12/21	4.50
1988/12/22	4.30
1988/12/23	4.10
1988/12/24	4.10
1988/12/25	3.90
1988/12/26	3.90
1988/12/27	4.10
1988/12/28	3.50
1988/12/29	3.35
1988/12/30	3.35
1988/12/31	3.35
#===========================================
# Number of observations = 366 / 366
# Average = 19.18