1988/01/01	4.00
1988/01/02	3.40
1988/01/03	3.25
1988/01/04	3.40
1988/01/05	3.40
1988/01/06	3.25
1988/01/07	3.25
1988/01/08	3.40
1988/01/09	3.25
1988/01/10	3.10
1988/01/11	3.10
1988/01/12	2.80
1988/01/13	3.10
1988/01/14	3.25
1988/01/15	3.10
1988/01/16	3.10
1988/01/17	2.95
1988/01/18	2.95
1988/01/19	2.80
1988/01/20	2.80
1988/01/21	2.65
1988/01/22	2.50
1988/01/23	2.50
1988/01/24	2.35
1988/01/25	2.20
1988/01/26	2.20
1988/01/27	2.20
1988/01/28	1.90
1988/01/29	1.75
1988/01/30	1.60
1988/01/31	1.60
1988/02/01	1.60
1988/02/02	1.60
1988/02/03	1.45
1988/02/04	1.30
1988/02/05	1.30
1988/02/06	1.30
1988/02/07	1.30
1988/02/08	1.15
1988/02/09	0.90
1988/02/10	0.90
1988/02/11	0.90
1988/02/12	0.80
1988/02/13	0.70
1988/02/14	0.70
1988/02/15	0.70
1988/02/16	0.70
1988/02/17	0.70
1988/02/18	1.15
1988/02/19	1.75
1988/02/20	1.75
1988/02/21	1.75
1988/02/22	1.75
1988/02/23	1.60
1988/02/24	2.05
1988/02/25	2.20
1988/02/26	2.20
1988/02/27	2.20
1988/02/28	2.05
1988/02/29	1.45
1988/03/01	1.00
1988/03/02	1.00
1988/03/03	0.90
1988/03/04	0.90
1988/03/05	0.90
1988/03/06	2.34
1988/03/07	2.08
1988/03/08	2.08
1988/03/09	1.82
1988/03/10	1.82
1988/03/11	2.08
1988/03/12	2.21
1988/03/13	2.08
1988/03/14	1.82
1988/03/15	1.82
1988/03/16	1.69
1988/03/17	1.69
1988/03/18	1.69
1988/03/19	1.69
1988/03/20	1.69
1988/03/21	1.69
1988/03/22	1.56
1988/03/23	1.56
1988/03/24	1.56
1988/03/25	1.56
1988/03/26	1.56
1988/03/27	1.30
1988/03/28	1.30
1988/03/29	1.17
1988/03/30	1.04
1988/03/31	1.04
1988/04/01	0.84
1988/04/02	0.84
1988/04/03	0.84
1988/04/04	0.96
1988/04/05	0.96
1988/04/06	0.96
1988/04/07	0.96
1988/04/08	0.96
1988/04/09	0.96
1988/04/10	0.96
1988/04/11	0.96
1988/04/12	0.96
1988/04/13	1.08
1988/04/14	1.20
1988/04/15	1.33
1988/04/16	1.33
1988/04/17	1.20
1988/04/18	1.20
1988/04/19	1.33
1988/04/20	1.59
1988/04/21	3.66
1988/04/22	3.95
1988/04/23	3.80
1988/04/24	3.52
1988/04/25	2.93
1988/04/26	3.08
1988/04/27	3.37
1988/04/28	3.52
1988/04/29	3.95
1988/04/30	4.75
1988/05/01	5.95
1988/05/02	15.80
1988/05/03	10.86
1988/05/04	8.68
1988/05/05	7.07
1988/05/06	7.07
1988/05/07	6.18
1988/05/08	7.98
1988/05/09	7.53
1988/05/10	9.40
1988/05/11	5.75
1988/05/12	4.75
1988/05/13	3.80
1988/05/14	29.30
1988/05/15	29.30
1988/05/16	14.50
1988/05/17	26.00
1988/05/18	22.00
1988/05/19	27.10
1988/05/20	26.00
1988/05/21	37.65
1988/05/22	17.69
1988/05/23	13.46
1988/05/24	11.12
1988/05/25	10.36
1988/05/26	11.64
1988/05/27	7.53
1988/05/28	5.95
1988/05/29	5.55
1988/05/30	5.55
1988/05/31	5.55
1988/06/01	5.75
1988/06/02	5.15
1988/06/03	8.44
1988/06/04	13.98
1988/06/05	45.60
1988/06/06	163.90
1988/06/07	293.90
1988/06/08	315.65
1988/06/09	322.70
1988/06/10	285.20
1988/06/11	247.50
1988/06/12	218.65
1988/06/13	191.70
1988/06/14	171.25
1988/06/15	134.10
1988/06/16	83.50
1988/06/17	60.90
1988/06/18	47.70
1988/06/19	38.30
1988/06/20	29.85
1988/06/21	27.10
1988/06/22	35.90
1988/06/23	40.25
1988/06/24	33.70
1988/06/25	29.85
1988/06/26	24.80
1988/06/27	23.60
1988/06/28	24.40
1988/06/29	24.40
1988/06/30	23.60
1988/07/01	26.55
1988/07/02	32.60
1988/07/03	37.00
1988/07/04	33.70
1988/07/05	34.25
1988/07/06	32.60
1988/07/07	25.60
1988/07/08	21.65
1988/07/09	20.25
1988/07/10	16.88
1988/07/11	16.34
1988/07/12	15.28
1988/07/13	16.61
1988/07/14	21.30
1988/07/15	49.10
1988/07/16	124.20
1988/07/17	236.30
1988/07/18	259.10
1988/07/19	247.50
1988/07/20	286.65
1988/07/21	260.55
1988/07/22	221.35
1988/07/23	199.75
1988/07/24	181.30
1988/07/25	176.25
1988/07/26	152.05
1988/07/27	114.65
1988/07/28	81.80
1988/07/29	60.10
1988/07/30	47.70
1988/07/31	39.60
1988/08/01	34.80
1988/08/02	34.80
1988/08/03	34.80
1988/08/04	38.95
1988/08/05	38.95
1988/08/06	40.25
1988/08/07	36.45
1988/08/08	31.50
1988/08/09	27.65
1988/08/10	24.80
1988/08/11	23.20
1988/08/12	22.40
1988/08/13	23.20
1988/08/14	22.40
1988/08/15	23.20
1988/08/16	27.65
1988/08/17	37.65
1988/08/18	37.65
1988/08/19	39.60
1988/08/20	75.85
1988/08/21	150.90
1988/08/22	237.70
1988/08/23	247.50
1988/08/24	187.80
1988/08/25	135.20
1988/08/26	98.80
1988/08/27	82.65
1988/08/28	72.45
1988/08/29	93.40
1988/08/30	98.80
1988/08/31	129.70
1988/09/01	142.90
1988/09/02	148.60
1988/09/03	156.70
1988/09/04	160.30
1988/09/05	165.10
1988/09/06	135.20
1988/09/07	116.75
1988/09/08	91.60
1988/09/09	86.20
1988/09/10	80.95
1988/09/11	68.20
1988/09/12	47.70
1988/09/13	38.30
1988/09/14	32.60
1988/09/15	27.65
1988/09/16	29.30
1988/09/17	52.10
1988/09/18	69.05
1988/09/19	57.70
1988/09/20	52.10
1988/09/21	53.70
1988/09/22	45.60
1988/09/23	38.30
1988/09/24	33.15
1988/09/25	32.05
1988/09/26	30.95
1988/09/27	28.20
1988/09/28	26.00
1988/09/29	24.40
1988/09/30	24.40
1988/10/01	28.20
1988/10/02	29.30
1988/10/03	34.25
1988/10/04	38.30
1988/10/05	37.00
1988/10/06	34.80
1988/10/07	37.65
1988/10/08	34.80
1988/10/09	31.50
1988/10/10	38.95
1988/10/11	75.85
1988/10/12	65.70
1988/10/13	82.65
1988/10/14	106.50
1988/10/15	157.90
1988/10/16	298.25
1988/10/17	344.00
1988/10/18	295.35
1988/10/19	251.85
1988/10/20	239.10
1988/10/21	211.90
1988/10/22	171.25
1988/10/23	144.00
1988/10/24	126.40
1988/10/25	107.50
1988/10/26	88.90
1988/10/27	78.40
1988/10/28	56.90
1988/10/29	44.20
1988/10/30	38.30
1988/10/31	33.70
1988/11/01	32.05
1988/11/02	29.85
1988/11/03	28.75
1988/11/04	28.20
1988/11/05	27.65
1988/11/06	27.65
1988/11/07	27.65
1988/11/08	27.65
1988/11/09	24.00
1988/11/10	20.60
1988/11/11	17.69
1988/11/12	18.50
1988/11/13	19.55
1988/11/14	19.90
1988/11/15	22.80
1988/11/16	18.85
1988/11/17	20.25
1988/11/18	24.80
1988/11/19	40.25
1988/11/20	52.90
1988/11/21	46.30
1988/11/22	38.30
1988/11/23	40.25
1988/11/24	37.00
1988/11/25	33.70
1988/11/26	20.60
1988/11/27	18.50
1988/11/28	20.25
1988/11/29	20.95
1988/11/30	20.60
1988/12/01	20.60
1988/12/02	19.90
1988/12/03	19.55
1988/12/04	19.20
1988/12/05	17.96
1988/12/06	15.80
1988/12/07	13.98
1988/12/08	15.02
1988/12/09	16.88
1988/12/10	15.80
1988/12/11	13.46
1988/12/12	11.64
1988/12/13	11.12
1988/12/14	12.42
1988/12/15	11.64
1988/12/16	9.64
1988/12/17	8.68
1988/12/18	8.44
1988/12/19	8.68
1988/12/20	8.44
1988/12/21	7.98
1988/12/22	7.75
1988/12/23	7.98
1988/12/24	8.44
1988/12/25	8.68
1988/12/26	8.20
1988/12/27	7.75
1988/12/28	7.30
1988/12/29	6.85
1988/12/30	6.62
1988/12/31	6.40
#===========================================
# Number of observations = 366 / 366
# Average = 42.51