1988/01/01	6.27
1988/01/02	6.10
1988/01/03	6.10
1988/01/04	6.10
1988/01/05	6.10
1988/01/06	6.10
1988/01/07	5.94
1988/01/08	5.78
1988/01/09	5.61
1988/01/10	5.45
1988/01/11	5.45
1988/01/12	5.45
1988/01/13	5.45
1988/01/14	5.45
1988/01/15	5.45
1988/01/16	5.45
1988/01/17	5.29
1988/01/18	5.29
1988/01/19	5.12
1988/01/20	4.96
1988/01/21	4.80
1988/01/22	4.63
1988/01/23	4.63
1988/01/24	4.63
1988/01/25	4.63
1988/01/26	4.47
1988/01/27	4.47
1988/01/28	4.31
1988/01/29	4.31
1988/01/30	3.98
1988/01/31	3.82
1988/02/01	3.65
1988/02/02	3.65
1988/02/03	3.65
1988/02/04	3.49
1988/02/05	3.49
1988/02/06	3.16
1988/02/07	3.16
1988/02/08	3.00
1988/02/09	3.00
1988/02/10	2.90
1988/02/11	2.90
1988/02/12	2.70
1988/02/13	2.60
1988/02/14	2.50
1988/02/15	2.40
1988/02/16	2.40
1988/02/17	2.40
1988/02/18	2.40
1988/02/19	2.40
1988/02/20	2.40
1988/02/21	2.50
1988/02/22	2.90
1988/02/23	2.90
1988/02/24	2.90
1988/02/25	2.90
1988/02/26	2.90
1988/02/27	2.90
1988/02/28	2.90
1988/02/29	2.90
1988/03/01	2.60
1988/03/02	2.40
1988/03/03	2.10
1988/03/04	2.00
1988/03/05	1.80
1988/03/06	1.80
1988/03/07	1.90
1988/03/08	1.90
1988/03/09	1.80
1988/03/10	1.70
1988/03/11	1.70
1988/03/12	1.70
1988/03/13	1.60
1988/03/14	1.40
1988/03/15	1.40
1988/03/16	1.20
1988/03/17	1.20
1988/03/18	1.20
1988/03/19	1.20
1988/03/20	1.30
1988/03/21	1.30
1988/03/22	1.30
1988/03/23	1.30
1988/03/24	1.30
1988/03/25	1.30
1988/03/26	1.30
1988/03/27	1.20
1988/03/28	1.00
1988/03/29	0.90
1988/03/30	0.90
1988/03/31	0.80
1988/04/01	1.24
1988/04/02	1.24
1988/04/03	1.24
1988/04/04	1.16
1988/04/05	1.16
1988/04/06	1.16
1988/04/07	1.16
1988/04/08	1.16
1988/04/09	1.16
1988/04/10	1.16
1988/04/11	1.16
1988/04/12	1.24
1988/04/13	1.32
1988/04/14	1.48
1988/04/15	1.56
1988/04/16	1.40
1988/04/17	1.32
1988/04/18	1.24
1988/04/19	1.48
1988/04/20	1.88
1988/04/21	2.20
1988/04/22	2.54
1988/04/23	2.66
1988/04/24	2.66
1988/04/25	2.66
1988/04/26	2.66
1988/04/27	2.54
1988/04/28	2.54
1988/04/29	2.89
1988/04/30	3.81
1988/05/01	3.69
1988/05/02	2.89
1988/05/03	2.54
1988/05/04	5.14
1988/05/05	7.22
1988/05/06	7.06
1988/05/07	24.89
1988/05/08	27.11
1988/05/09	13.86
1988/05/10	17.95
1988/05/11	31.18
1988/05/12	17.37
1988/05/13	9.46
1988/05/14	7.92
1988/05/15	12.32
1988/05/16	21.72
1988/05/17	27.85
1988/05/18	24.89
1988/05/19	23.04
1988/05/20	20.27
1988/05/21	22.67
1988/05/22	34.14
1988/05/23	33.77
1988/05/24	19.11
1988/05/25	14.30
1988/05/26	12.10
1988/05/27	10.78
1988/05/28	9.68
1988/05/29	7.70
1988/05/30	6.58
1988/05/31	5.94
1988/06/01	5.62
1988/06/02	5.30
1988/06/03	5.62
1988/06/04	8.14
1988/06/05	15.40
1988/06/06	39.68
1988/06/07	171.75
1988/06/08	271.72
1988/06/09	275.44
1988/06/10	278.23
1988/06/11	264.40
1988/06/12	233.80
1988/06/13	202.69
1988/06/14	174.00
1988/06/15	156.00
1988/06/16	129.00
1988/06/17	91.76
1988/06/18	65.00
1988/06/19	51.28
1988/06/20	41.83
1988/06/21	35.99
1988/06/22	29.70
1988/06/23	30.07
1988/06/24	34.14
1988/06/25	33.03
1988/06/26	29.33
1988/06/27	24.89
1988/06/28	22.30
1988/06/29	21.72
1988/06/30	21.72
1988/07/01	20.85
1988/07/02	21.43
1988/07/03	24.15
1988/07/04	28.22
1988/07/05	28.59
1988/07/06	27.11
1988/07/07	27.85
1988/07/08	24.52
1988/07/09	20.27
1988/07/10	18.82
1988/07/11	17.37
1988/07/12	16.50
1988/07/13	16.06
1988/07/14	16.50
1988/07/15	18.82
1988/07/16	25.63
1988/07/17	57.50
1988/07/18	162.75
1988/07/19	213.13
1988/07/20	208.78
1988/07/21	238.30
1988/07/22	224.80
1988/07/23	194.11
1988/07/24	174.75
1988/07/25	159.00
1988/07/26	152.25
1988/07/27	134.60
1988/07/28	106.56
1988/07/29	78.71
1988/07/30	59.00
1988/07/31	46.63
1988/08/01	39.25
1988/08/02	33.77
1988/08/03	31.55
1988/08/04	31.55
1988/08/05	31.92
1988/08/06	33.03
1988/08/07	33.03
1988/08/08	33.03
1988/08/09	29.70
1988/08/10	26.00
1988/08/11	23.78
1988/08/12	21.72
1988/08/13	21.14
1988/08/14	21.14
1988/08/15	20.85
1988/08/16	19.69
1988/08/17	21.43
1988/08/18	27.11
1988/08/19	31.18
1988/08/20	31.92
1988/08/21	39.25
1988/08/22	90.08
1988/08/23	183.32
1988/08/24	207.04
1988/08/25	167.25
1988/08/26	121.35
1988/08/27	91.76
1988/08/28	76.59
1988/08/29	64.50
1988/08/30	76.06
1988/08/31	82.42
1988/09/01	102.90
1988/09/02	117.45
1988/09/03	122.70
1988/09/04	131.80
1988/09/05	133.90
1988/09/06	140.90
1988/09/07	121.35
1988/09/08	103.51
1988/09/09	84.54
1988/09/10	75.00
1988/09/11	76.59
1988/09/12	74.50
1988/09/13	57.00
1988/09/14	45.27
1988/09/15	38.39
1988/09/16	33.77
1988/09/17	31.18
1988/09/18	39.68
1988/09/19	55.50
1988/09/20	58.50
1988/09/21	52.21
1988/09/22	52.21
1988/09/23	48.96
1988/09/24	42.69
1988/09/25	37.10
1988/09/26	34.14
1988/09/27	33.03
1988/09/28	29.70
1988/09/29	29.33
1988/09/30	41.40
1988/10/01	41.83
1988/10/02	41.40
1988/10/03	38.39
1988/10/04	40.54
1988/10/05	48.03
1988/10/06	45.27
1988/10/07	40.97
1988/10/08	39.68
1988/10/09	40.54
1988/10/10	43.98
1988/10/11	88.96
1988/10/12	102.90
1988/10/13	102.90
1988/10/14	151.50
1988/10/15	197.47
1988/10/16	252.70
1988/10/17	288.50
1988/10/18	293.25
1988/10/19	300.85
1988/10/20	305.60
1988/10/21	300.85
1988/10/22	283.81
1988/10/23	241.00
1988/10/24	193.28
1988/10/25	163.50
1988/10/26	141.60
1988/10/27	118.10
1988/10/28	102.29
1988/10/29	84.01
1988/10/30	70.00
1988/10/31	60.50
1988/11/01	53.61
1988/11/02	49.89
1988/11/03	46.63
1988/11/04	43.55
1988/11/05	41.83
1988/11/06	40.54
1988/11/07	39.68
1988/11/08	38.39
1988/11/09	37.96
1988/11/10	35.25
1988/11/11	31.92
1988/11/12	28.22
1988/11/13	25.63
1988/11/14	26.00
1988/11/15	26.00
1988/11/16	27.48
1988/11/17	28.22
1988/11/18	26.74
1988/11/19	31.18
1988/11/20	39.68
1988/11/21	53.14
1988/11/22	54.07
1988/11/23	46.63
1988/11/24	48.96
1988/11/25	42.69
1988/11/26	47.56
1988/11/27	33.03
1988/11/28	27.48
1988/11/29	26.74
1988/11/30	27.11
1988/12/01	27.11
1988/12/02	25.63
1988/12/03	24.15
1988/12/04	23.04
1988/12/05	22.30
1988/12/06	21.43
1988/12/07	19.69
1988/12/08	17.37
1988/12/09	16.79
1988/12/10	17.66
1988/12/11	17.95
1988/12/12	16.06
1988/12/13	14.74
1988/12/14	13.42
1988/12/15	12.98
1988/12/16	13.42
1988/12/17	12.32
1988/12/18	11.22
1988/12/19	10.78
1988/12/20	10.34
1988/12/21	10.34
1988/12/22	9.90
1988/12/23	9.68
1988/12/24	9.24
1988/12/25	9.02
1988/12/26	8.80
1988/12/27	8.58
1988/12/28	8.36
1988/12/29	7.92
1988/12/30	7.38
1988/12/31	7.06
#===========================================
# Number of observations = 366 / 366
# Average = 43.18