1988/01/01	5.06
1988/01/02	4.97
1988/01/03	4.97
1988/01/04	4.88
1988/01/05	4.88
1988/01/06	4.88
1988/01/07	4.79
1988/01/08	4.79
1988/01/09	4.70
1988/01/10	4.70
1988/01/11	4.70
1988/01/12	4.61
1988/01/13	4.61
1988/01/14	4.61
1988/01/15	4.61
1988/01/16	4.61
1988/01/17	4.52
1988/01/18	4.52
1988/01/19	4.43
1988/01/20	4.43
1988/01/21	4.34
1988/01/22	4.34
1988/01/23	4.25
1988/01/24	4.25
1988/01/25	4.16
1988/01/26	4.16
1988/01/27	4.07
1988/01/28	4.07
1988/01/29	3.98
1988/01/30	3.98
1988/01/31	3.89
1988/02/01	3.89
1988/02/02	3.80
1988/02/03	3.64
1988/02/04	3.56
1988/02/05	3.56
1988/02/06	3.48
1988/02/07	3.40
1988/02/08	3.32
1988/02/09	3.24
1988/02/10	3.16
1988/02/11	3.00
1988/02/12	2.94
1988/02/13	2.94
1988/02/14	2.87
1988/02/15	2.74
1988/02/16	2.68
1988/02/17	2.68
1988/02/18	2.61
1988/02/19	3.64
1988/02/20	3.72
1988/02/21	2.68
1988/02/22	2.61
1988/02/23	2.48
1988/02/24	2.42
1988/02/25	2.42
1988/02/26	2.35
1988/02/27	2.35
1988/02/28	2.28
1988/02/29	2.22
1988/03/01	2.22
1988/03/02	2.16
1988/03/03	2.16
1988/03/04	2.09
1988/03/05	2.16
1988/03/06	2.16
1988/03/07	2.16
1988/03/08	2.16
1988/03/09	2.16
1988/03/10	2.09
1988/03/11	2.09
1988/03/12	2.09
1988/03/13	2.09
1988/03/14	2.03
1988/03/15	2.03
1988/03/16	2.03
1988/03/17	1.96
1988/03/18	1.96
1988/03/19	1.89
1988/03/20	1.89
1988/03/21	1.89
1988/03/22	1.89
1988/03/23	1.89
1988/03/24	1.89
1988/03/25	1.89
1988/03/26	1.89
1988/03/27	1.89
1988/03/28	1.89
1988/03/29	1.83
1988/03/30	1.83
1988/03/31	1.83
1988/04/01	1.25
1988/04/02	1.25
1988/04/03	1.25
1988/04/04	1.25
1988/04/05	1.25
1988/04/06	1.20
1988/04/07	1.20
1988/04/08	1.20
1988/04/09	1.20
1988/04/10	1.20
1988/04/11	1.20
1988/04/12	1.20
1988/04/13	1.25
1988/04/14	3.93
1988/04/15	2.64
1988/04/16	2.46
1988/04/17	2.40
1988/04/18	2.28
1988/04/19	1.94
1988/04/20	2.52
1988/04/21	2.00
1988/04/22	1.83
1988/04/23	1.78
1988/04/24	3.44
1988/04/25	2.94
1988/04/26	2.17
1988/04/27	1.94
1988/04/28	1.94
1988/04/29	8.22
1988/04/30	5.58
1988/05/01	3.13
1988/05/02	3.38
1988/05/03	3.25
1988/05/04	3.13
1988/05/05	2.94
1988/05/06	2.76
1988/05/07	3.25
1988/05/08	3.07
1988/05/09	3.19
1988/05/10	3.81
1988/05/11	3.31
1988/05/12	3.13
1988/05/13	3.13
1988/05/14	2.82
1988/05/15	6.62
1988/05/16	21.36
1988/05/17	17.60
1988/05/18	10.54
1988/05/19	8.00
1988/05/20	8.00
1988/05/21	6.30
1988/05/22	5.43
1988/05/23	4.87
1988/05/24	4.53
1988/05/25	4.32
1988/05/26	4.06
1988/05/27	4.00
1988/05/28	4.46
1988/05/29	7.46
1988/05/30	5.82
1988/05/31	5.01
1988/06/01	5.08
1988/06/02	5.82
1988/06/03	6.22
1988/06/04	5.98
1988/06/05	7.02
1988/06/06	19.10
1988/06/07	9.74
1988/06/08	7.64
1988/06/09	7.28
1988/06/10	6.86
1988/06/11	6.46
1988/06/12	8.77
1988/06/13	7.46
1988/06/14	6.70
1988/06/15	6.54
1988/06/16	6.38
1988/06/17	6.14
1988/06/18	6.54
1988/06/19	8.88
1988/06/20	10.54
1988/06/21	8.55
1988/06/22	7.73
1988/06/23	6.86
1988/06/24	6.30
1988/06/25	6.06
1988/06/26	5.98
1988/06/27	6.14
1988/06/28	9.90
1988/06/29	13.26
1988/06/30	10.70
1988/07/01	12.41
1988/07/02	9.90
1988/07/03	9.74
1988/07/04	13.92
1988/07/05	92.66
1988/07/06	62.30
1988/07/07	85.55
1988/07/08	89.90
1988/07/09	63.04
1988/07/10	51.40
1988/07/11	45.94
1988/07/12	45.94
1988/07/13	38.17
1988/07/14	37.44
1988/07/15	29.56
1988/07/16	27.10
1988/07/17	27.80
1988/07/18	46.33
1988/07/19	41.08
1988/07/20	32.44
1988/07/21	31.36
1988/07/22	42.52
1988/07/23	42.52
1988/07/24	28.50
1988/07/25	27.10
1988/07/26	24.71
1988/07/27	25.37
1988/07/28	21.44
1988/07/29	20.16
1988/07/30	19.20
1988/07/31	19.20
1988/08/01	24.05
1988/08/02	19.84
1988/08/03	31.00
1988/08/04	82.24
1988/08/05	80.12
1988/08/06	58.78
1988/08/07	66.98
1988/08/08	73.59
1988/08/09	62.61
1988/08/10	60.03
1988/08/11	56.73
1988/08/12	47.89
1988/08/13	44.38
1988/08/14	49.06
1988/08/15	56.32
1988/08/16	65.66
1988/08/17	57.55
1988/08/18	47.89
1988/08/19	42.52
1988/08/20	48.28
1988/08/21	41.80
1988/08/22	38.54
1988/08/23	38.54
1988/08/24	34.22
1988/08/25	33.51
1988/08/26	32.80
1988/08/27	34.22
1988/08/28	45.94
1988/08/29	45.94
1988/08/30	37.07
1988/08/31	44.77
1988/09/01	42.88
1988/09/02	39.27
1988/09/03	32.44
1988/09/04	29.56
1988/09/05	31.00
1988/09/06	66.54
1988/09/07	53.86
1988/09/08	41.08
1988/09/09	37.44
1988/09/10	33.15
1988/09/11	33.15
1988/09/12	29.56
1988/09/13	27.80
1988/09/14	25.37
1988/09/15	24.38
1988/09/16	27.10
1988/09/17	30.64
1988/09/18	22.73
1988/09/19	20.16
1988/09/20	18.90
1988/09/21	19.52
1988/09/22	17.40
1988/09/23	14.10
1988/09/24	15.30
1988/09/25	14.40
1988/09/26	13.80
1988/09/27	13.50
1988/09/28	13.20
1988/09/29	12.91
1988/09/30	12.62
1988/10/01	12.33
1988/10/02	11.46
1988/10/03	11.17
1988/10/04	11.17
1988/10/05	14.70
1988/10/06	12.91
1988/10/07	11.75
1988/10/08	14.10
1988/10/09	12.62
1988/10/10	12.04
1988/10/11	10.88
1988/10/12	10.05
1988/10/13	10.05
1988/10/14	9.80
1988/10/15	12.04
1988/10/16	11.46
1988/10/17	11.75
1988/10/18	9.30
1988/10/19	12.33
1988/10/20	10.88
1988/10/21	9.80
1988/10/22	8.80
1988/10/23	8.55
1988/10/24	8.30
1988/10/25	8.30
1988/10/26	8.05
1988/10/27	7.80
1988/10/28	7.58
1988/10/29	7.58
1988/10/30	7.58
1988/10/31	7.35
1988/11/01	7.35
1988/11/02	7.13
1988/11/03	7.13
1988/11/04	7.13
1988/11/05	6.90
1988/11/06	6.90
1988/11/07	6.90
1988/11/08	6.90
1988/11/09	6.90
1988/11/10	6.90
1988/11/11	6.68
1988/11/12	6.68
1988/11/13	6.45
1988/11/14	6.45
1988/11/15	6.45
1988/11/16	6.68
1988/11/17	7.58
1988/11/18	9.55
1988/11/19	8.05
1988/11/20	6.45
1988/11/21	6.22
1988/11/22	6.00
1988/11/23	6.00
1988/11/24	5.78
1988/11/25	5.78
1988/11/26	5.55
1988/11/27	5.55
1988/11/28	5.55
1988/11/29	5.55
1988/11/30	5.36
1988/12/01	5.36
1988/12/02	5.36
1988/12/03	5.17
1988/12/04	5.17
1988/12/05	5.17
1988/12/06	5.17
1988/12/07	5.36
1988/12/08	5.36
1988/12/09	5.17
1988/12/10	4.98
1988/12/11	4.98
1988/12/12	4.98
1988/12/13	4.79
1988/12/14	4.79
1988/12/15	4.60
1988/12/16	4.60
1988/12/17	4.41
1988/12/18	4.41
1988/12/19	4.41
1988/12/20	4.22
1988/12/21	4.22
1988/12/22	4.03
1988/12/23	4.03
1988/12/24	4.03
1988/12/25	3.84
1988/12/26	3.84
1988/12/27	3.65
1988/12/28	3.65
1988/12/29	3.50
1988/12/30	3.50
1988/12/31	3.50
#===========================================
# Number of observations = 366 / 366
# Average = 13.41