1988/01/01	4.30
1988/01/02	4.02
1988/01/03	3.88
1988/01/04	3.74
1988/01/05	3.74
1988/01/06	3.60
1988/01/07	3.51
1988/01/08	3.42
1988/01/09	3.60
1988/01/10	3.60
1988/01/11	3.51
1988/01/12	3.51
1988/01/13	3.51
1988/01/14	3.33
1988/01/15	3.15
1988/01/16	3.15
1988/01/17	3.42
1988/01/18	3.33
1988/01/19	2.97
1988/01/20	2.97
1988/01/21	2.97
1988/01/22	3.06
1988/01/23	3.06
1988/01/24	3.06
1988/01/25	3.06
1988/01/26	2.97
1988/01/27	2.88
1988/01/28	2.79
1988/01/29	2.79
1988/01/30	2.70
1988/01/31	2.70
1988/02/01	2.61
1988/02/02	2.52
1988/02/03	2.52
1988/02/04	2.61
1988/02/05	2.43
1988/02/06	2.43
1988/02/07	2.43
1988/02/08	2.43
1988/02/09	2.34
1988/02/10	2.34
1988/02/11	2.34
1988/02/12	2.34
1988/02/13	2.34
1988/02/14	2.34
1988/02/15	2.34
1988/02/16	2.34
1988/02/17	2.34
1988/02/18	2.34
1988/02/19	2.70
1988/02/20	2.70
1988/02/21	2.70
1988/02/22	2.61
1988/02/23	2.52
1988/02/24	2.52
1988/02/25	2.52
1988/02/26	2.52
1988/02/27	2.43
1988/02/28	2.34
1988/02/29	2.34
1988/03/01	2.25
1988/03/02	2.16
1988/03/03	2.16
1988/03/04	1.98
1988/03/05	1.98
1988/03/06	1.98
1988/03/07	1.98
1988/03/08	1.89
1988/03/09	1.62
1988/03/10	1.53
1988/03/11	1.53
1988/03/12	1.53
1988/03/13	1.44
1988/03/14	1.44
1988/03/15	1.35
1988/03/16	1.35
1988/03/17	1.26
1988/03/18	1.26
1988/03/19	1.17
1988/03/20	1.26
1988/03/21	1.26
1988/03/22	1.17
1988/03/23	1.17
1988/03/24	1.17
1988/03/25	1.17
1988/03/26	1.17
1988/03/27	1.08
1988/03/28	1.08
1988/03/29	1.08
1988/03/30	1.08
1988/03/31	1.08
1988/04/01	1.12
1988/04/02	1.12
1988/04/03	1.04
1988/04/04	1.04
1988/04/05	1.04
1988/04/06	0.96
1988/04/07	0.96
1988/04/08	0.96
1988/04/09	0.96
1988/04/10	1.04
1988/04/11	1.04
1988/04/12	1.04
1988/04/13	1.04
1988/04/14	8.95
1988/04/15	9.45
1988/04/16	4.34
1988/04/17	3.61
1988/04/18	3.09
1988/04/19	3.09
1988/04/20	3.09
1988/04/21	2.96
1988/04/22	2.70
1988/04/23	2.26
1988/04/24	2.26
1988/04/25	2.26
1988/04/26	2.15
1988/04/27	1.82
1988/04/28	1.82
1988/04/29	2.48
1988/04/30	3.09
1988/05/01	2.70
1988/05/02	2.70
1988/05/03	3.09
1988/05/04	5.02
1988/05/05	4.68
1988/05/06	6.90
1988/05/07	9.45
1988/05/08	5.70
1988/05/09	4.00
1988/05/10	4.00
1988/05/11	3.48
1988/05/12	3.22
1988/05/13	3.09
1988/05/14	5.02
1988/05/15	5.36
1988/05/16	8.95
1988/05/17	50.00
1988/05/18	27.90
1988/05/19	13.00
1988/05/20	7.10
1988/05/21	5.36
1988/05/22	9.95
1988/05/23	4.68
1988/05/24	4.00
1988/05/25	3.48
1988/05/26	2.96
1988/05/27	2.59
1988/05/28	2.26
1988/05/29	2.15
1988/05/30	2.15
1988/05/31	2.04
1988/06/01	3.22
1988/06/02	16.74
1988/06/03	36.90
1988/06/04	46.16
1988/06/05	42.38
1988/06/06	50.48
1988/06/07	56.96
1988/06/08	36.00
1988/06/09	25.10
1988/06/10	20.54
1988/06/11	11.04
1988/06/12	9.45
1988/06/13	7.95
1988/06/14	6.50
1988/06/15	7.95
1988/06/16	8.45
1988/06/17	6.50
1988/06/18	5.70
1988/06/19	5.70
1988/06/20	10.20
1988/06/21	11.60
1988/06/22	8.20
1988/06/23	5.53
1988/06/24	4.68
1988/06/25	6.30
1988/06/26	5.53
1988/06/27	5.02
1988/06/28	5.70
1988/06/29	7.30
1988/06/30	8.45
1988/07/01	7.70
1988/07/02	7.50
1988/07/03	12.72
1988/07/04	14.02
1988/07/05	9.45
1988/07/06	18.10
1988/07/07	12.44
1988/07/08	14.70
1988/07/09	13.68
1988/07/10	8.45
1988/07/11	8.20
1988/07/12	15.38
1988/07/13	22.76
1988/07/14	21.65
1988/07/15	28.30
1988/07/16	32.40
1988/07/17	18.78
1988/07/18	22.39
1988/07/19	27.10
1988/07/20	20.17
1988/07/21	16.74
1988/07/22	16.40
1988/07/23	12.72
1988/07/24	10.48
1988/07/25	12.44
1988/07/26	11.60
1988/07/27	7.70
1988/07/28	7.10
1988/07/29	7.95
1988/07/30	7.30
1988/07/31	7.70
1988/08/01	9.45
1988/08/02	8.70
1988/08/03	8.70
1988/08/04	15.38
1988/08/05	8.70
1988/08/06	7.30
1988/08/07	7.70
1988/08/08	8.70
1988/08/09	7.30
1988/08/10	10.20
1988/08/11	9.70
1988/08/12	8.20
1988/08/13	7.50
1988/08/14	7.30
1988/08/15	10.48
1988/08/16	17.08
1988/08/17	22.76
1988/08/18	18.78
1988/08/19	11.32
1988/08/20	14.02
1988/08/21	20.91
1988/08/22	17.42
1988/08/23	11.60
1988/08/24	8.95
1988/08/25	7.50
1988/08/26	6.90
1988/08/27	7.30
1988/08/28	10.76
1988/08/29	18.78
1988/08/30	15.72
1988/08/31	22.76
1988/09/01	26.30
1988/09/02	28.30
1988/09/03	15.38
1988/09/04	10.48
1988/09/05	8.70
1988/09/06	10.76
1988/09/07	12.44
1988/09/08	14.70
1988/09/09	11.32
1988/09/10	10.20
1988/09/11	9.45
1988/09/12	8.45
1988/09/13	10.20
1988/09/14	10.20
1988/09/15	11.04
1988/09/16	11.60
1988/09/17	13.00
1988/09/18	11.60
1988/09/19	11.60
1988/09/20	9.95
1988/09/21	8.95
1988/09/22	8.20
1988/09/23	7.30
1988/09/24	6.70
1988/09/25	6.50
1988/09/26	6.50
1988/09/27	6.30
1988/09/28	6.10
1988/09/29	18.44
1988/09/30	10.48
1988/10/01	7.70
1988/10/02	6.70
1988/10/03	6.90
1988/10/04	7.50
1988/10/05	9.70
1988/10/06	27.10
1988/10/07	28.70
1988/10/08	26.70
1988/10/09	23.90
1988/10/10	16.06
1988/10/11	11.88
1988/10/12	9.20
1988/10/13	11.32
1988/10/14	33.30
1988/10/15	35.55
1988/10/16	25.10
1988/10/17	15.72
1988/10/18	18.10
1988/10/19	31.10
1988/10/20	27.90
1988/10/21	18.44
1988/10/22	15.38
1988/10/23	13.68
1988/10/24	11.88
1988/10/25	10.76
1988/10/26	9.95
1988/10/27	9.20
1988/10/28	8.45
1988/10/29	8.45
1988/10/30	8.20
1988/10/31	8.20
1988/11/01	8.45
1988/11/02	8.45
1988/11/03	8.45
1988/11/04	8.20
1988/11/05	7.50
1988/11/06	6.50
1988/11/07	6.70
1988/11/08	6.90
1988/11/09	6.50
1988/11/10	6.10
1988/11/11	6.10
1988/11/12	5.53
1988/11/13	5.36
1988/11/14	5.19
1988/11/15	5.36
1988/11/16	6.70
1988/11/17	7.50
1988/11/18	12.72
1988/11/19	12.44
1988/11/20	8.70
1988/11/21	7.30
1988/11/22	6.90
1988/11/23	6.50
1988/11/24	6.30
1988/11/25	6.30
1988/11/26	6.10
1988/11/27	6.10
1988/11/28	5.90
1988/11/29	5.70
1988/11/30	5.53
1988/12/01	5.36
1988/12/02	5.19
1988/12/03	5.19
1988/12/04	5.02
1988/12/05	4.85
1988/12/06	4.85
1988/12/07	4.68
1988/12/08	4.51
1988/12/09	4.17
1988/12/10	3.74
1988/12/11	3.48
1988/12/12	3.35
1988/12/13	3.35
1988/12/14	3.74
1988/12/15	3.35
1988/12/16	3.35
1988/12/17	3.35
1988/12/18	3.35
1988/12/19	3.35
1988/12/20	3.35
1988/12/21	3.22
1988/12/22	3.22
1988/12/23	3.22
1988/12/24	3.22
1988/12/25	3.22
1988/12/26	3.22
1988/12/27	3.09
1988/12/28	2.83
1988/12/29	3.09
1988/12/30	3.22
1988/12/31	2.96
#===========================================
# Number of observations = 366 / 366
# Average = 8.16