1987/01/01	3.45
1987/01/02	3.45
1987/01/03	3.15
1987/01/04	2.90
1987/01/05	2.80
1987/01/06	2.80
1987/01/07	2.80
1987/01/08	2.80
1987/01/09	2.80
1987/01/10	2.80
1987/01/11	2.80
1987/01/12	2.80
1987/01/13	2.80
1987/01/14	2.80
1987/01/15	2.70
1987/01/16	2.60
1987/01/17	2.60
1987/01/18	2.60
1987/01/19	2.60
1987/01/20	2.60
1987/01/21	2.60
1987/01/22	2.60
1987/01/23	2.50
1987/01/24	2.50
1987/01/25	2.50
1987/01/26	2.50
1987/01/27	2.50
1987/01/28	2.40
1987/01/29	2.40
1987/01/30	2.40
1987/01/31	2.40
1987/02/01	2.40
1987/02/02	2.40
1987/02/03	2.40
1987/02/04	2.40
1987/02/05	2.40
1987/02/06	2.40
1987/02/07	2.30
1987/02/08	2.30
1987/02/09	2.30
1987/02/10	2.30
1987/02/11	2.20
1987/02/12	2.20
1987/02/13	2.20
1987/02/14	2.20
1987/02/15	2.40
1987/02/16	2.60
1987/02/17	2.70
1987/02/18	2.70
1987/02/19	2.70
1987/02/20	2.90
1987/02/21	2.80
1987/02/22	2.60
1987/02/23	2.40
1987/02/24	2.30
1987/02/25	2.30
1987/02/26	2.20
1987/02/27	2.20
1987/02/28	2.20
1987/03/01	2.40
1987/03/02	2.40
1987/03/03	2.40
1987/03/04	2.40
1987/03/05	2.40
1987/03/06	2.30
1987/03/07	2.30
1987/03/08	2.30
1987/03/09	2.30
1987/03/10	2.40
1987/03/11	2.40
1987/03/12	2.50
1987/03/13	2.50
1987/03/14	2.40
1987/03/15	2.10
1987/03/16	2.00
1987/03/17	1.90
1987/03/18	1.80
1987/03/19	1.70
1987/03/20	1.60
1987/03/21	1.50
1987/03/22	1.50
1987/03/23	1.40
1987/03/24	1.30
1987/03/25	1.20
1987/03/26	1.10
1987/03/27	1.10
1987/03/28	1.10
1987/03/29	1.10
1987/03/30	1.10
1987/03/31	1.10
1987/04/01	1.00
1987/04/02	1.00
1987/04/03	1.00
1987/04/04	1.00
1987/04/05	1.00
1987/04/06	1.00
1987/04/07	1.00
1987/04/08	1.00
1987/04/09	1.00
1987/04/10	1.10
1987/04/11	1.10
1987/04/12	1.00
1987/04/13	0.80
1987/04/14	0.80
1987/04/15	0.90
1987/04/16	1.70
1987/04/17	1.60
1987/04/18	5.61
1987/04/19	3.82
1987/04/20	2.50
1987/04/21	1.20
1987/04/22	2.20
1987/04/23	2.20
1987/04/24	2.00
1987/04/25	2.20
1987/04/26	2.00
1987/04/27	1.70
1987/04/28	1.70
1987/04/29	1.70
1987/04/30	1.90
1987/05/01	2.90
1987/05/02	3.00
1987/05/03	2.70
1987/05/04	3.16
1987/05/05	6.59
1987/05/06	6.76
1987/05/07	5.61
1987/05/08	4.80
1987/05/09	4.14
1987/05/10	3.49
1987/05/11	3.16
1987/05/12	2.90
1987/05/13	2.60
1987/05/14	2.70
1987/05/15	2.60
1987/05/16	2.40
1987/05/17	2.70
1987/05/18	2.20
1987/05/19	1.80
1987/05/20	1.70
1987/05/21	1.50
1987/05/22	1.30
1987/05/23	1.00
1987/05/24	0.80
1987/05/25	0.70
1987/05/26	0.30
1987/05/27	0.30
1987/05/28	0.20
1987/05/29	0.30
1987/05/30	0.30
1987/05/31	0.10
1987/06/01	1.30
1987/06/02	2.40
1987/06/03	2.40
1987/06/04	2.40
1987/06/05	2.40
1987/06/06	3.82
1987/06/07	4.31
1987/06/08	8.95
1987/06/09	9.79
1987/06/10	8.11
1987/06/11	8.95
1987/06/12	7.90
1987/06/13	8.11
1987/06/14	8.11
1987/06/15	13.85
1987/06/16	25.12
1987/06/17	32.11
1987/06/18	28.62
1987/06/19	20.47
1987/06/20	14.93
1987/06/21	12.25
1987/06/22	9.37
1987/06/23	8.32
1987/06/24	7.25
1987/06/25	6.76
1987/06/26	6.27
1987/06/27	5.78
1987/06/28	5.29
1987/06/29	4.80
1987/06/30	4.47
1987/07/01	4.31
1987/07/02	4.31
1987/07/03	4.47
1987/07/04	4.47
1987/07/05	4.47
1987/07/06	4.31
1987/07/07	4.31
1987/07/08	3.82
1987/07/09	3.49
1987/07/10	3.98
1987/07/11	4.80
1987/07/12	5.29
1987/07/13	5.61
1987/07/14	5.61
1987/07/15	5.61
1987/07/16	5.45
1987/07/17	4.80
1987/07/18	4.31
1987/07/19	4.14
1987/07/20	3.98
1987/07/21	3.65
1987/07/22	3.49
1987/07/23	3.65
1987/07/24	3.65
1987/07/25	3.49
1987/07/26	4.31
1987/07/27	5.45
1987/07/28	5.29
1987/07/29	5.45
1987/07/30	6.43
1987/07/31	7.41
1987/08/01	7.08
1987/08/02	6.27
1987/08/03	5.12
1987/08/04	4.47
1987/08/05	3.65
1987/08/06	2.90
1987/08/07	2.70
1987/08/08	2.40
1987/08/09	2.10
1987/08/10	2.10
1987/08/11	2.40
1987/08/12	4.31
1987/08/13	5.12
1987/08/14	3.49
1987/08/15	2.40
1987/08/16	2.10
1987/08/17	1.90
1987/08/18	6.76
1987/08/19	14.66
1987/08/20	21.09
1987/08/21	24.19
1987/08/22	45.22
1987/08/23	126.00
1987/08/24	122.48
1987/08/25	97.43
1987/08/26	84.26
1987/08/27	130.20
1987/08/28	241.50
1987/08/29	241.50
1987/08/30	216.75
1987/08/31	172.30
1987/09/01	127.20
1987/09/02	106.05
1987/09/03	113.20
1987/09/04	106.05
1987/09/05	91.60
1987/09/06	75.46
1987/09/07	91.07
1987/09/08	100.61
1987/09/09	108.80
1987/09/10	119.58
1987/09/11	133.24
1987/09/12	132.63
1987/09/13	131.41
1987/09/14	114.36
1987/09/15	87.36
1987/09/16	126.00
1987/09/17	202.50
1987/09/18	239.25
1987/09/19	229.50
1987/09/20	187.40
1987/09/21	169.58
1987/09/22	162.20
1987/09/23	153.61
1987/09/24	208.50
1987/09/25	234.75
1987/09/26	201.00
1987/09/27	151.72
1987/09/28	117.84
1987/09/29	117.84
1987/09/30	175.02
1987/10/01	173.66
1987/10/02	149.20
1987/10/03	135.68
1987/10/04	119.58
1987/10/05	111.00
1987/10/06	123.64
1987/10/07	117.26
1987/10/08	101.67
1987/10/09	94.78
1987/10/10	86.30
1987/10/11	88.95
1987/10/12	95.31
1987/10/13	100.08
1987/10/14	98.49
1987/10/15	80.24
1987/10/16	67.47
1987/10/17	63.85
1987/10/18	55.20
1987/10/19	52.40
1987/10/20	54.40
1987/10/21	56.80
1987/10/22	54.00
1987/10/23	49.60
1987/10/24	50.80
1987/10/25	51.60
1987/10/26	53.60
1987/10/27	52.00
1987/10/28	46.40
1987/10/29	43.27
1987/10/30	38.03
1987/10/31	34.33
1987/11/01	31.00
1987/11/02	28.28
1987/11/03	26.98
1987/11/04	25.12
1987/11/05	23.88
1987/11/06	22.95
1987/11/07	23.26
1987/11/08	31.00
1987/11/09	40.99
1987/11/10	45.22
1987/11/11	83.75
1987/11/12	129.60
1987/11/13	138.73
1987/11/14	119.58
1987/11/15	92.66
1987/11/16	78.32
1987/11/17	70.76
1987/11/18	68.41
1987/11/19	67.94
1987/11/20	67.94
1987/11/21	64.30
1987/11/22	54.40
1987/11/23	50.00
1987/11/24	46.00
1987/11/25	46.80
1987/11/26	45.22
1987/11/27	38.77
1987/11/28	35.81
1987/11/29	34.70
1987/11/30	37.29
1987/12/01	34.70
1987/12/02	31.74
1987/12/03	31.00
1987/12/04	29.30
1987/12/05	26.36
1987/12/06	23.88
1987/12/07	21.40
1987/12/08	20.47
1987/12/09	19.85
1987/12/10	18.92
1987/12/11	18.30
1987/12/12	17.37
1987/12/13	16.75
1987/12/14	16.13
1987/12/15	16.13
1987/12/16	15.82
1987/12/17	14.12
1987/12/18	11.75
1987/12/19	10.25
1987/12/20	10.00
1987/12/21	10.00
1987/12/22	9.37
1987/12/23	8.53
1987/12/24	7.74
1987/12/25	7.25
1987/12/26	6.92
1987/12/27	6.76
1987/12/28	6.59
1987/12/29	6.43
1987/12/30	6.43
1987/12/31	6.27
#===========================================
# Number of observations = 365 / 365
# Average = 31.06