1988/01/01	10.62
1988/01/02	10.18
1988/01/03	9.97
1988/01/04	9.75
1988/01/05	9.75
1988/01/06	9.75
1988/01/07	9.53
1988/01/08	9.53
1988/01/09	9.32
1988/01/10	9.32
1988/01/11	9.32
1988/01/12	9.32
1988/01/13	9.32
1988/01/14	9.10
1988/01/15	9.10
1988/01/16	8.88
1988/01/17	8.67
1988/01/18	8.23
1988/01/19	8.23
1988/01/20	8.02
1988/01/21	8.02
1988/01/22	8.02
1988/01/23	7.58
1988/01/24	7.58
1988/01/25	7.37
1988/01/26	7.37
1988/01/27	7.15
1988/01/28	7.15
1988/01/29	6.93
1988/01/30	6.93
1988/01/31	6.72
1988/02/01	6.72
1988/02/02	6.72
1988/02/03	6.50
1988/02/04	6.50
1988/02/05	6.93
1988/02/06	6.50
1988/02/07	6.28
1988/02/08	6.07
1988/02/09	6.07
1988/02/10	6.07
1988/02/11	5.85
1988/02/12	5.63
1988/02/13	5.63
1988/02/14	5.42
1988/02/15	5.42
1988/02/16	5.20
1988/02/17	5.20
1988/02/18	5.42
1988/02/19	6.07
1988/02/20	5.42
1988/02/21	5.20
1988/02/22	5.20
1988/02/23	5.63
1988/02/24	5.63
1988/02/25	5.42
1988/02/26	5.42
1988/02/27	5.20
1988/02/28	4.98
1988/02/29	4.77
1988/03/01	4.55
1988/03/02	4.33
1988/03/03	4.33
1988/03/04	4.33
1988/03/05	4.33
1988/03/06	4.12
1988/03/07	3.90
1988/03/08	3.90
1988/03/09	3.90
1988/03/10	4.12
1988/03/11	3.90
1988/03/12	3.90
1988/03/13	3.68
1988/03/14	3.47
1988/03/15	3.47
1988/03/16	3.47
1988/03/17	3.47
1988/03/18	3.25
1988/03/19	3.03
1988/03/20	2.82
1988/03/21	2.82
1988/03/22	2.60
1988/03/23	2.38
1988/03/24	2.17
1988/03/25	2.17
1988/03/26	2.17
1988/03/27	2.17
1988/03/28	2.17
1988/03/29	2.17
1988/03/30	2.17
1988/03/31	1.95
1988/04/01	0.90
1988/04/02	0.90
1988/04/03	0.80
1988/04/04	0.80
1988/04/05	0.80
1988/04/06	0.80
1988/04/07	0.80
1988/04/08	0.70
1988/04/09	0.70
1988/04/10	0.70
1988/04/11	0.60
1988/04/12	0.70
1988/04/13	1.90
1988/04/14	1.80
1988/04/15	1.70
1988/04/16	1.60
1988/04/17	1.90
1988/04/18	1.90
1988/04/19	1.90
1988/04/20	1.80
1988/04/21	2.60
1988/04/22	2.90
1988/04/23	2.75
1988/04/24	2.75
1988/04/25	1.90
1988/04/26	1.70
1988/04/27	1.50
1988/04/28	1.20
1988/04/29	1.20
1988/04/30	8.40
1988/05/01	8.70
1988/05/02	10.60
1988/05/03	13.00
1988/05/04	34.50
1988/05/05	43.40
1988/05/06	39.60
1988/05/07	31.00
1988/05/08	37.20
1988/05/09	31.50
1988/05/10	29.50
1988/05/11	24.50
1988/05/12	19.80
1988/05/13	17.00
1988/05/14	16.20
1988/05/15	24.00
1988/05/16	34.50
1988/05/17	93.50
1988/05/18	141.00
1988/05/19	167.90
1988/05/20	334.60
1988/05/21	225.00
1988/05/22	155.80
1988/05/23	98.90
1988/05/24	68.60
1988/05/25	48.30
1988/05/26	37.80
1988/05/27	54.60
1988/05/28	37.20
1988/05/29	23.50
1988/05/30	19.40
1988/05/31	18.60
1988/06/01	16.20
1988/06/02	14.60
1988/06/03	14.20
1988/06/04	39.00
1988/06/05	184.40
1988/06/06	253.80
1988/06/07	651.50
1988/06/08	568.00
1988/06/09	410.80
1988/06/10	286.50
1988/06/11	192.10
1988/06/12	127.00
1988/06/13	93.50
1988/06/14	69.40
1988/06/15	59.50
1988/06/16	55.30
1988/06/17	49.00
1988/06/18	49.70
1988/06/19	39.00
1988/06/20	54.60
1988/06/21	59.50
1988/06/22	51.80
1988/06/23	39.60
1988/06/24	42.00
1988/06/25	36.00
1988/06/26	31.00
1988/06/27	29.50
1988/06/28	29.50
1988/06/29	30.00
1988/06/30	29.00
1988/07/01	29.50
1988/07/02	34.50
1988/07/03	46.20
1988/07/04	64.60
1988/07/05	58.80
1988/07/06	56.00
1988/07/07	37.20
1988/07/08	36.60
1988/07/09	36.60
1988/07/10	37.80
1988/07/11	33.00
1988/07/12	36.00
1988/07/13	60.20
1988/07/14	94.40
1988/07/15	354.60
1988/07/16	746.00
1988/07/17	699.80
1988/07/18	564.00
1988/07/19	485.80
1988/07/20	546.00
1988/07/21	520.00
1988/07/22	331.40
1988/07/23	251.00
1988/07/24	199.80
1988/07/25	200.90
1988/07/26	180.00
1988/07/27	140.00
1988/07/28	108.00
1988/07/29	82.70
1988/07/30	71.90
1988/07/31	63.00
1988/08/01	60.90
1988/08/02	57.40
1988/08/03	58.80
1988/08/04	85.40
1988/08/05	105.20
1988/08/06	116.00
1988/08/07	344.40
1988/08/08	344.40
1988/08/09	207.50
1988/08/10	148.10
1988/08/11	131.00
1988/08/12	187.70
1988/08/13	301.50
1988/08/14	430.60
1988/08/15	538.00
1988/08/16	536.00
1988/08/17	578.00
1988/08/18	606.00
1988/08/19	393.70
1988/08/20	303.00
1988/08/21	258.00
1988/08/22	248.40
1988/08/23	273.40
1988/08/24	221.40
1988/08/25	177.80
1988/08/26	149.20
1988/08/27	129.00
1988/08/28	119.00
1988/08/29	124.00
1988/08/30	164.60
1988/08/31	252.40
1988/09/01	263.60
1988/09/02	202.00
1988/09/03	159.10
1988/09/04	122.00
1988/09/05	103.40
1988/09/06	106.10
1988/09/07	100.70
1988/09/08	98.00
1988/09/09	110.00
1988/09/10	163.50
1988/09/11	116.00
1988/09/12	98.00
1988/09/13	114.00
1988/09/14	107.00
1988/09/15	101.60
1988/09/16	117.00
1988/09/17	196.50
1988/09/18	173.40
1988/09/19	176.70
1988/09/20	143.00
1988/09/21	136.00
1988/09/22	112.00
1988/09/23	91.70
1988/09/24	78.20
1988/09/25	66.20
1988/09/26	60.20
1988/09/27	58.10
1988/09/28	54.60
1988/09/29	51.10
1988/09/30	50.40
1988/10/01	55.30
1988/10/02	51.80
1988/10/03	64.60
1988/10/04	80.00
1988/10/05	69.40
1988/10/06	65.40
1988/10/07	129.00
1988/10/08	112.00
1988/10/09	108.00
1988/10/10	180.00
1988/10/11	160.20
1988/10/12	142.00
1988/10/13	110.00
1988/10/14	155.80
1988/10/15	178.90
1988/10/16	194.30
1988/10/17	244.50
1988/10/18	231.50
1988/10/19	205.30
1988/10/20	207.50
1988/10/21	166.80
1988/10/22	162.40
1988/10/23	131.00
1988/10/24	105.20
1988/10/25	93.50
1988/10/26	78.20
1988/10/27	65.40
1988/10/28	55.30
1988/10/29	51.10
1988/10/30	47.60
1988/10/31	45.50
1988/11/01	42.70
1988/11/02	39.60
1988/11/03	36.00
1988/11/04	35.00
1988/11/05	34.50
1988/11/06	35.50
1988/11/07	36.60
1988/11/08	32.00
1988/11/09	30.00
1988/11/10	29.00
1988/11/11	28.50
1988/11/12	34.00
1988/11/13	32.00
1988/11/14	31.00
1988/11/15	30.00
1988/11/16	29.00
1988/11/17	28.00
1988/11/18	31.00
1988/11/19	33.00
1988/11/20	34.00
1988/11/21	36.00
1988/11/22	37.80
1988/11/23	39.00
1988/11/24	36.00
1988/11/25	33.00
1988/11/26	31.50
1988/11/27	30.50
1988/11/28	29.50
1988/11/29	28.50
1988/11/30	28.00
1988/12/01	27.00
1988/12/02	25.50
1988/12/03	25.00
1988/12/04	23.50
1988/12/05	23.00
1988/12/06	22.50
1988/12/07	21.00
1988/12/08	20.20
1988/12/09	19.00
1988/12/10	17.80
1988/12/11	17.40
1988/12/12	16.20
1988/12/13	15.40
1988/12/14	14.60
1988/12/15	14.20
1988/12/16	13.40
1988/12/17	12.60
1988/12/18	11.80
1988/12/19	11.40
1988/12/20	11.00
1988/12/21	10.60
1988/12/22	10.20
1988/12/23	10.20
1988/12/24	9.80
1988/12/25	9.80
1988/12/26	9.80
1988/12/27	9.40
1988/12/28	8.70
1988/12/29	8.40
1988/12/30	8.10
1988/12/31	7.80
#===========================================
# Number of observations = 366 / 366
# Average = 78.48