1981/01/01	1.30
1981/01/02	1.30
1981/01/03	1.30
1981/01/04	1.15
1981/01/05	1.15
1981/01/06	1.15
1981/01/07	1.15
1981/01/08	1.15
1981/01/09	1.15
1981/01/10	1.00
1981/01/11	1.00
1981/01/12	1.00
1981/01/13	0.95
1981/01/14	0.95
1981/01/15	0.95
1981/01/16	0.90
1981/01/17	0.90
1981/01/18	0.85
1981/01/19	0.85
1981/01/20	0.80
1981/01/21	0.80
1981/01/22	0.80
1981/01/23	0.80
1981/01/24	0.80
1981/01/25	0.80
1981/01/26	0.80
1981/01/27	0.80
1981/01/28	0.80
1981/01/29	0.80
1981/01/30	0.80
1981/01/31	0.75
1981/02/01	0.75
1981/02/02	0.75
1981/02/03	0.75
1981/02/04	0.75
1981/02/05	0.70
1981/02/06	0.65
1981/02/07	0.65
1981/02/08	0.65
1981/02/09	0.65
1981/02/10	0.65
1981/02/11	0.65
1981/02/12	0.60
1981/02/13	0.60
1981/02/14	0.60
1981/02/15	0.60
1981/02/16	0.60
1981/02/17	0.55
1981/02/18	0.55
1981/02/19	0.55
1981/02/20	0.55
1981/02/21	0.55
1981/02/22	0.50
1981/02/23	0.50
1981/02/24	0.50
1981/02/25	0.50
1981/02/26	0.50
1981/02/27	0.50
1981/02/28	0.50
1981/03/01	0.45
1981/03/02	0.40
1981/03/03	0.40
1981/03/04	0.40
1981/03/05	0.40
1981/03/06	0.40
1981/03/07	0.45
1981/03/08	0.55
1981/03/09	0.50
1981/03/10	0.50
1981/03/11	0.75
1981/03/12	0.90
1981/03/13	0.80
1981/03/14	0.65
1981/03/15	0.60
1981/03/16	0.60
1981/03/17	0.50
1981/03/18	0.50
1981/03/19	0.50
1981/03/20	0.45
1981/03/21	0.40
1981/03/22	0.45
1981/03/23	0.45
1981/03/24	0.35
1981/03/25	0.25
1981/03/26	0.30
1981/03/27	0.30
1981/03/28	0.30
1981/03/29	0.30
1981/03/30	0.30
1981/03/31	0.30
1981/04/01	0.45
1981/04/02	0.45
1981/04/03	0.41
1981/04/04	0.41
1981/04/05	0.41
1981/04/06	0.41
1981/04/07	0.41
1981/04/08	0.41
1981/04/09	0.41
1981/04/10	0.45
1981/04/11	0.41
1981/04/12	0.41
1981/04/13	3.40
1981/04/14	3.55
1981/04/15	2.65
1981/04/16	1.75
1981/04/17	7.50
1981/04/18	6.70
1981/04/19	4.75
1981/04/20	2.65
1981/04/21	1.90
1981/04/22	1.45
1981/04/23	0.96
1981/04/24	0.91
1981/04/25	1.30
1981/04/26	1.45
1981/04/27	1.00
1981/04/28	2.65
1981/04/29	4.15
1981/04/30	3.40
1981/05/01	2.65
1981/05/02	1.90
1981/05/03	7.80
1981/05/04	21.10
1981/05/05	8.10
1981/05/06	12.90
1981/05/07	11.40
1981/05/08	5.70
1981/05/09	4.30
1981/05/10	4.15
1981/05/11	4.30
1981/05/12	3.40
1981/05/13	2.80
1981/05/14	2.35
1981/05/15	2.05
1981/05/16	1.75
1981/05/17	6.70
1981/05/18	23.15
1981/05/19	31.78
1981/05/20	17.10
1981/05/21	13.50
1981/05/22	87.20
1981/05/23	109.60
1981/05/24	66.35
1981/05/25	48.60
1981/05/26	26.60
1981/05/27	24.30
1981/05/28	12.90
1981/05/29	9.30
1981/05/30	11.40
1981/05/31	8.70
1981/06/01	6.50
1981/06/02	13.90
1981/06/03	33.50
1981/06/04	36.75
1981/06/05	22.58
1981/06/06	14.30
1981/06/07	9.30
1981/06/08	7.10
1981/06/09	5.90
1981/06/10	5.05
1981/06/11	4.75
1981/06/12	4.60
1981/06/13	4.00
1981/06/14	3.85
1981/06/15	3.55
1981/06/16	4.30
1981/06/17	4.00
1981/06/18	4.30
1981/06/19	5.70
1981/06/20	9.00
1981/06/21	6.90
1981/06/22	5.35
1981/06/23	4.90
1981/06/24	5.20
1981/06/25	8.70
1981/06/26	13.90
1981/06/27	14.70
1981/06/28	11.70
1981/06/29	7.50
1981/06/30	6.30
1981/07/01	5.35
1981/07/02	4.90
1981/07/03	4.45
1981/07/04	4.30
1981/07/05	5.05
1981/07/06	231.10
1981/07/07	533.75
1981/07/08	183.50
1981/07/09	67.30
1981/07/10	84.05
1981/07/11	59.25
1981/07/12	35.45
1981/07/13	24.30
1981/07/14	17.95
1981/07/15	14.30
1981/07/16	60.95
1981/07/17	61.80
1981/07/18	41.40
1981/07/19	269.30
1981/07/20	308.30
1981/07/21	155.50
1981/07/22	231.10
1981/07/23	107.30
1981/07/24	63.50
1981/07/25	66.35
1981/07/26	47.80
1981/07/27	34.80
1981/07/28	31.78
1981/07/29	28.32
1981/07/30	28.90
1981/07/31	59.25
1981/08/01	50.20
1981/08/02	68.25
1981/08/03	65.40
1981/08/04	72.05
1981/08/05	140.65
1981/08/06	129.85
1981/08/07	107.30
1981/08/08	79.00
1981/08/09	51.80
1981/08/10	40.00
1981/08/11	34.15
1981/08/12	33.50
1981/08/13	32.92
1981/08/14	26.60
1981/08/15	20.20
1981/08/16	17.10
1981/08/17	14.70
1981/08/18	12.90
1981/08/19	11.70
1981/08/20	11.10
1981/08/21	13.90
1981/08/22	11.70
1981/08/23	11.10
1981/08/24	10.20
1981/08/25	9.00
1981/08/26	8.10
1981/08/27	7.50
1981/08/28	7.30
1981/08/29	7.30
1981/08/30	7.30
1981/08/31	6.90
1981/09/01	7.80
1981/09/02	13.20
1981/09/03	38.70
1981/09/04	33.50
1981/09/05	22.58
1981/09/06	22.58
1981/09/07	23.73
1981/09/08	20.65
1981/09/09	19.75
1981/09/10	15.90
1981/09/11	16.30
1981/09/12	13.20
1981/09/13	12.90
1981/09/14	11.10
1981/09/15	8.70
1981/09/16	7.50
1981/09/17	7.10
1981/09/18	6.90
1981/09/19	7.10
1981/09/20	6.70
1981/09/21	6.10
1981/09/22	5.70
1981/09/23	13.20
1981/09/24	12.60
1981/09/25	9.30
1981/09/26	9.00
1981/09/27	7.80
1981/09/28	10.20
1981/09/29	15.10
1981/09/30	12.00
1981/10/01	9.30
1981/10/02	9.60
1981/10/03	7.80
1981/10/04	6.90
1981/10/05	6.50
1981/10/06	6.70
1981/10/07	6.70
1981/10/08	7.50
1981/10/09	12.60
1981/10/10	14.70
1981/10/11	10.80
1981/10/12	8.70
1981/10/13	6.90
1981/10/14	6.30
1981/10/15	5.90
1981/10/16	6.70
1981/10/17	9.30
1981/10/18	21.55
1981/10/19	21.10
1981/10/20	23.73
1981/10/21	17.10
1981/10/22	12.90
1981/10/23	11.70
1981/10/24	11.10
1981/10/25	10.20
1981/10/26	8.40
1981/10/27	7.10
1981/10/28	6.70
1981/10/29	6.30
1981/10/30	5.90
1981/10/31	5.50
1981/11/01	5.20
1981/11/02	4.90
1981/11/03	4.90
1981/11/04	5.05
1981/11/05	14.30
1981/11/06	17.10
1981/11/07	11.10
1981/11/08	8.70
1981/11/09	6.70
1981/11/10	6.10
1981/11/11	5.70
1981/11/12	5.35
1981/11/13	5.20
1981/11/14	5.05
1981/11/15	5.05
1981/11/16	5.05
1981/11/17	5.05
1981/11/18	5.05
1981/11/19	5.05
1981/11/20	4.90
1981/11/21	4.60
1981/11/22	4.30
1981/11/23	4.15
1981/11/24	4.15
1981/11/25	4.00
1981/11/26	3.85
1981/11/27	3.85
1981/11/28	3.55
1981/11/29	3.40
1981/11/30	3.25
1981/12/01	3.10
1981/12/02	3.10
1981/12/03	2.80
1981/12/04	2.80
1981/12/05	2.65
1981/12/06	2.65
1981/12/07	2.50
1981/12/08	2.35
1981/12/09	2.20
1981/12/10	2.20
1981/12/11	2.20
1981/12/12	2.20
1981/12/13	2.05
1981/12/14	1.90
1981/12/15	1.75
1981/12/16	1.60
1981/12/17	1.45
1981/12/18	1.45
1981/12/19	1.45
1981/12/20	1.30
1981/12/21	1.30
1981/12/22	1.00
1981/12/23	1.00
1981/12/24	1.00
1981/12/25	1.00
1981/12/26	1.00
1981/12/27	1.00
1981/12/28	1.00
1981/12/29	1.00
1981/12/30	1.00
1981/12/31	1.00
#===========================================
# Number of observations = 365 / 365
# Average = 16.30