1957/01/01	23.00
1957/01/02	23.00
1957/01/03	23.00
1957/01/04	22.00
1957/01/05	21.00
1957/01/06	20.00
1957/01/07	19.00
1957/01/08	19.00
1957/01/09	19.00
1957/01/10	19.00
1957/01/11	19.00
1957/01/12	9.00
1957/01/13	19.00
1957/01/14	19.00
1957/01/15	18.00
1957/01/16	18.00
1957/01/17	18.00
1957/01/18	18.00
1957/01/19	18.00
1957/01/20	18.00
1957/01/21	17.00
1957/01/22	17.00
1957/01/23	17.00
1957/01/24	17.00
1957/01/25	17.00
1957/01/26	16.00
1957/01/27	16.00
1957/01/28	16.00
1957/01/29	16.00
1957/01/30	16.00
1957/01/31	16.00
1957/02/01	16.00
1957/02/02	16.00
1957/02/03	15.00
1957/02/04	15.00
1957/02/05	15.00
1957/02/06	14.00
1957/02/07	14.00
1957/02/08	14.00
1957/02/09	14.00
1957/02/10	14.00
1957/02/11	14.00
1957/02/12	13.00
1957/02/13	13.00
1957/02/14	15.00
1957/02/15	15.00
1957/02/16	14.00
1957/02/17	13.00
1957/02/18	13.00
1957/02/19	12.00
1957/02/20	12.00
1957/02/21	12.00
1957/02/22	12.00
1957/02/23	12.00
1957/02/24	11.00
1957/02/25	11.00
1957/02/26	11.00
1957/02/27	11.00
1957/02/28	10.00
1957/03/01	11.00
1957/03/02	11.00
1957/03/03	11.00
1957/03/04	11.00
1957/03/05	11.00
1957/03/06	10.00
1957/03/07	10.00
1957/03/08	10.00
1957/03/09	10.00
1957/03/10	9.90
1957/03/11	9.90
1957/03/12	9.30
1957/03/13	9.30
1957/03/14	9.30
1957/03/15	9.30
1957/03/16	9.30
1957/03/17	9.00
1957/03/18	9.00
1957/03/19	9.00
1957/03/20	9.00
1957/03/21	9.00
1957/03/22	9.00
1957/03/23	9.00
1957/03/24	9.00
1957/03/25	8.70
1957/03/26	8.50
1957/03/27	8.20
1957/03/28	8.20
1957/03/29	8.00
1957/03/30	8.00
1957/03/31	7.70
1957/04/01	4.96
1957/04/02	4.96
1957/04/03	4.64
1957/04/04	12.00
1957/04/05	21.00
1957/04/06	9.36
1957/04/07	7.92
1957/04/08	6.56
1957/04/09	5.92
1957/04/10	5.28
1957/04/11	3.60
1957/04/12	0.80
1957/04/13	0.92
1957/04/14	9.72
1957/04/15	6.88
1957/04/16	6.56
1957/04/17	7.56
1957/04/18	4.64
1957/04/19	4.00
1957/04/20	3.80
1957/04/21	3.60
1957/04/22	3.60
1957/04/23	3.40
1957/04/24	3.20
1957/04/25	3.00
1957/04/26	3.00
1957/04/27	3.00
1957/04/28	3.00
1957/04/29	2.80
1957/04/30	2.80
1957/05/01	2.80
1957/05/02	29.00
1957/05/03	12.00
1957/05/04	8.28
1957/05/05	7.20
1957/05/06	6.56
1957/05/07	6.24
1957/05/08	5.92
1957/05/09	5.28
1957/05/10	4.64
1957/05/11	4.96
1957/05/12	7.92
1957/05/13	5.92
1957/05/14	4.96
1957/05/15	4.64
1957/05/16	4.32
1957/05/17	4.00
1957/05/18	4.00
1957/05/19	5.92
1957/05/20	11.00
1957/05/21	8.28
1957/05/22	13.00
1957/05/23	9.00
1957/05/24	7.56
1957/05/25	6.56
1957/05/26	16.00
1957/05/27	41.00
1957/05/28	17.00
1957/05/29	12.00
1957/05/30	11.00
1957/05/31	9.00
1957/06/01	10.00
1957/06/02	12.00
1957/06/03	20.00
1957/06/04	27.00
1957/06/05	23.00
1957/06/06	14.00
1957/06/07	14.00
1957/06/08	12.00
1957/06/09	19.00
1957/06/10	19.00
1957/06/11	21.00
1957/06/12	23.00
1957/06/13	23.00
1957/06/14	20.00
1957/06/15	18.00
1957/06/16	15.00
1957/06/17	12.00
1957/06/18	11.00
1957/06/19	12.00
1957/06/20	15.00
1957/06/21	14.00
1957/06/22	16.00
1957/06/23	27.00
1957/06/24	28.00
1957/06/25	24.00
1957/06/26	19.00
1957/06/27	15.00
1957/06/28	20.00
1957/06/29	15.00
1957/06/30	11.00
1957/07/01	9.36
1957/07/02	12.00
1957/07/03	17.00
1957/07/04	15.00
1957/07/05	14.00
1957/07/06	15.00
1957/07/07	14.00
1957/07/08	13.00
1957/07/09	13.00
1957/07/10	12.00
1957/07/11	9.72
1957/07/12	10.00
1957/07/13	4.96
1957/07/14	4.00
1957/07/15	4.00
1957/07/16	7.56
1957/07/17	14.00
1957/07/18	19.00
1957/07/19	27.00
1957/07/20	29.00
1957/07/21	32.00
1957/07/22	33.00
1957/07/23	34.00
1957/07/24	35.00
1957/07/25	35.00
1957/07/26	37.00
1957/07/27	38.00
1957/07/28	34.00
1957/07/29	30.00
1957/07/30	31.00
1957/07/31	27.00
1957/08/01	32.00
1957/08/02	39.00
1957/08/03	33.00
1957/08/04	30.00
1957/08/05	29.00
1957/08/06	35.00
1957/08/07	39.00
1957/08/08	40.00
1957/08/09	35.00
1957/08/10	29.00
1957/08/11	25.00
1957/08/12	28.00
1957/08/13	35.00
1957/08/14	34.00
1957/08/15	27.00
1957/08/16	24.00
1957/08/17	25.00
1957/08/18	24.00
1957/08/19	26.00
1957/08/20	31.00
1957/08/21	35.00
1957/08/22	36.00
1957/08/23	33.00
1957/08/24	30.00
1957/08/25	32.00
1957/08/26	34.00
1957/08/27	33.00
1957/08/28	31.00
1957/08/29	30.00
1957/08/30	28.00
1957/08/31	27.00
1957/09/01	30.00
1957/09/02	35.00
1957/09/03	43.00
1957/09/04	59.00
1957/09/05	87.00
1957/09/06	97.00
1957/09/07	105.00
1957/09/08	81.00
1957/09/09	64.00
1957/09/10	54.00
1957/09/11	45.00
1957/09/12	43.00
1957/09/13	40.00
1957/09/14	36.00
1957/09/15	31.00
1957/09/16	61.00
1957/09/17	36.00
1957/09/18	36.00
1957/09/19	38.00
1957/09/20	39.00
1957/09/21	70.00
1957/09/22	59.00
1957/09/23	42.00
1957/09/24	38.00
1957/09/25	37.00
1957/09/26	36.00
1957/09/27	31.00
1957/09/28	31.00
1957/09/29	30.00
1957/09/30	33.00
1957/10/01	34.00
1957/10/02	52.00
1957/10/03	71.00
1957/10/04	81.00
1957/10/05	86.00
1957/10/06	60.00
1957/10/07	46.00
1957/10/08	44.00
1957/10/09	44.00
1957/10/10	42.00
1957/10/11	46.00
1957/10/12	42.00
1957/10/13	35.00
1957/10/14	33.00
1957/10/15	31.00
1957/10/16	31.00
1957/10/17	31.00
1957/10/18	31.00
1957/10/19	28.00
1957/10/20	35.00
1957/10/21	30.00
1957/10/22	28.00
1957/10/23	26.00
1957/10/24	26.00
1957/10/25	27.00
1957/10/26	25.00
1957/10/27	28.00
1957/10/28	23.00
1957/10/29	23.00
1957/10/30	22.00
1957/10/31	23.00
1957/11/01	24.00
1957/11/02	22.00
1957/11/03	21.00
1957/11/04	28.00
1957/11/05	30.00
1957/11/06	20.00
1957/11/07	21.00
1957/11/08	20.00
1957/11/09	20.00
1957/11/10	20.00
1957/11/11	18.00
1957/11/12	18.00
1957/11/13	18.00
1957/11/14	19.00
1957/11/15	20.00
1957/11/16	20.00
1957/11/17	20.00
1957/11/18	20.00
1957/11/19	20.00
1957/11/20	20.00
1957/11/21	19.00
1957/11/22	19.00
1957/11/23	19.00
1957/11/24	19.00
1957/11/25	18.00
1957/11/26	18.00
1957/11/27	16.00
1957/11/28	16.00
1957/11/29	16.00
1957/11/30	16.00
1957/12/01	16.00
1957/12/02	16.00
1957/12/03	15.00
1957/12/04	15.00
1957/12/05	15.00
1957/12/06	15.00
1957/12/07	16.00
1957/12/08	15.00
1957/12/09	16.00
1957/12/10	15.00
1957/12/11	15.00
1957/12/12	15.00
1957/12/13	15.00
1957/12/14	14.00
1957/12/15	14.00
1957/12/16	14.00
1957/12/17	14.00
1957/12/18	14.00
1957/12/19	13.00
1957/12/20	13.00
1957/12/21	12.00
1957/12/22	12.00
1957/12/23	11.00
1957/12/24	12.00
1957/12/25	9.72
1957/12/26	10.00
1957/12/27	10.00
1957/12/28	13.00
1957/12/29	12.00
1957/12/30	12.00
1957/12/31	12.00
#===========================================
# Number of observations = 365 / 365
# Total = 7477.4
# Average = 20.49