1980/01/01	-9999
1980/01/02	-9999
1980/01/03	-9999
1980/01/04	-9999
1980/01/05	-9999
1980/01/06	-9999
1980/01/07	-9999
1980/01/08	-9999
1980/01/09	-9999
1980/01/10	-9999
1980/01/11	-9999
1980/01/12	-9999
1980/01/13	-9999
1980/01/14	-9999
1980/01/15	-9999
1980/01/16	-9999
1980/01/17	-9999
1980/01/18	-9999
1980/01/19	-9999
1980/01/20	-9999
1980/01/21	-9999
1980/01/22	-9999
1980/01/23	-9999
1980/01/24	-9999
1980/01/25	-9999
1980/01/26	-9999
1980/01/27	-9999
1980/01/28	-9999
1980/01/29	-9999
1980/01/30	-9999
1980/01/31	-9999
1980/02/01	-9999
1980/02/02	-9999
1980/02/03	-9999
1980/02/04	-9999
1980/02/05	-9999
1980/02/06	-9999
1980/02/07	-9999
1980/02/08	-9999
1980/02/09	-9999
1980/02/10	-9999
1980/02/11	-9999
1980/02/12	-9999
1980/02/13	-9999
1980/02/14	-9999
1980/02/15	-9999
1980/02/16	-9999
1980/02/17	-9999
1980/02/18	-9999
1980/02/19	-9999
1980/02/20	-9999
1980/02/21	-9999
1980/02/22	-9999
1980/02/23	-9999
1980/02/24	-9999
1980/02/25	-9999
1980/02/26	-9999
1980/02/27	-9999
1980/02/28	-9999
1980/02/29	-9999
1980/03/01	-9999
1980/03/02	-9999
1980/03/03	-9999
1980/03/04	-9999
1980/03/05	-9999
1980/03/06	-9999
1980/03/07	-9999
1980/03/08	-9999
1980/03/09	-9999
1980/03/10	-9999
1980/03/11	-9999
1980/03/12	-9999
1980/03/13	-9999
1980/03/14	-9999
1980/03/15	-9999
1980/03/16	-9999
1980/03/17	-9999
1980/03/18	-9999
1980/03/19	-9999
1980/03/20	-9999
1980/03/21	-9999
1980/03/22	-9999
1980/03/23	-9999
1980/03/24	-9999
1980/03/25	-9999
1980/03/26	-9999
1980/03/27	-9999
1980/03/28	-9999
1980/03/29	-9999
1980/03/30	-9999
1980/03/31	-9999
1980/04/01	3.77
1980/04/02	3.62
1980/04/03	5.91
1980/04/04	5.15
1980/04/05	4.39
1980/04/06	4.20
1980/04/07	4.06
1980/04/08	4.39
1980/04/09	3.91
1980/04/10	3.91
1980/04/11	3.62
1980/04/12	3.62
1980/04/13	3.48
1980/04/14	3.48
1980/04/15	3.34
1980/04/16	3.34
1980/04/17	4.96
1980/04/18	6.32
1980/04/19	4.58
1980/04/20	4.06
1980/04/21	3.77
1980/04/22	3.48
1980/04/23	3.34
1980/04/24	3.34
1980/04/25	3.19
1980/04/26	3.19
1980/04/27	3.19
1980/04/28	3.19
1980/04/29	3.19
1980/04/30	3.05
1980/05/01	3.34
1980/05/02	3.34
1980/05/03	3.05
1980/05/04	3.91
1980/05/05	5.53
1980/05/06	5.15
1980/05/07	4.06
1980/05/08	3.48
1980/05/09	3.34
1980/05/10	3.19
1980/05/11	3.05
1980/05/12	2.90
1980/05/13	2.90
1980/05/14	2.90
1980/05/15	2.76
1980/05/16	2.65
1980/05/17	2.65
1980/05/18	2.54
1980/05/19	2.76
1980/05/20	3.77
1980/05/21	4.39
1980/05/22	4.39
1980/05/23	9.84
1980/05/24	12.24
1980/05/25	14.76
1980/05/26	8.30
1980/05/27	11.95
1980/05/28	8.30
1980/05/29	11.37
1980/05/30	8.08
1980/05/31	6.76
1980/06/01	5.15
1980/06/02	5.15
1980/06/03	17.82
1980/06/04	18.16
1980/06/05	10.50
1980/06/06	7.86
1980/06/07	6.32
1980/06/08	5.72
1980/06/09	7.42
1980/06/10	5.91
1980/06/11	7.20
1980/06/12	5.91
1980/06/13	6.76
1980/06/14	8.74
1980/06/15	9.84
1980/06/16	54.28
1980/06/17	19.86
1980/06/18	11.37
1980/06/19	38.60
1980/06/20	12.82
1980/06/21	15.44
1980/06/22	16.12
1980/06/23	27.32
1980/06/24	17.48
1980/06/25	12.82
1980/06/26	9.84
1980/06/27	10.50
1980/06/28	10.50
1980/06/29	8.96
1980/06/30	8.30
1980/07/01	8.74
1980/07/02	8.30
1980/07/03	6.76
1980/07/04	6.10
1980/07/05	5.53
1980/07/06	6.10
1980/07/07	6.10
1980/07/08	6.76
1980/07/09	8.74
1980/07/10	9.40
1980/07/11	7.64
1980/07/12	7.20
1980/07/13	6.32
1980/07/14	6.32
1980/07/15	6.10
1980/07/16	6.10
1980/07/17	6.32
1980/07/18	5.72
1980/07/19	5.34
1980/07/20	8.08
1980/07/21	14.08
1980/07/22	42.20
1980/07/23	44.16
1980/07/24	19.52
1980/07/25	23.08
1980/07/26	42.80
1980/07/27	49.60
1980/07/28	48.92
1980/07/29	31.40
1980/07/30	34.40
1980/07/31	25.58
1980/08/01	19.18
1980/08/02	18.16
1980/08/03	15.78
1980/08/04	15.78
1980/08/05	12.53
1980/08/06	11.37
1980/08/07	10.79
1980/08/08	9.84
1980/08/09	9.62
1980/08/10	9.18
1980/08/11	8.74
1980/08/12	8.30
1980/08/13	8.08
1980/08/14	9.18
1980/08/15	8.08
1980/08/16	8.74
1980/08/17	9.40
1980/08/18	9.84
1980/08/19	13.40
1980/08/20	13.74
1980/08/21	13.74
1980/08/22	15.44
1980/08/23	15.10
1980/08/24	14.42
1980/08/25	19.86
1980/08/26	16.46
1980/08/27	14.76
1980/08/28	12.24
1980/08/29	11.08
1980/08/30	12.53
1980/08/31	27.32
1980/09/01	63.56
1980/09/02	156.56
1980/09/03	102.32
1980/09/04	64.44
1980/09/05	70.90
1980/09/06	58.28
1980/09/07	104.48
1980/09/08	95.40
1980/09/09	82.18
1980/09/10	81.24
1980/09/11	106.64
1980/09/12	100.16
1980/09/13	61.80
1980/09/14	46.88
1980/09/15	50.38
1980/09/16	67.14
1980/09/17	65.32
1980/09/18	55.06
1980/09/19	44.16
1980/09/20	39.80
1980/09/21	37.40
1980/09/22	33.80
1980/09/23	38.60
1980/09/24	33.80
1980/09/25	30.80
1980/09/26	26.74
1980/09/27	38.00
1980/09/28	33.80
1980/09/29	29.64
1980/09/30	29.64
1980/10/01	33.80
1980/10/02	31.40
1980/10/03	60.92
1980/10/04	60.04
1980/10/05	42.80
1980/10/06	36.20
1980/10/07	30.80
1980/10/08	30.22
1980/10/09	28.48
1980/10/10	26.16
1980/10/11	37.40
1980/10/12	33.80
1980/10/13	29.64
1980/10/14	26.74
1980/10/15	26.16
1980/10/16	31.40
1980/10/17	27.90
1980/10/18	28.48
1980/10/19	26.74
1980/10/20	50.38
1980/10/21	37.40
1980/10/22	30.22
1980/10/23	28.48
1980/10/24	26.16
1980/10/25	24.04
1980/10/26	22.60
1980/10/27	21.64
1980/10/28	20.20
1980/10/29	19.86
1980/10/30	19.52
1980/10/31	20.68
1980/11/01	20.20
1980/11/02	20.20
1980/11/03	19.52
1980/11/04	19.52
1980/11/05	18.84
1980/11/06	18.50
1980/11/07	18.16
1980/11/08	18.16
1980/11/09	19.52
1980/11/10	23.08
1980/11/11	18.16
1980/11/12	17.48
1980/11/13	17.14
1980/11/14	16.80
1980/11/15	16.12
1980/11/16	16.12
1980/11/17	15.78
1980/11/18	15.44
1980/11/19	15.10
1980/11/20	15.10
1980/11/21	14.76
1980/11/22	14.76
1980/11/23	14.76
1980/11/24	14.76
1980/11/25	15.10
1980/11/26	14.76
1980/11/27	14.08
1980/11/28	13.74
1980/11/29	13.40
1980/11/30	13.40
1980/12/01	13.11
1980/12/02	13.11
1980/12/03	12.82
1980/12/04	12.82
1980/12/05	12.82
1980/12/06	12.53
1980/12/07	12.24
1980/12/08	12.24
1980/12/09	12.24
1980/12/10	15.44
1980/12/11	14.42
1980/12/12	17.48
1980/12/13	20.20
1980/12/14	22.60
1980/12/15	16.46
1980/12/16	14.08
1980/12/17	13.11
1980/12/18	12.82
1980/12/19	12.82
1980/12/20	12.53
1980/12/21	12.24
1980/12/22	11.95
1980/12/23	11.95
1980/12/24	11.66
1980/12/25	11.66
1980/12/26	11.66
1980/12/27	11.37
1980/12/28	11.37
1980/12/29	11.08
1980/12/30	11.08
1980/12/31	11.08
#===========================================
# Number of observations = 275 / 366
# Average = 19.41