1981/01/01	1.24
1981/01/02	1.20
1981/01/03	1.20
1981/01/04	1.28
1981/01/05	1.24
1981/01/06	1.20
1981/01/07	1.20
1981/01/08	1.16
1981/01/09	1.16
1981/01/10	1.12
1981/01/11	1.04
1981/01/12	1.04
1981/01/13	1.04
1981/01/14	1.04
1981/01/15	1.04
1981/01/16	1.00
1981/01/17	1.00
1981/01/18	0.97
1981/01/19	0.97
1981/01/20	0.97
1981/01/21	0.97
1981/01/22	1.16
1981/01/23	1.20
1981/01/24	1.32
1981/01/25	1.36
1981/01/26	1.45
1981/01/27	1.58
1981/01/28	1.63
1981/01/29	1.67
1981/01/30	1.67
1981/01/31	1.04
1981/02/01	0.35
1981/02/02	0.25
1981/02/03	0.33
1981/02/04	0.69
1981/02/05	0.62
1981/02/06	0.50
1981/02/07	0.53
1981/02/08	0.65
1981/02/09	0.65
1981/02/10	0.72
1981/02/11	0.69
1981/02/12	0.65
1981/02/13	0.65
1981/02/14	0.93
1981/02/15	1.40
1981/02/16	0.62
1981/02/17	0.33
1981/02/18	0.53
1981/02/19	0.62
1981/02/20	0.65
1981/02/21	0.69
1981/02/22	0.69
1981/02/23	0.65
1981/02/24	0.69
1981/02/25	0.56
1981/02/26	0.53
1981/02/27	0.56
1981/02/28	0.59
1981/03/01	0.53
1981/03/02	0.50
1981/03/03	0.59
1981/03/04	0.56
1981/03/05	0.65
1981/03/06	0.69
1981/03/07	0.65
1981/03/08	0.62
1981/03/09	0.62
1981/03/10	0.59
1981/03/11	0.56
1981/03/12	0.50
1981/03/13	0.47
1981/03/14	0.47
1981/03/15	0.44
1981/03/16	0.44
1981/03/17	0.44
1981/03/18	0.47
1981/03/19	0.47
1981/03/20	0.50
1981/03/21	0.47
1981/03/22	0.47
1981/03/23	0.44
1981/03/24	0.44
1981/03/25	0.50
1981/03/26	0.47
1981/03/27	0.44
1981/03/28	0.44
1981/03/29	0.41
1981/03/30	0.38
1981/03/31	0.44
1981/04/01	0.38
1981/04/02	0.38
1981/04/03	0.38
1981/04/04	0.36
1981/04/05	0.36
1981/04/06	0.34
1981/04/07	0.36
1981/04/08	0.38
1981/04/09	0.36
1981/04/10	0.36
1981/04/11	0.28
1981/04/12	0.28
1981/04/13	0.34
1981/04/14	0.38
1981/04/15	0.38
1981/04/16	0.87
1981/04/17	0.72
1981/04/18	0.69
1981/04/19	0.55
1981/04/20	0.46
1981/04/21	0.46
1981/04/22	0.43
1981/04/23	0.38
1981/04/24	0.36
1981/04/25	0.32
1981/04/26	0.32
1981/04/27	1.17
1981/04/28	0.93
1981/04/29	0.69
1981/04/30	0.63
1981/05/01	0.66
1981/05/02	0.63
1981/05/03	0.93
1981/05/04	1.64
1981/05/05	2.13
1981/05/06	0.93
1981/05/07	0.38
1981/05/08	0.32
1981/05/09	0.32
1981/05/10	0.32
1981/05/11	0.32
1981/05/12	0.32
1981/05/13	0.22
1981/05/14	0.22
1981/05/15	0.22
1981/05/16	0.22
1981/05/17	0.22
1981/05/18	0.43
1981/05/19	2.09
1981/05/20	1.56
1981/05/21	1.17
1981/05/22	2.09
1981/05/23	1.92
1981/05/24	1.68
1981/05/25	1.72
1981/05/26	1.68
1981/05/27	1.10
1981/05/28	1.07
1981/05/29	0.97
1981/05/30	0.81
1981/05/31	0.97
1981/06/01	1.04
1981/06/02	1.14
1981/06/03	0.97
1981/06/04	0.90
1981/06/05	0.81
1981/06/06	0.78
1981/06/07	0.78
1981/06/08	0.93
1981/06/09	0.90
1981/06/10	0.87
1981/06/11	0.69
1981/06/12	0.24
1981/06/13	0.22
1981/06/14	0.22
1981/06/15	0.66
1981/06/16	0.84
1981/06/17	0.81
1981/06/18	0.90
1981/06/19	0.41
1981/06/20	0.34
1981/06/21	0.34
1981/06/22	0.32
1981/06/23	0.58
1981/06/24	0.63
1981/06/25	0.75
1981/06/26	0.84
1981/06/27	0.84
1981/06/28	0.60
1981/06/29	0.48
1981/06/30	0.75
1981/07/01	1.21
1981/07/02	1.07
1981/07/03	1.14
1981/07/04	1.10
1981/07/05	1.07
1981/07/06	2.09
1981/07/07	1.92
1981/07/08	1.84
1981/07/09	1.80
1981/07/10	1.68
1981/07/11	1.46
1981/07/12	1.28
1981/07/13	1.14
1981/07/14	1.10
1981/07/15	1.10
1981/07/16	1.72
1981/07/17	2.04
1981/07/18	1.49
1981/07/19	1.49
1981/07/20	1.35
1981/07/21	1.53
1981/07/22	0.90
1981/07/23	0.66
1981/07/24	0.43
1981/07/25	-9999
1981/07/26	-9999
1981/07/27	-9999
1981/07/28	-9999
1981/07/29	-9999
1981/07/30	-9999
1981/07/31	-9999
1981/08/01	1.53
1981/08/02	1.44
1981/08/03	1.44
1981/08/04	1.44
1981/08/05	1.12
1981/08/06	1.04
1981/08/07	1.04
1981/08/08	1.04
1981/08/09	1.04
1981/08/10	1.00
1981/08/11	0.96
1981/08/12	0.82
1981/08/13	0.79
1981/08/14	1.08
1981/08/15	1.16
1981/08/16	1.32
1981/08/17	1.53
1981/08/18	1.67
1981/08/19	1.67
1981/08/20	0.82
1981/08/21	0.44
1981/08/22	1.36
1981/08/23	1.85
1981/08/24	1.80
1981/08/25	1.90
1981/08/26	2.10
1981/08/27	1.95
1981/08/28	1.76
1981/08/29	1.71
1981/08/30	1.63
1981/08/31	2.05
1981/09/01	1.24
1981/09/02	2.00
1981/09/03	1.90
1981/09/04	1.76
1981/09/05	1.67
1981/09/06	1.85
1981/09/07	1.95
1981/09/08	0.35
1981/09/09	0.09
1981/09/10	0.09
1981/09/11	0.47
1981/09/12	1.76
1981/09/13	1.63
1981/09/14	1.67
1981/09/15	1.85
1981/09/16	1.90
1981/09/17	1.85
1981/09/18	1.85
1981/09/19	1.76
1981/09/20	1.85
1981/09/21	1.76
1981/09/22	1.71
1981/09/23	1.80
1981/09/24	1.71
1981/09/25	1.90
1981/09/26	1.90
1981/09/27	1.85
1981/09/28	1.90
1981/09/29	2.00
1981/09/30	2.00
1981/10/01	2.05
1981/10/02	1.76
1981/10/03	1.20
1981/10/04	1.40
1981/10/05	1.00
1981/10/06	0.53
1981/10/07	1.90
1981/10/08	1.95
1981/10/09	2.10
1981/10/10	2.10
1981/10/11	2.10
1981/10/12	2.05
1981/10/13	1.90
1981/10/14	1.71
1981/10/15	2.00
1981/10/16	2.63
1981/10/17	2.63
1981/10/18	2.57
1981/10/19	2.46
1981/10/20	2.63
1981/10/21	2.57
1981/10/22	2.52
1981/10/23	2.52
1981/10/24	2.46
1981/10/25	2.41
1981/10/26	1.67
1981/10/27	2.46
1981/10/28	2.57
1981/10/29	2.52
1981/10/30	2.57
1981/10/31	2.63
1981/11/01	2.57
1981/11/02	2.68
1981/11/03	2.63
1981/11/04	2.52
1981/11/05	2.46
1981/11/06	2.41
1981/11/07	2.41
1981/11/08	2.52
1981/11/09	2.63
1981/11/10	2.30
1981/11/11	0.86
1981/11/12	2.05
1981/11/13	1.00
1981/11/14	0.14
1981/11/15	0.11
1981/11/16	0.11
1981/11/17	0.31
1981/11/18	0.29
1981/11/19	0.21
1981/11/20	0.17
1981/11/21	0.14
1981/11/22	0.12
1981/11/23	0.11
1981/11/24	0.11
1981/11/25	0.11
1981/11/26	0.25
1981/11/27	0.25
1981/11/28	0.25
1981/11/29	0.25
1981/11/30	0.25
1981/12/01	0.25
1981/12/02	0.25
1981/12/03	0.21
1981/12/04	0.15
1981/12/05	0.15
1981/12/06	0.27
1981/12/07	0.38
1981/12/08	0.35
1981/12/09	0.35
1981/12/10	0.35
1981/12/11	0.35
1981/12/12	0.76
1981/12/13	1.04
1981/12/14	1.12
1981/12/15	0.79
1981/12/16	0.35
1981/12/17	0.35
1981/12/18	0.33
1981/12/19	0.62
1981/12/20	0.68
1981/12/21	0.65
1981/12/22	0.56
1981/12/23	0.53
1981/12/24	0.93
1981/12/25	1.00
1981/12/26	1.04
1981/12/27	1.08
1981/12/28	1.08
1981/12/29	1.20
1981/12/30	1.20
1981/12/31	1.20
#===========================================
# Number of observations = 358 / 365
# Average = 1.05