04/01/71	7.31
05/01/71	7.43
06/01/71	7.53
07/01/71	7.6
08/01/71	7.7
09/01/71	7.69
10/01/71	7.63
11/01/71	7.55
12/01/71	7.48
01/01/72	7.44
02/01/72	7.33
03/01/72	7.3
04/01/72	7.29
05/01/72	7.37
06/01/72	7.37
07/01/72	7.4
08/01/72	7.4
09/01/72	7.42
10/01/72	7.42
11/01/72	7.43
12/01/72	7.44
01/01/73	7.44
02/01/73	7.44
03/01/73	7.46
04/01/73	7.54
05/01/73	7.65
06/01/73	7.73
07/01/73	8.05
08/01/73	8.5
09/01/73	8.82
10/01/73	8.77
11/01/73	8.58
12/01/73	8.54
01/01/74	8.54
02/01/74	8.46
03/01/74	8.41
04/01/74	8.58
05/01/74	8.97
06/01/74	9.09
07/01/74	9.28
08/01/74	9.59
09/01/74	9.96
10/01/74	9.98
11/01/74	9.79
12/01/74	9.62
01/01/75	9.43
02/01/75	9.11
03/01/75	8.9
04/01/75	8.82
05/01/75	8.91
06/01/75	8.89
07/01/75	8.89
08/01/75	8.94
09/01/75	9.13
10/01/75	9.22
11/01/75	9.15
12/01/75	9.1
01/01/76	9.02
02/01/76	8.81
03/01/76	8.76
04/01/76	8.73
05/01/76	8.77
06/01/76	8.85
07/01/76	8.93
08/01/76	9
09/01/76	8.98
10/01/76	8.93
11/01/76	8.81
12/01/76	8.79
01/01/77	8.72
02/01/77	8.67
03/01/77	8.69
04/01/77	8.75
05/01/77	8.82
06/01/77	8.86
07/01/77	8.94
08/01/77	8.94
09/01/77	8.9
10/01/77	8.92
11/01/77	8.92
12/01/77	8.96
01/01/78	9.02
02/01/78	9.16
03/01/78	9.2
04/01/78	9.36
05/01/78	9.58
06/01/78	9.71
07/01/78	9.74
08/01/78	9.79
09/01/78	9.76
10/01/78	9.86
11/01/78	10.11
12/01/78	10.35
01/01/79	10.39
02/01/79	10.41
03/01/79	10.43
04/01/79	10.5
05/01/79	10.69
06/01/79	11.04
07/01/79	11.09
08/01/79	11.09
09/01/79	11.3
10/01/79	11.64
11/01/79	12.83
12/01/79	12.9
01/01/80	12.88
02/01/80	13.04
03/01/80	15.28
04/01/80	16.33
05/01/80	14.26
06/01/80	12.71
07/01/80	12.19
08/01/80	12.56
09/01/80	13.2
10/01/80	13.79
11/01/80	14.21
12/01/80	14.79
01/01/81	14.9
02/01/81	15.13
03/01/81	15.4
04/01/81	15.58
05/01/81	16.4
06/01/81	16.7
07/01/81	16.83
08/01/81	17.29
09/01/81	18.16
10/01/81	18.45
11/01/81	17.83
12/01/81	16.92
01/01/82	17.4
02/01/82	17.6
03/01/82	17.16
04/01/82	16.89
05/01/82	16.68
06/01/82	16.7
07/01/82	16.82
08/01/82	16.27
09/01/82	15.43
10/01/82	14.61
11/01/82	13.83
12/01/82	13.62
01/01/83	13.25
02/01/83	13.04
03/01/83	12.8
04/01/83	12.78
05/01/83	12.63
06/01/83	12.87
07/01/83	13.42
08/01/83	13.81
09/01/83	13.73
10/01/83	13.54
11/01/83	13.44
12/01/83	13.42
01/01/84	13.37
02/01/84	13.23
03/01/84	13.39
04/01/84	13.65
05/01/84	13.94
06/01/84	14.42
07/01/84	14.67
08/01/84	14.47
09/01/84	14.35
10/01/84	14.13
11/01/84	13.64
12/01/84	13.18
01/01/85	13.08
02/01/85	12.92
03/01/85	13.17
04/01/85	13.2
05/01/85	12.91
06/01/85	12.22
07/01/85	12.03
08/01/85	12.19
09/01/85	12.19
10/01/85	12.14
11/01/85	11.78
12/01/85	11.26
01/01/86	10.88
02/01/86	10.71
03/01/86	10.08
04/01/86	9.94
05/01/86	10.14
06/01/86	10.68
07/01/86	10.51
08/01/86	10.2
09/01/86	10.01
10/01/86	9.97
11/01/86	9.7
12/01/86	9.31
01/01/87	9.2
02/01/87	9.08
03/01/87	9.04
04/01/87	9.83
05/01/87	10.6
06/01/87	10.54
07/01/87	10.28
08/01/87	10.33
09/01/87	10.89
10/01/87	11.26
11/01/87	10.65
12/01/87	10.65
01/01/88	10.43
02/01/88	9.89
03/01/88	9.93
04/01/88	10.2
05/01/88	10.46
06/01/88	10.46
07/01/88	10.43
08/01/88	10.6
09/01/88	10.48
10/01/88	10.3
11/01/88	10.27
12/01/88	10.61
01/01/89	10.73
02/01/89	10.65
03/01/89	11.03
04/01/89	11.05
05/01/89	10.77
06/01/89	10.2
07/01/89	9.88
08/01/89	9.99
09/01/89	10.13
10/01/89	9.95
11/01/89	9.77
12/01/89	9.74
01/01/90	9.9
02/01/90	10.2
03/01/90	10.27
04/01/90	10.37
05/01/90	10.48
06/01/90	10.16
07/01/90	10.04
08/01/90	10.1
09/01/90	10.18
10/01/90	10.18
11/01/90	10.01
12/01/90	9.67
01/01/91	9.64
02/01/91	9.37
03/01/91	9.5
04/01/91	9.49
05/01/91	9.47
06/01/91	9.62
07/01/91	9.58
08/01/91	9.24
09/01/91	9.01
10/01/91	8.86
11/01/91	8.71
12/01/91	8.5
01/01/92	8.43
02/01/92	8.76
03/01/92	8.94
04/01/92	8.85
05/01/92	8.67
06/01/92	8.51
07/01/92	8.13
08/01/92	7.98
09/01/92	7.92
10/01/92	8.09
11/01/92	8.31
12/01/92	8.22
01/01/93	8.02
02/01/93	7.68
03/01/93	7.5
04/01/93	7.47
05/01/93	7.47
06/01/93	7.42
07/01/93	7.21
08/01/93	7.11
09/01/93	6.92
10/01/93	6.83
11/01/93	7.16
12/01/93	7.17
01/01/94	7.06
02/01/94	7.15
03/01/94	7.68
04/01/94	8.32
05/01/94	8.6
06/01/94	8.4
07/01/94	8.61
08/01/94	8.51
09/01/94	8.64
10/01/94	8.93
11/01/94	9.17
12/01/94	9.2
01/01/95	9.15
02/01/95	8.83
03/01/95	8.46
04/01/95	8.32
05/01/95	7.96
06/01/95	7.57
07/01/95	7.61
08/01/95	7.86
09/01/95	7.64
10/01/95	7.48
11/01/95	7.38
12/01/95	7.2
01/01/96	7.03
02/01/96	7.08
03/01/96	7.62
04/01/96	7.93
05/01/96	8.07
06/01/96	8.32
07/01/96	8.25
08/01/96	8
09/01/96	8.23
10/01/96	7.92
11/01/96	7.62
12/01/96	7.6
01/01/97	7.82
02/01/97	7.65
03/01/97	7.9
04/01/97	8.14
05/01/97	7.94
06/01/97	7.69
07/01/97	7.5
08/01/97	7.48
09/01/97	7.43
10/01/97	7.29
11/01/97	7.21
12/01/97	7.1
01/01/98	6.99
02/01/98	7.04
03/01/98	7.13
04/01/98	7.14
05/01/98	7.14
06/01/98	7
07/01/98	6.95
08/01/98	6.92
09/01/98	6.72
10/01/98	6.71
11/01/98	6.87
12/01/98	6.72
01/01/99	6.79
02/01/99	6.81
03/01/99	7.04
04/01/99	6.92
05/01/99	7.15
06/01/99	7.55
07/01/99	7.63
08/01/99	7.94
09/01/99	7.82
10/01/99	7.85
11/01/99	7.74
12/01/99	7.91