04/01/71	4.57
05/01/71	5.06
06/01/71	5.38
07/01/71	5.75
08/01/71	5.74
09/01/71	5.69
10/01/71	5.42
11/01/71	4.84
12/01/71	4.66
01/01/72	4.03
02/01/72	3.81
03/01/72	4.1
04/01/72	4.55
05/01/72	4.45
06/01/72	4.6
07/01/72	4.83
08/01/72	4.75
09/01/72	5.07
10/01/72	5.21
11/01/72	5.18
12/01/72	5.4
01/01/73	5.77
02/01/73	6.17
03/01/73	6.76
04/01/73	7.13
05/01/73	7.26
06/01/73	8
07/01/73	9.26
08/01/73	10.26
09/01/73	10.31
10/01/73	9.14
11/01/73	9.11
12/01/73	9.28
01/01/74	8.86
02/01/74	8
03/01/74	8.64
04/01/74	9.92
05/01/74	10.82
06/01/74	11.18
07/01/74	11.93
08/01/74	11.79
09/01/74	11.36
10/01/74	9.55
11/01/74	8.95
12/01/74	9.18
01/01/75	7.39
02/01/75	6.36
03/01/75	6.06
04/01/75	6.11
05/01/75	5.7
06/01/75	5.67
07/01/75	6.32
08/01/75	6.59
09/01/75	6.79
10/01/75	6.35
11/01/75	5.78
12/01/75	5.88
01/01/76	5.16
02/01/76	5.13
03/01/76	5.25
04/01/76	5.09
05/01/76	5.44
06/01/76	5.83
07/01/76	5.54
08/01/76	5.36
09/01/76	5.33
10/01/76	5.1
11/01/76	4.98
12/01/76	4.66
01/01/77	4.72
02/01/77	4.76
03/01/77	4.75
04/01/77	4.75
05/01/77	5.26
06/01/77	5.42
07/01/77	5.39
08/01/77	5.76
09/01/77	6.1
10/01/77	6.51
11/01/77	6.54
12/01/77	6.61
01/01/78	6.75
02/01/78	6.76
03/01/78	6.75
04/01/78	6.82
05/01/78	7.06
06/01/78	7.59
07/01/78	7.85
08/01/78	7.83
09/01/78	8.39
10/01/78	8.98
11/01/78	10.14
12/01/78	10.37
01/01/79	10.25
02/01/79	9.95
03/01/79	9.9
04/01/79	9.85
05/01/79	9.95
06/01/79	9.76
07/01/79	9.87
08/01/79	10.42
09/01/79	11.63
10/01/79	13.23
11/01/79	13.57
12/01/79	13.24
01/01/80	13.04
02/01/80	13.78
03/01/80	16.81
04/01/80	15.78
05/01/80	9.49
06/01/80	8.27
07/01/80	8.41
08/01/80	9.57
09/01/80	10.97
10/01/80	12.52
11/01/80	15.18
12/01/80	18.07
01/01/81	16.58
02/01/81	15.49
03/01/81	13.94
04/01/81	14.56
05/01/81	17.56
06/01/81	16.32
07/01/81	17
08/01/81	17.23
09/01/81	16.09
10/01/81	14.85
11/01/81	12.16
12/01/81	12.12
01/01/82	13.09
02/01/82	14.53
03/01/82	13.8
04/01/82	14.06
05/01/82	13.42
06/01/82	13.96
07/01/82	12.94
08/01/82	10.15
09/01/82	10.36
10/01/82	9.2
11/01/82	8.69
12/01/82	8.51
01/01/83	8.17
02/01/83	8.34
03/01/83	8.52
04/01/83	8.53
05/01/83	8.33
06/01/83	9
07/01/83	9.25
08/01/83	9.54
09/01/83	9.24
10/01/83	8.99
11/01/83	9.1
12/01/83	9.53
01/01/84	9.2
02/01/84	9.32
03/01/84	9.83
04/01/84	10.18
05/01/84	10.65
06/01/84	10.98
07/01/84	11.19
08/01/84	11.18
09/01/84	11.04
10/01/84	10.12
11/01/84	9.03
12/01/84	8.44
01/01/85	8.03
02/01/85	8.54
03/01/85	8.9
04/01/85	8.37
05/01/85	7.83
06/01/85	7.35
07/01/85	7.56
08/01/85	7.72
09/01/85	7.83
10/01/85	7.8
11/01/85	7.77
12/01/85	7.75
01/01/86	7.71
02/01/86	7.63
03/01/86	7.2
04/01/86	6.6
05/01/86	6.62
06/01/86	6.71
07/01/86	6.33
08/01/86	5.92
09/01/86	5.68
10/01/86	5.68
11/01/86	5.76
12/01/86	6.1
01/01/87	5.84
02/01/87	6.05
03/01/87	6.16
04/01/87	6.45
05/01/87	6.93
06/01/87	6.92
07/01/87	6.65
08/01/87	6.71
09/01/87	7.37
10/01/87	7.89
11/01/87	7.17
12/01/87	7.61
01/01/88	6.87
02/01/88	6.58
03/01/88	6.62
04/01/88	6.86
05/01/88	7.19
06/01/88	7.49
07/01/88	7.82
08/01/88	8.26
09/01/88	8.17
10/01/88	8.24
11/01/88	8.66
12/01/88	9.11
01/01/89	9.04
02/01/89	9.37
03/01/89	9.95
04/01/89	9.81
05/01/89	9.47
06/01/89	9.11
07/01/89	8.68
08/01/89	8.57
09/01/89	8.7
10/01/89	8.53
11/01/89	8.35
12/01/89	8.29
01/01/90	8.1
02/01/90	8.14
03/01/90	8.28
04/01/90	8.3
05/01/90	8.25
06/01/90	8.14
07/01/90	7.99
08/01/90	7.88
09/01/90	7.96
10/01/90	7.98
11/01/90	7.91
12/01/90	7.8
01/01/91	7.1
02/01/91	6.49
03/01/91	6.41
04/01/91	6.07
05/01/91	5.92
06/01/91	6.11
07/01/91	6.05
08/01/91	5.72
09/01/91	5.57
10/01/91	5.35
11/01/91	4.98
12/01/91	4.61
01/01/92	4.07
02/01/92	4.11
03/01/92	4.3
04/01/92	4.04
05/01/92	3.88
06/01/92	3.92
07/01/92	3.44
08/01/92	3.38
09/01/92	3.24
10/01/92	3.33
11/01/92	3.66
12/01/92	3.67
01/01/93	3.25
02/01/93	3.18
03/01/93	3.17
04/01/93	3.14
05/01/93	3.14
06/01/93	3.25
07/01/93	3.2
08/01/93	3.18
09/01/93	3.16
10/01/93	3.26
11/01/93	3.4
12/01/93	3.36
01/01/94	3.19
02/01/94	3.49
03/01/94	3.85
04/01/94	4.05
05/01/94	4.57
06/01/94	4.57
07/01/94	4.75
08/01/94	4.84
09/01/94	5.02
10/01/94	5.51
11/01/94	5.81
12/01/94	6.26
01/01/95	6.22
02/01/95	6.15
03/01/95	6.15
04/01/95	6.12
05/01/95	6.06
06/01/95	5.94
07/01/95	5.79
08/01/95	5.82
09/01/95	5.74
10/01/95	5.82
11/01/95	5.74
12/01/95	5.64
01/01/96	5.4
02/01/96	5.15
03/01/96	5.31
04/01/96	5.39
05/01/96	5.39
06/01/96	5.49
07/01/96	5.53
08/01/96	5.42
09/01/96	5.52
10/01/96	5.43
11/01/96	5.41
12/01/96	5.51
01/01/97	5.45
02/01/97	5.4
03/01/97	5.56
04/01/97	5.71
05/01/97	5.69
06/01/97	5.65
07/01/97	5.57
08/01/97	5.56
09/01/97	5.48
10/01/97	5.48
11/01/97	5.59
12/01/97	5.71
01/01/98	5.44
02/01/98	5.44
03/01/98	5.49
04/01/98	5.48
05/01/98	5.49
06/01/98	5.5
07/01/98	5.5
08/01/98	5.5
09/01/98	5.37
10/01/98	5.08
11/01/98	5.14
12/01/98	5.12
01/01/99	4.78
02/01/99	4.8
03/01/99	4.82
04/01/99	4.78
05/01/99	4.8
06/01/99	4.98
07/01/99	5.08
08/01/99	5.23
09/01/99	5.29
10/01/99	5.3
11/01/99	5.82
12/01/99	5.91