2/14/68
4/6/69
6/7/69
7/11,12/69
11/8/69
12/5/69
12/11/69
12/19/69
1/10/70
1/16/70
2/5/70
2/11/70
2/13/70
2/14/70
3/20/70
4/3/70
4/12/70?
5/2/70
5/6/70
5/15/70
5/24/70
6/24/70
7/10/70
7/11/70
8/5/70
4/26/71
9/28/72
6/9/73
12/2/73
5/8/77
1/7/78
1/8/78
1/10/78
1/11/78
1/13/78
1/14/78
1/15/78
1/17/78
1/18/78
1/22/78
1/30/78
1/31/78
2/1/78
2/3/78
4/6/78
4/7/78
4/8/78
4/10/78
4/11/78
4/12/78
4/15/78
4/16/78
4/19/78
4/21/78
4/22/78
4/24/78
5/5/78
5/6/78
5/7/78
5/9/78
5/10/78
5/11/78
5/13/78
5/14/78
5/16/78
5/17/78
6/4/78
6/25/78
7/1/78
7/3/78
7/7/78
8/30/78
8/31/78
9/2/78
9/14/78
9/16/78
10/18/78
10/20/78
10/21/78
11/14/78
11/16/78
11/18/78
11/20/78
11/23/78
11/24/78
12/13/78
12/15/78
12/19/78
12/28/78
12/30/78
12/31/78
1/5/79
1/7/79
1/8/79
1/10/79
1/11/79
1/12/79
1/14/79
1/15/79
1/17/79
1/18/79
1/20/79
2/3/79
2/4/79
2/9/79
2/10/79
2/11/79
2/17/79