Contains registers 61 through 72
72B Register (12/31/1961)
71B Register (11/30/1961)
70B Register (10/31/1961)
69B Register (9/30/1961)
68B Register (8/31/1961)
67B Register (7/31/1961)
66B Register (6/30/1961)
65B Register (5/31/1961)
64B Register (4/30/1961)
63B Register (3/31/1961)
62B Register (2/28/1961)
61B Register (1/31/1961)
60B Register (1/3/1961)