| Type | From | To |
|---|---|---|
| 1958-06-01 00:00 | 1959-05-31 23:54 | |
| 1959-12-01 00:00 | 1962-09-30 23:54 | |
| 1963-01-01 00:00 | 1970-12-31 23:54 | |
| 1971-10-01 00:00 | 1973-08-31 23:54 | |
| 1974-01-01 00:00 | 1983-04-30 23:54 | |
| 1983-11-01 00:00 | 1983-11-30 23:54 | |
| 1985-01-01 00:00 | 1985-06-30 23:54 |