| Type | From | To |
|---|---|---|
| 1963-01-01 00:00 | 1964-12-31 23:54 | |
| 1965-07-01 00:00 | 1977-01-31 23:54 | |
| 1978-01-01 00:00 | 1978-04-30 23:54 | |
| 1978-10-01 00:00 | 1978-12-31 23:54 | |
| 1980-01-01 00:00 | 1988-01-31 23:54 | |
| 1988-05-01 00:00 | 1989-12-31 23:54 | |
| 1990-04-01 00:00 | 1994-02-28 23:54 |