Date
- 1958-06-01T07:00:00Z1
- 1960-06-01T07:00:00Z1
- 1961-01-01T08:00:00Z1
- 1961-06-01T07:00:00Z1
- 1962-01-01T08:00:00Z1
- 1962-06-01T07:00:00Z1
- 1964-05-01T07:00:00Z1
- 1965-01-01T08:00:00Z1
- 1966-05-01T07:00:00Z1
- 1967-05-01T07:00:00Z1
- 1968-04-12T08:00:00Z1
- 1968-04-19T08:00:00Z1
- 1968-05-01T07:00:00Z1
- 1968-07-26T07:00:00Z1
- 1968-08-30T07:00:00Z1
- 1968-09-06T07:00:00Z1
- 1968-09-13T07:00:00Z1
- 1968-09-20T07:00:00Z1
- 1968-09-27T07:00:00Z1
- 1968-10-04T07:00:00Z1