Date
- 1979-05-01T07:00:00Z1
- 1979-07-21T07:00:00Z1
- 1979-08-11T07:00:00Z1
- 1979-09-07T07:00:00Z1
- 1979-10-01T07:00:00Z1
- 1979-12-20T08:00:00Z1
- 1980-01-26T08:00:00Z1
- 1980-04-01T08:00:00Z1
- 1980-05-01T07:00:00Z1
- 1980-05-08T07:00:00Z1
- 1980-08-09T07:00:00Z1
- 1980-09-12T07:00:00Z1
- 1980-10-01T07:00:00Z1
- 1980-12-18T08:00:00Z1
- 1981-01-16T08:00:00Z1
- 1981-04-01T08:00:00Z1
- 1981-04-09T08:00:00Z1
- 1981-05-01T07:00:00Z1
- 1981-07-17T07:00:00Z1
- 1981-08-08T07:00:00Z1