Date
- 1989-12-21T08:00:00Z1
- 1990-05-01T07:00:00Z1
- 1990-08-11T07:00:00Z1
- 1990-12-20T08:00:00Z1
- 1991-05-01T07:00:00Z1
- 1991-08-10T07:00:00Z1
- 1991-12-19T08:00:00Z1
- 1992-05-01T07:00:00Z1
- 1992-08-08T07:00:00Z1
- 1992-12-17T08:00:00Z1
- 1993-05-01T07:00:00Z1
- 1993-08-07T07:00:00Z1
- 1993-12-16T08:00:00Z1
- 1994-05-01T07:00:00Z1
- 1994-08-13T07:00:00Z1
- 1994-12-22T08:00:00Z1
- 1995-05-01T07:00:00Z1
- 1995-08-12T07:00:00Z1
- 1995-12-21T08:00:00Z1
- 1996-05-01T07:00:00Z1