Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Season | Grand FinalDate | WinningTeam | Score | LosingTeam | Location | GF Attendance | Clive Churchill Medal |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1988.0 | 11 September 1988 | Canterbury Bulldogs (6) | 24-12 | Balmain Tigers | Sydney Football Stadium , Sydney (1) | 40000.0 | Paul Dunn |
| 1989.0 | 24 September 1989 | Canberra Raiders (1) | 19-14 (aet) | Balmain Tigers | Sydney Football Stadium , Sydney (2) | 40500.0 | Bradley Clyde |
| 1990.0 | 23 September 1990 | Canberra Raiders (2) | 18-14 | Penrith Panthers | Sydney Football Stadium , Sydney (3) | 41535.0 | Ricky Stuart |
| 1991.0 | 22 September 1991 | Penrith Panthers (1) | 19-12 | Canberra Raiders | Sydney Football Stadium , Sydney (4) | 41815.0 | Bradley Clyde |
| 1992.0 | 27 September 1992 | Brisbane Broncos (1) | 28-8 | St. George Dragons | Sydney Football Stadium , Sydney (5) | 41560.0 | Allan Langer |
| 1993.0 | 26 September 1993 | Brisbane Broncos (2) | 14-6 | St. George Dragons | Sydney Football Stadium , Sydney (6) | 42329.0 | Brad Mackay |
| 1994.0 | 25 September 1994 | Canberra Raiders (3) | 36-12 | Canterbury Bulldogs | Sydney Football Stadium , Sydney (7) | 42234.0 | David Furner |
Question:
I want the Grand Final Date for season 1988
Answer:
11 September 1988