user: Question: What is the highest numbered grid with a time or retired time of 52:52.1881?
Columns: ['Name', 'Team', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Garth Tander', 'Toll HSV Dealer Team', 27.0, '52:35.5753', 1.0]
SQL:

assistant: SELECT MAX("Grid") FROM "Table" WHERE "Time/Retired" = '52:52.1881';