user: Question: When was the attendance at a venue bigger than 35151?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Hawthorn', '20.12 (132)', 'South Melbourne', '15.12 (102)', 'Glenferrie Oval', 18294.0, '15 April 1967']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Crowd" > 35151.0;