user: Question: What was the smallest crowd for the Richmond home team?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Fitzroy', '17.16 (118)', 'South Melbourne', '22.11 (143)', 'Brunswick Street Oval', 10169.0, '11 August 1962']
SQL:

assistant: SELECT MIN("Crowd") FROM "Table" WHERE "Home team" = 'Richmond';