user: Question: What is the smallest crowd at the Victoria Park Venue?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Richmond', '10.13 (73)', 'South Melbourne', '15.16 (106)', 'Punt Road Oval', 21000.0, '4 July 1959']
SQL:

assistant: SELECT MIN("Crowd") FROM "Table" WHERE "Venue" = 'Victoria Park';