user: Question: How many people in total have attended games at Kardinia Park?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['North Melbourne', '7.6 (48)', 'Richmond', '16.10 (106)', 'Arden Street Oval', 8837.0, '15 August 1970']
SQL:

assistant: SELECT SUM("Crowd") FROM "Table" WHERE "Venue" = 'Kardinia Park';