user: Question: What was the highest attendance for the game where the record was 0-5 and the opponents scored more than 20 points?
Columns: ['Game', 'Date', 'Opponent', 'Result', '49ers points', 'Opponents', 'Record', 'Streak', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'text', 'text', 'real']
Sample row: [1.0, 'September 15', 'Minnesota Vikings', 'L', 20.0, 24.0, '0-1', 'L3 (from 1962 )', 30781.0]
SQL:

assistant: SELECT MAX("Attendance") FROM "Table" WHERE "Record" = '0-5' AND "Opponents" > 20.0;