user: Question: How many first downs were there when the attendance was 13196?
Columns: ['Game', 'Date', 'Opponent', 'Result', 'Packers points', 'Opponents', 'First Downs', 'Record', 'Streak', 'Venue', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 17', 'Detroit Lions', 'Loss', 7.0, 45.0, 11.0, '0–1', 'Lost 1', 'City Stadium', 22096.0]
SQL:

assistant: SELECT SUM("First Downs") FROM "Table" WHERE "Attendance" = 13196.0;