user: Question: What is the average attendance when the rank is 5?
Columns: ['Season', 'Division', 'Rank', 'Avg.Att.', 'Top Goalscorer', 'Goals']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['1945–46', 'OL', '6', 'unknown', 'Holzmüller', 17.0]
SQL:

assistant: SELECT "Avg.Att." FROM "Table" WHERE "Rank" = '5';