Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the average attendance when the rank is 5?

### Inputs:
table_name: table, columns: ['Season', 'Division', 'Rank', 'Avg.Att.', 'Top Goalscorer', 'Goals']

### Response:
SELECT Avg.Att. FROM table WHERE Rank = 5