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

### Instruction:
How long was Volume:Issue 12:4-6 at the top?

### Inputs:
table_name: table, columns: ['Volume:Issue', 'Issue Date(s)', 'Weeks on Top', 'Song', 'Artist']

### Response:
SELECT COUNT Weeks on Top FROM table WHERE Volume:Issue = 12:4-6