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

### Instruction:
How many stations in 2011-12 had volume of 11580 in 2008-09?

### Inputs:
table_name: table, columns: ['Station Name', '2002–03', '2004–05', '2005–06', '2006–07', '2007–08', '2008–09', '2009–10', '2010–11', '2011–12']

### Response:
SELECT COUNT 2011–12 FROM table WHERE 2008–09 = 11580