How many station 2011- had volumes 11580 2008-?
Station Name 2002–03 2004–05 2005–06 2006–07 2007–08 2008–09 2009–10 2010–11 2011–12
text real real real real real real real real real
1-1470706-1
Devonport 18795 16202 18573 19655 17450 21652 21674 27006 27756
Dockyard 4070 5088 4895 5335 4924 5280 5524 5406 7716
Keyham 8957 6374 7594 7976 5050 5648 5016 6330 7708
St Budeaux Victoria Road 5451 5818 6146 5264 5193 5678 7026 6942 7780
Bere Ferrers 17808 12862 11459 10824 10824 11580 12606 14374 15020
Bere Alston 37944 29552 27263 26866 28936 32454 36272 41666 44792
Calstock 25739 24024 21123 23476 26825 31168 33368 33198 32456
Gunnislake 39009 37190 43885 43676 48747 49070 51424 50218 52116
table_1470706_1
SELECT COUNT 2011–12 FROM table WHERE 2008–09 = 11580
11580