Ankstesnės apklausos

2009-10-06 – 2009-11-08

2009-09-01 – 2009-10-05

2009-06-08 – 2009-08-31

2009-04-30 – 2009-06-07

2009-03-25 – 2009-04-29

2009-02-17 – 2009-03-25

2009-01-16 – 2009-02-17

2008-11 – 2009-01-15