The following table gives the average of 10 monthly opinion polls (9 before December 2008 - Synovate, Opinion, Gallup, Sentio BT, Sentio DN, Norstat NRK, Norstat VL, Response, In fact and, from December 2008, Norfakta).
Järgnev tabel annab 10 igakuise arvamusküsitluse keskmise tulemuse (9 enne detsembrit 2008 - Synovate, Opinion, Gallup, Sentio BT, Sentio DN, Norstat NRK, Norstat VL, Respons, Infact ja alates detsembrist 2008, Norfakta).