Next Election: 2018 (at the latest)
Companies/Institutions: Ipsos; Lorien Consulting; Euromedia Research; SWG; ISPO Ricerche S.R.L.; IPR Marketing; Tecnè; EMG; Istituto Piepoli; Epoké Riserche; SpinCon; Demopolis-Istituto Nazionale di Ricerche; Datamonitor
(Total number of polls: 130)
Source: Chris Hanretty (http://chrishanretty.co.uk/blog/)
Note: Voting intention percentages correspond to monthly averages across all collected studies