The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour.
The "Lead" columns on the right shows the percentage-point difference between the parties with the highest percentages in a poll.
The table below lists opinion polling on the victory preferences for each party in the event of a general election taking place.
The table below lists opinion polling on the perceived likelihood of victory for each party in the event of a general election taking place.
The table below lists opinion polling on leader preferences to become prime minister.