Three in four voters (72%) say they’ve seen TV campaign ads from political parties this election, suggesting paying up for TV ads remains one of the best ways for politicians to reach the electorate.

The figure comes from this week’s Essential report, which asked voters which types of contact they remembered having with political parties during the campaign.

Material sent to letterboxes was the next most common form of contact (70%), followed by receiving campaign emails (26%), and phone calls (21%).

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Full figures (click to enlarge)

Around 7% of voters recall being door-knocked by a political party this campaign — a slightly higher figure than the 6% who say they’ve been door-knocked by another group (like a union) about the election.

The poll didn’t ask how many respondents recalled seeing election advertising on social media. From Thursday, ads in broadcast media are banned in the immediate lead-up to the election. So you’d expect the parties to pour even more money into digital campaigns.