ICM is doing an omnibus question regularly now on the precise referendum question.

HERE is a PDF of their latest poll of 2,000 people conducted over 21-23 August.

Headline figures: Yes 44 (-4), No 37 (+3), Don’t know 19. This change is probably normal variation in a random sample.

In this poll, Scotland’s figures are closer to the average: 49 – 30.

The strong lead for YES among ABs remains: 55(-5) – 30(+5).