The respondents preferred speeds of 8-50 Mbps. They comment that:
The response suggests there the public has become used to speed upgrades that come at almost no extra cost.
Asked how much extra they would pay to double their existing speeds, one third would nothing and the next third, less than £5.
The methodology is not explained, but it appears to be 2,400 self-selecting respondents from an on-line web survey.