Ben Frow mentions BB14's ratings in this press release about the channel's return to original drama:
Ben Frow, Director of Programmes Channel 5 said “Along with our new drama we’ve got other new commissions that I think keep the channel fresh and exciting. Big Brother this year has performed better than ever before and these new shows – and the many more we are also working on add texture and diversity to the schedule and will play nicely alongside the rest of the schedule”
http://about.channel5.com/node/1852