Figures are sourced from audience measurement body Rajar.
(D) Digital-only stations
(Q) Based on quarterly survey period
(H) Based on six-monthly survey period
London's commercial radio stations have taken a pummelling to their weekly audience figures, with the big four all shedding listeners year on year and Heart's breakfast show sliding to sixth place.
Commercial radio tightened the gap between it and the BBC, according to the latest Rajar audience figures.
Heart has been keeping a tight grip on its nine million weekly listeners, according to the latest Rajar radio audience figures.