Every track in the top eight of the radio airplay chart saw an increase in audience this week except Sam Smith's Too Good At Goodbyes, which suffers a 9.90% dip in reach from 81.50m to 73.43m but continues atop the chart.

Its decline was entirely due to BBC Radio 2 more than halving support from 13 plays to six, with a resulting loss of more than 9m listeners. Radio 1 support was steadier, declining from 25 plays to 24, and the ...