"In three Canadian provinces, weekly music radio listeners fell dramatically: British Columbia (from 68 per cent to 59 per cent), Alberta (from 65 per cent to 58 per cent) and Ontario (from 72 per cent to 58 per cent.)"

Survey: How we listen to music in Canada

I'm not entirely convinced of the numbers given the sample size, but they certainly show how radio's power is continually diminishing.