The audience expressed as a percentage of the total
population.
Share
The percentage of those listening to radio in the Metro
who are listening to a particular radio station.
Cume
Persons: The total number of different persons who tune
to a radio station during the course of a daypart for at
least five minutes.
Rating: The Cume Persons audience expressed as a
percentage of all persons estimated to be in the
specified demographic group.
Average Quarter-Hour
Persons: The average number of persons listening to a
particular station for at least five minutes during a
15-minute period.
Rating: The average Quarter-Hour Persons estimate expressed
as a percentage of the population being measured. This
estimate is printed for the MSA and DMA. It can also be
computed for the TSA.