Starbucks said:
And again if you state that Arbitron doesn't care about 12 plus or 55 Plus, that's why the many stations and radio is declining. And the numbers show it.
Again you don't seem to understand that overall ratings don't count except for boasting. Commercial stations are in the business of providing a certain product to customers. The customers are the advertisers and the product is a particular population of people.
Advertisers couldn't care less if KGO is #1 overall if the audience isn't one that will buy its products.
If the advertiser is puts on hip-hop shows, they're going to advertise on KMEL, not on KGO. If the advertiser sells baby care products, they'll advertise on a station reaching women, such as a KOIT. If they're selling sportcars they'll advertise on a station reaching more men, such as a KNBR. If the advertiser is a mattress company they're not going to be interested in spending their money to reach teenagers. Thus, they're going to advertise on a KGO, not on a KMEL.