The reason I would suggest that you have such a large radio listenership is not simply because you have a large aboriginal audience but because aboriginal radio is a lot more fun and engaging to listen to than private broadcast radio or, often, CBC.
Si vous avez de si bonnes cotes d'écoute radiophoniques, ce n'est pas simplement en raison de votre large audience autochtone, mais aussi parce que la radio autochtone est beaucoup plus amusante et dynamique que la radio privée et, bien souvent, que celle de la CBC.