These projections have been revised downwards from those released last year. Overall, BIA/Kelsey notes that radio revenue was mostly flat last year, a result consistent with the Radio Advertising Bureau’s calculations. Kantar recently pegged radio’s revenues as being down by 5.6% last year, though it cited a “reduction in the number of monitored networks” in its release. Source: BIA/Kelsey
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![US Radio Ad Revenues, 2006-2018 [CHART] Chart - US Radio Ad Revenues, 2006-2018](https://www.marketingcharts.com/wp/wp-content/uploads/2014/04/BIAKelsey-Radio-Indus-Advertising-Revenue-2006-2018-Apr2014.png)