Radio adspend in the US reported its second double-digit percentage rise in as many months in October, according to the Radio Advertising Bureau.

Total spend jumped 13% year-on-year, following a 17% increase in September. The October boost was led by a 23% surge in national advertising, while local ad revenues climbed 10%.

For the year to date, total spend is up 5%.

Data sourced from: multiple sources; additional content by WARC staff