Rush Limbaugh claimed on Thursday that his ratings have skyrocketed since the firestorm over his attacks on Sandra Fluke.

After calling Georgetown law student Fluke a "slut" and a "prostitute," Limbaugh became the target of national outrage and an advertiser boycott. President Obama even weighed in on the controversy.

As March dragged on, though, the story receded into the background. A Washington Post article on Wednesday was widely cited as evidence that the controversy has died down.

On Thursday, Limbaugh felt that it was time to take a victory lap.

"The advertisers who hung in here are going gangbusters, yes," he said. "I mean, that’s the simple truth. The only ones who got hurt are the ones who left."

Speaking about his ratings, he said, "The simple answer is that on the range of all 600 radio stations, our ratings are up anywhere from 10% to 60%, depending on the station.”

While it's true that the furor over Limbaugh has died down, his opponents insisted that he is not out of the woods yet.

"We were able to identify nine ‘long-term sponsors,” Media Matters campaign director Angelo Carusone told Deadline. “Six of these dropped Rush Limbaugh."

Moreover, some advertisers, such as Reputation.com, continue to pull out of the show.

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