White House press secretary Jay Carney on Wednesday defended the Obamacare rollout, saying the administration "expected" there would be glitches and has been "very transparent."

Carney was asked about a report in the Washington Post that the administration ignored warnings beforehand that the websites offering consumers insurance plans would not be ready.

"Everyone was aware, and we told you that there would be glitches and there would be problems," he told reporters. "And we have told you and been very transparent about the fact that the interest has been even greater than we expected, which is a high-class problem."

The insurance exchanges have experienced a number of problems since their launch on Oct. 1, with many consumers unable to register or compare plans.

Carney said the problems were caused by the "high volume" of visitors to the sites.

"Every day, the problem — the situation improves, and more and more Americans, the millions who have demonstrated their interest in finding out about the opportunities for health insurance through the marketplaces, are finding that experience easier," he said.

Critics have also pressed the administration to provide figures on how many consumers have actually signed up for plans. The White House, though, has said the enrollment figures will be released on a monthly basis, as officials collect figures for online and paper applications.

Carney added that he did not know if President Obama had personally tried to sign up for the health exchanges online. But he said that Obama was aware of the problems and been briefed on efforts to have the sites running properly.

"He knows, in great detail, how the website works, what the issues are, the number of people who are — across the country who have been going to the website and exploring the options available to them, and he has made clear to his team that he wants them to take every measure necessary to improve the consumer experience," Carney said.