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Mayor Michael Bloomberg recently gave high marks to the city’s restaurant letter-grade system, but when it comes to his own performance, most New Yorkers don't appear impressed.

A NY1/Marist Poll released Wednesday found his job approval rating at just 39 percent and down from his third-term high of 56 percent in April 2010. His approval rating was at 40 percent in March.

“Roughly one and a half years into his third term as mayor, it is not surprising that New Yorkers’ views of Bloomberg’s job performance are pretty much set,” Lee Miringoff, director of The Marist College Institute for Public Opinion, said in a statement.

The majority of respondents – 51 percent – believe New York City is headed in the wrong direction.

Hizzoner had setbacks in his third term with his handling of the blizzard response in December and his hiring of publishing exec Cathie Black as schools chancellor.

However, a recent Quinnipiac poll found the billionaire mayor's approval is on the upswing with a positive 45 percent approval rating.

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