AAA Michigan says gas prices statewide have risen by about 12 cents per gallon in the past week.

The Dearborn-based auto club says late Sunday the average price for self-serve regular unleaded gasoline was about $2.57 per gallon. That's about 58 cents more than it was at the same point last year.

AAA says the lowest average price was about $2.47 per gallon in the Marquette area. The highest average was about $2.61 in the Jackson area.

The Detroit-area's average is about $2.55 per gallon, roughly 10 cents more than last week's average.

AAA Michigan surveys daily fuel prices at 2,800 gas stations across the state.

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