DEARBORN (CBS Detroit/AP) — Gas prices across the state have reached an all time high.  AAA Michigan says average gas prices statewide have risen about 9 cents in the past week.

The Dearborn-based auto club said late Sunday that the average price for self-serve regular unleaded gasoline was about $2.88 per gallon. Prices are about 34 cents more than at the same point last year and AAA says they’re at the highest point since 2015.

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Michigan’s lowest average price was about $2.74 per gallon in the Marquette area. The highest was about $2.92 per gallon in the Jackson area.

The Detroit-area’s average daily gas price was about $2.86 per gallon, up about 8 cents from last week. Metro Detroit’s average is about 37 cents more than this same time last year.

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

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