DEARBORN, MI (AP)-- AAA Michigan says gas prices statewide have decreased by about 13 cents in the past week.
The Dearborn-based auto club says the average price for self-serve regular unleaded gasoline was about $1.74 per gallon on Sunday. That's about 19 cents less than it was at the same point last year.
The lowest average price was about $1.63 per gallon in the Lansing area, while the highest average was about $1.85 per gallon in the Marquette area.
The last time the statewide average gas price dipped below $1.75 was in January 2009.
AAA Michigan surveys daily fuel prices at 2,800 gas stations across the state.