Another double-digit drop in the cost of a gallon of gasoline in Massachusetts has brought prices to their lowest level in more than five years.

AAA Southern New England reports Monday that self-serve, regular fell 11 cents in the past week to an average of $2.46 per gallon. Prices were last this low in October 2009.

The current price is exactly a dollar below where it was at this time last year and 39 cents lower than a month ago.

The price in Massachusetts, however, is 17 cents above the national average.

AAA found self-serve, regular selling for as low as $2.23 per gallon in Massachusetts and as high as $2.89.

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