BOSTON (AP) — Massachusetts drivers have received an early Christmas gift with gas prices plunging for the fifth consecutive week just in time for holiday travel.

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AAA Southern New England reports Monday that self-serve, regular gasoline dropped six cents in the past week to an average of $3.22 per gallon.

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The Massachusetts price is a penny below the national average for the same grade, but still 22 cents more than at the same time last year.

AAA found self-serve, regular as low as $3.09 per gallon and as high as $3.43.

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Copyright 2011 The Associated Press.