CONCORD, N.H. (AP) — Gas prices haven't changed much in northern New England over the last week.

GasBuddy shows that the average retail price went up less than half a penny in Maine, to $2.22 a gallon. Prices went down a penny in Vermont to $2.21, and about a half-cent in New Hampshire, to $2.12.

The national average of $2.20 has gone up $2.7 cents in the last week. It stands 9.3 cents per gallon lower than a year ago.

[STORY BY: THE ASSOCIATED PRESS]

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