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The average price of a gallon of gasoline is at its lowest level in the U.S. since 2011, according to AAA.
The auto group said on Wednesday that the current average of $3.17 is roughly 17 cents per gallon cheaper than a year ago.
Additionally, AAA said, gas prices are "falling at the fastest rate since October 2012," and prices have dropped 51 cents per gallon since July of this year.
One-third of all gas stations in the U.S. are selling gas for less than $3, and 10 states are currently charging less than $3 per gallon.
That means drivers are spending roughly $5 to $15 less to fill up their tanks than they were in early July.