A decade of prices at the pump (16 images)

Remember when gas prices moving over $2 a gallon looked disastrous? Then $3 seemed like the limit? Now with the national average cost of a gallon of gas at $3.99, let's take a look back at some golden days of gas prices.
Updated: May 6, 2011 at 3:21 PM
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The Shell gas station at the corner of Sixth and Harrison streets in San Francisco sells high test gas for over $4.50 a gallon on May 23, 2007. A bill introduced by Rep. Bart Stupak (D-MI) that would outlaw price gouging passed the House. (UPI Photo/Terry Schmitt)
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