It's been a good week at the gas pump. Average retail gasoline prices in Indiana have fallen 12.1 cents per gallon in the past week, averaging $2.67/g yesterday according to GasBuddy's daily survey of 3,271 gas outlets in Indiana. That compares with the national average that has not moved in the last week to $2.76/g, according to www.GasBuddy.com. Prices yesterday were 83.3 cents per gallon lower than the same day one year ago and are 26.7 cents per gallon lower than a month ago.