Average retail gasoline prices in Indiana have fallen 11.0 cents per gallon in the past week, averaging $2.43/g yesterday according to GasBuddy's daily survey of 3,271 gas outlets in Indiana. That compares with the national average that has fallen 3.0 cents per gallon in the last week to $2.73/g according to gasoline price website GasBuddy.com. Prices yesterday were 96.4 cents per gallon lower than the same day one year ago and are 37.9 cents per gallon lower than a month ago. Gas prices are slightly lower this week compared to last week in Northern Indiana. Pumps in Plymouth are charging $2.32 a gallon, which is the lowest in the area. Elsewhere a gallon of regular unleaded in Goshen averages $2.37, Columbia City $2.38, Warsaw $2.40 and Wabash $2.52. The best prices for gasoline are found in Kokomo, where most stations surveyed at www.indianagasprices.com are charging $1.98 a gallon for regular unleaded.