Six cents-a-gallon. That's how much gasoline prices have dropped in Shreveport/Bossier in the past week. At this time last Monday we were paying -- on average -- $3.47 for a gallon of regular. Today, AAA's Daily Fuel Gauge Report says we're paying $3.41. Statewide, the average is $3.42. Nationally, it's $3.59. A year ago today, the national average was $2.73.