According to a report yesterday from AAA, the national average price for gasoline dropped six cents on the week to $2.68, following a consistent downward trend since Memorial Day. The decline is unusual for this time of year. Pump prices usually trickle higher during the summer months due to increased demand. However, the latest Energy Information Administration (EIA) report reveals that total domestic gasoline inventories jumped a million bbl last week, helping to push pump prices lower. According to OPIS, strong production output and increased imports have helped gasoline storage levels grow consistently over the past four weeks.