CAMARILLO, Calif. (AP) — The average U.S. price of regular-grade gasoline jumped 5 cents a gallon over the past two weeks to $2.50. Industry analyst Trilby Lundberg of the Lundberg Survey said Sunday the increase was caused by a continuing rise in crude oil prices since November. The price at the pump is 3 cents less than it was a year ago. The highest average price in the nation is $3.49 a gallon in San Francisco. The lowest average is $2.08 in Houston. The average price of diesel went up 5 cents over the same period to $2.75.