Gas prices are inching up after weeks of decline. Florida pump prices averaged $2.53 per gallon Monday, up four cents over the week. Tampa Bay gas rose to $2.50 per gallon, up six cents over the week. National prices hit $2.55 per gallon, according to AAA The Auto Club Group."There are a few of factors that gave gas prices a boost, but this time it wasn’t crude oil," Mark Jenkins, spokesperson for AAA, said. "Gasoline supplies took a sharp dip last week, as exports rose and refineries began to switch from summer to winter blend gasoline. In addition, demand in the southeast — especially in Florida — is strong, as Americans hit the road for spring break."Also contributing to the price increase was the wholesale price of gasoline last week, AAA said.Contact this reporter at [email protected] or (727) 892-2249. Follow @malenacarollo.