Gas prices in Florida declined nearly six cents last week. The state average of $2.80 per gallon is the lowest daily price since early May, according to the Triple A Auto Club. Since peaking at $2.92 on May 25th, gas prices have declined 16 consecutive days for 11 cents, although Motorists are still paying 46 cents a gallon more than this time last year. Mark Jenkins, spokesman for Triple A, said gas prices could drop another five cents this week, unless the market suddenly shifts