This year’s Independence Day cookouts will have consumers paying more for their favorite backyard food fare. They will pay $69.68 for their summer cookout foods, including cheeseburgers, pork chops, chicken breasts, homemade potato salad, strawberries and ice cream, based on a new American Farm Bureau Federation (AFBF) marketbasket survey. The average cost of a summer cookout for 10 people is $69.68, which …