SAN FRANCISCO, CA - MARCH 27:  Limes priced at $.99 each are displayed at Cal-Mart Grocery on March 27, 2014 in San Francisco, California. Food prices are on the rise and expected to keep edging up throughout the year as the drought and other factors have impacted the availability and cost of groceries like coffee, milk, limes and pork.  (Photo by Justin Sullivan/Getty Images)