74 million: Number of U.S. households with grills

17 million: Number of grills manufactured in 2006

65: Percentage of grills using liquid propane

44: Percentage of grill owners who use grills 1 or 2 times a week between May and August

87: Percentage who grill hamburgers

Source: Hearth, Patio and Barbecue Association, www.hpba.org