Agriculture, forestry and fishing employ 1.2% of the state's population and contribute 8.45% to its GDP. Colima produces about half of Mexico's lime crop, and is second in the production of coconut meat and tuna . The principal markets for Colima's agricultural products—especially produce—are Guadalajara, Mexico City, Puebla and Monterrey. During the dry season, there is migration from the rural areas into the urban ones as most agricultural work takes place during the rainy season. Most farm work consists of the harvesting of fruit. The agricultural production supports an agro-industry that attracts workers from neighboring Jalisco and Michoacán. Most of Colima's agriculture is based on perennial plants, such as fruit trees, producing limes, coconuts, mangos and bananas, accounting for ninety percent of the volume of agricultural production and 79% of its value. Colima is the primary producer of limes in Mexico. Other important crops include corn, rice, melons, sorghum, chili peppers, coffee, tomatoes and tomatillos.