Only 10% of the land is estimated to be cultivable. Millet, corn, pumpkins, sweet potatoes, pineapples, sugarcane, almonds, and many kinds of tropical vegetables and fruits are successfully grown, largely in homestead gardens. Coconut palms provide copra and coir, the most important exports after fish. Virtually all rice, a staple food for the population, must be imported. Breadfruit, mangoes, papayas, limes, bananas, pumpkins, watermelon, taro, and chili peppers are also valuable crops. As of 1999, small amounts of corn, millet, and sorghum were cultivated. Production in 1999 included 12,000 tons of coconuts and 2,000 tons of copra.