In total, industrial production accounted for almost 37 percent of the Cuban GDP, or US$6.9 billion, and employs 24 percent of the population, or 2,671,440 people, in 1996. Cuban industry encompasses sugar, petroleum, and food processing; the manufacturing of textiles, chemicals, wood, paper and tobacco products, cement, fertilizers, and agricultural machinery; and the extraction of metals. Only in mining and sugar processing does Cuba contribute a noteworthy portion of the world's production.