Food and Agriculture Organization of the United Nations (FAO). 2012. FAOSTAT Online Statistical Service. Rome: FAO. Available online at: http://faostat.fao.org/.
Maize production is the amount of maize produced in a given country each calendar year, including both the quantities of the commodity sold in the market (marketed production) and the quantities consumed or used by the producers (auto-consumption). Harvesting losses, threshing losses, and unharvested portions of the crop are not included. Agricultural production data is obtained primarily from national governments through annually distributed FAO questionnaires.