Temporal Info: 
U.S. Dollars/Kg
FAO 2018

Food and Agriculture Organization (FAO). 2014. Global Information and Early Warning System (GIEWS). Available online at http://www.fao.org/giews/food-prices/tool/public/#/dataset/international

This data represents the best available monthly price information for each country expressed in U.S. dollars per Kg. The price data comes from a combination of FAO Global Information and Early Warning System (GIEWS) and USAID Famine Early Warning System Network (FEWS) sources.

The FAO data comes from GIEWS. Note that seasonal patterns such as harvest periods may account for some of the variations in prices. Notes about variations in each commodity and location are given below, with source information following each country:

Brazil; National Average; Yellow Maize; wholesale.
Chad; Retail; N'Djamena.
Colombia; Bogota; Yellow Maize; wholesale.
Costa Rica; National Average; Maize (White); Retail.
DR Congo: Bunia: Maize; retail.
Dominican Republic; Santo Domingo; Retail.
El Salvador: San Salvador; Maize (white), wholesale.
Ethiopia: Addis Ababa: Maize; wholesale.
Guatemala: Guatemala City, Maize (white); wholesale.
Haiti: Port-au-Prince: Maize meal (imported); Retail.
Honduras: San Pedro Sula, maize (white), wholesale
Kenya; Nairobi: Maize; wholesale.
Malawi; Lilongwe: Yellow Maize; retail.
Mozambique; Maputo: White Maize; retail
Nicaragua; Managua: White Maize; retail
Niger: Niamey, Maize, retail.
Nigeria; Kano: Maize; Dawanau market; wholesale
Panama; Panama City, Maize; retail.
Peru; National Average: Yellow Maize; wholesale.
Tanzania; Dar es Salaam: Maize; wholesale.
Uganda: Kampala; Maize; wholesale.