Apayao is a landlocked province in the Philippines in the Cordillera Administrative Region in Luzon. Its capital town is Kabugao. Prior to 1995, Kalinga and Apayao comprised a single province named Kalinga-Apayao, which was partitioned to better service the needs of individual ethnic groups. Apayao is the least densely-populated province in the Philippines.
in dry palay, in metric tons per hectare, yearly