Olive - Main countries of production (Year 2011 per FAOSTAT)

Olives are one of the most extensively cultivated fruit crops in the world.[92] In 2011 there were about 9.6 million hectares planted with olive trees, which is more than twice the amount of land devoted to apples, bananas or mangoes. Only coconut trees and oil palms command more space.[93] Cultivation area tripled from 2,600,000 to 7,950,000 hectares (6,400,000 to 19,600,000 acres) between 1960 and 1998 and reached a 10 million ha peak in 2008. The ten largest producing countries, according to the Food and Agriculture Organization, are all located in the Mediterranean region and produce 95% of the world's olives.

Reference 1: World, Spain, Italy, Greece, Turkey, Morocco, Syria, Algeria, Tunisia, Egypt and Portugal.

Reference 2: Production (in 1000s tonnes), Cultivated area (in 1000s hectares) and Yield (q/Ha).

Source: http://en.wikipedia.org/wiki/Olive#Pests.2C_diseases.2C_and_weather