chickpea vs common bean

chickpea

noun
  • A seed of this plant, often used as a food. 

  • An annual Asian plant (Cicer arietinum) in the pea family, widely cultivated for the edible seeds in its short inflated pods. 

common bean

noun
  • A bean of such a plant, varying in size, shape and especially color. 

  • An herbaceous annual plant (Phaseolus vulgaris), grown for its edible bean. 

How often have the words chickpea and common bean occurred in a corpus of books? (source: Google Ngram Viewer )