bell pepper vs tabasco pepper

bell pepper

noun
  • Capsicum annuum, an edible spicy-sweet fruit, originating in the New World. 

tabasco pepper

noun
  • A variety of chili pepper having a conical shape and a bitter and burning taste, Capsicum frutescens variety tabasco. 

How often have the words bell pepper and tabasco pepper occurred in a corpus of books? (source: Google Ngram Viewer )