Chopper vs baggage

Chopper

noun
  • A British Rail Class 20 locomotive. 

baggage

noun
  • An army's portable equipment; its baggage train. 

  • Portable cases, large bags, and similar equipment for manually carrying, pushing, or pulling personal items while traveling 

  • Factors, especially psychological ones, which interfere with a person's ability to function effectively. 

  • Uncountable synonyms: luggage; gear; stuff 

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