cat burglar vs drummer

cat burglar

noun
  • A particularly stealthy burglar, especially one who gains undetected entry through the use of agility. 

drummer

noun
  • A housebreaker. 

  • One who plays the drums. 

  • A drumstick (the lower part of a chicken or turkey leg). 

  • Any of various fish of the family Kyphosidae, which make a drumming sound. 

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