almanac vs tome

almanac

noun
  • A handbook, typically published annually, containing information on a particular subject 

  • A book or table listing nautical, astronomical, astrological or other events for the year; sometimes, but not essentially, containing historical and statistical information. 

  • A GPS signal consisting of coarse orbit and status information for each satellite in the constellation. 

tome

noun
  • A large or scholarly book. 

  • One in a series of volumes. 

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