gammadion vs manji

gammadion

noun
  • A fylfot. 

manji

noun
  • A captain or skipper of a boat. 

  • A type of raised bed similar to a cot from South Asia. 

  • A left-facing Japanese swastika, primarily used in Buddhism. 

  • A Sikh religious administrative unit. 

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