ang moh vs roundeye

ang moh

noun
  • A white person, especially one perceived as a foreigner rather than a local inhabitant. 

roundeye

noun
  • A Westerner (from the purported point of view of an Asian or other person with naturally narrower eyes). 

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