Chinaman vs Chink

Chinaman

noun
  • Synonym of Chinaperson, a Chinese person of either gender. 

  • A sailing ship of the 18th and 19th centuries engaged in the Old China Trade 

Chink

noun
  • A person of perceived Chinese ethnicity. 

adj
  • Chinese, or perceived to be Chinese. 

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