Chinaman vs han

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 

han

noun
  • Sorrowful resentment, as a part of the Korean cultural identity. 

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