oyinbo vs white man

oyinbo

noun
  • A Caucasian person. 

white man

noun
  • A Caucasian man; a man of northern European descent or having that appearance. 

  • Used other than figuratively or idiomatically: see white, man. 

  • white people collectively; white culture. 

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