Wodehousian vs idiosyncratic

Wodehousian

adj
  • Of or pertaining to P. G. Wodehouse (1881–1975), English writer and humorist known for his eccentric half-witted characters. 

idiosyncratic

adj
  • Peculiar to a specific individual; eccentric. 

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