Mull vs Wight

Mull

name
  • An island, the second largest in the Inner Hebrides, in Argyll and Bute council area, Scotland. 

Wight

name
  • The Isle of Wight. 

  • A surname. 

  • A sea area comprising part of the English Channel, from the southern English coast down to Normandy 

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