oakwood vs white oak

oakwood

noun
  • A wood populated with oak trees. 

white oak

noun
  • The wood of such trees. 

  • An oak tree with rounded leaf lobes and relatively pale wood, native to eastern North America, Quercus alba. 

  • A similar oak tree in a subgenus, Quercus subg. Quercus, especially section Quercus. 

  • Lagunaria patersonia (Queensland white oak). 

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