skillage vs smartness

skillage

noun
  • The state of being highly skilled, the state of being skillful. 

  • The differentiating, or skilling, of call distribution based on an individual's skill level, expertise, or training. 

smartness

noun
  • The state or quality of being smart, intelligence. 

  • The result or product of being smart. 

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