statal vs unional

statal

adj
  • Relating to a state. 

  • Resulting from structural considerations as opposed to actions. 

  • Pertaining to a word or word form (such as a passive verb or a modifier) or other linguistic element that denotes a state rather than an action or process. 

unional

adj
  • Pertaining to a union. 

  • Pertaining to the European Union. 

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