balance (out) vs square up

balance (out)

square up

verb
  • to face (someone) in a contest 

  • to get ready for a fight 

  • to adopt a fighting stance 

  • To mill (blocks, inserts, etc) into precisely square condition. 

  • to pay back money that is owed 

How often have the words balance (out) and square up occurred in a corpus of books? (source: Google Ngram Viewer )