at large vs on the loose

at large

prep
  • On the loose; roaming freely; not confined. 

  • Having an electorate across multiple districts. 

  • In general; as a whole. 

on the loose

prep
  • Not incarcerated or in captivity; not under control. 

How often have the words at large and on the loose occurred in a corpus of books? (source: Google Ngram Viewer )