break the bank vs pan out

break the bank

verb
  • To exhaust one's financial resources. 

  • At a casino etc., to win all the money that is available to be paid. 

pan out

verb
  • To proceed according to plan; to result or end up. 

  • To separate and recover (valuable minerals) by swirling dirt or crushed rock in a pan of water, in the manner of a traditional prospector seeking gold. 

How often have the words break the bank and pan out occurred in a corpus of books? (source: Google Ngram Viewer )