in difficulty vs in trouble

in difficulty

prep

  • experiencing problems 

in trouble

prep

  • Suffering difficulties. 

  • Pregnant, unmarried, and not likely to be married before giving birth. 

  • Liable to be punished for misbehavior; in disgrace. 

adj

  • in a difficult situation 

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