opulent vs rolling in it

opulent

adj
  • Rich, sumptuous and extravagant. 

  • Luxuriant, and ostentatiously magnificent. 

rolling in it

phrase
  • Used other than figuratively or idiomatically: see roll, in, it. 

  • Having an abundance of money; rich, very prosperous. 

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