abundant vs at a premium

abundant

adj
  • Being an abundant number, i.e. less than the sum of all of its divisors except itself. 

  • Fully sufficient; found in copious supply; in great quantity; overflowing. 

  • Richly supplied; wealthy; possessing in great quantity. 

at a premium

prep
  • At a high, or higher than expected, price. 

  • Scarce, in short supply. 

  • Above par value. 

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