famine vs slim pickings

famine

noun

  • Severe shortage or lack of something. 

  • A period of extreme shortage of food in a region. 

  • Extreme shortage of food in a region. 

slim pickings

noun

  • A small amount, especially of money; paucity. 

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