paddy vs the doldrums

paddy

noun
  • Rough or unhusked rice, either before it is milled or as a crop to be harvested. 

  • A fit of temper; a tantrum. 

  • A labourer's assistant or workmate. 

  • A drill used in boring wells, with cutters that expand on pressure. 

  • A paddy field, a rice paddy; an irrigated or flooded field where rice is grown. 

  • A white person. 

the doldrums

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