dead heat vs even steven

dead heat

noun
  • a close race or contest in which no winner is apparent 

even steven

adj
  • being equal, as in score or account; tied 

  • exactly even, equal 

  • having nothing due, or no balance of debt on either side 

adv
  • evenly divided 

  • equally, evenly 

noun
  • harmony, balance; parity 

  • equity; equilibrium 

How often have the words dead heat and even steven occurred in a corpus of books? (source: Google Ngram Viewer )