secret ballot vs tally

secret ballot

noun
  • The voting system involving ballots available only at official polling places, prepared at public expense, containing the names of all candidates, and marked in secret at the polling places. 

tally

intj
  • Target sighted. 

noun
  • A ribbon on a sailor's cap bearing the name of the ship or the (part of) the navy to which they belong. 

  • A tally shop. 

  • A notch, mark, or score made on or in a tally; as, to make or earn a score or tally in a game. 

  • One thing made to suit another; a match; a mate. 

  • Any account or score kept by notches or marks, whether on wood or paper, or in a book, especially one kept in duplicate. 

  • One of two books, sheets of paper, etc., on which corresponding accounts were kept. 

verb
  • To count something. 

  • To make things correspond or agree with each other. 

  • To mathematically calculate a numeric result. 

  • To keep score. 

  • To correspond or agree. 

  • To record something by making marks. 

  • To check off, as parcels of freight going inboard or outboard. 

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