- Invalid votes: The number of invalid votes, as reported by each country.
- Registered voter turnout: The proportion of registered voters who actually voted.
- Total vote: The total number of votes cast in the relevant election. Total vote includes valid and invalid votes, as well as blank votes in cases where these are separated from invalid votes. More information on valid, invalid and blank votes can be found at aceproject.org
- Voter registration: The number of registered voters. The figure represents the number of names on the voters' register at the time that the registration process closes, as reported by the electoral management body.