... election officials don't know exactly how many advance Riksdag ballots have been cast, but there were around 100,000 in the last election in 2006.

Currently, the Alliance coalition needs 7,100 more votes to attain an overall majority of votes cast. If the centre-right would receive, say, 60,000 of around 100,000 outstanding uncounted ballots, then they would have an overall majority in the number of votes.