The 19 seat members of the Parliament of Nauru are elected through the Dowdall System, a decimalised modification of a preferential Borda count. The voter must rank all candidates in order of preference (see preferential voting). Each vote is then counted using the formula 1/n, according to ranking order. For example, a candidate ranked first receives one point, the second candidate receives half a point, the third candidate receives a third of a point, and so on. Each legal vote is aggregated in order to determine a decimal score for each candidate. For example, in the Nauruan parliamentary election, June 2010 the then president Marcus Stephen regained his Anetan Constituency seat after receiving 349.617 decimal votes from a total of 630 votes.