The mayor of Paris is elected indirectly by Paris voters; the voters of each of the city's 20 arrondissements elect members to the ''Conseil de Paris'' (Council of Paris), which subsequently elects the mayor. The council is composed of 163 members, with each arrondissement allocated a number of seats dependent upon its population, from 10 members for each of the least-populated arrondissements (1st through 9th) to 34 members for the most populated (the 15th). The council is elected using closed list proportional representation in a two-round system.  Party lists winning an absolute majority in the first round – or at least a plurality in the second round – automatically win half the seats of an arrondissement.  The remaining half of seats are distributed proportionally to all lists which win at least 5% of the vote using the highest averages method.  This ensures that the winning party or coalition always wins a majority of the seats, even if they don't win an absolute majority of the vote.