in 1979, though with regard to the provinces the system is unchanged since 1977. Senators are elected directly from the provinces and indirectly from the autonomous communities; currently, there are 264 senators, 208 directly elected and 56 indirectly elected. In the provinces, a majoritarian partial block voting system is used. All peninsular provinces elect four senators each; the insular provinces (Balearic and Canary Islands) elect one or three senators per island, and Ceuta and Melilla elect two senators each. Parties nominate three candidates; each voter has three votes (fewer in those constituencies electing fewer senators) and votes for candidates by name, the only instance of personal voting in Spanish national elections. The usual outcome is three senators for the party with the most votes, and one senator for the runner-up, except in very close races. The autonomous communities receive one senator, plus one for each million inhabitants. They are entitled to determine how they choose their senators but are generally elected by the legislature of the respective community in proportion to its party composition. Election results 1977–2019 Regional elections 1983 Spanish regional elections 1987 Spanish regional elections 1991 Spanish regional elections 1995 Spanish regional elections 1999 Spanish regional elections 2003 Spanish regional elections 2007 Spanish regional elections 2011 Spanish regional elections 2015 Spanish regional elections 2019 Spanish regional elections 2020 Spanish regional elections Elections to the unicameral parliaments of the autonomous communities of Spain are held every four years. Twelve of the seventeen autonomous parliaments (Aragon, Asturias, Balearic Islands, Canary Islands, Cantabria, Castile and León, Castilla–La Mancha, Extremadura, La Rioja, Madrid, Murcia and Navarre) take place the same day, the fourth Sunday of May of the year before a leap year; the last election was held on 26 May 2019. The other five communities (considered "historical nationalities" within the country of Spain) can choose the date of their regional elections independently. The last elections held in these communities were in Andalusia in December 2018; Valencian Community in April 2019 (for the first time separated from the rest of regional elections, although at the same date that the snap General Election for that year); Basque Country and Galicia in July 2020; and Catalonia in February 2021. Local elections 1979 Spanish local elections 1983 Spanish local elections 1987 Spanish local elections 1991 Spanish local elections 1995 Spanish local elections 1999 Spanish local elections 2003 Spanish local elections 2007 Spanish local elections 2011