The current Constitution of Bolivia (; literally, the Political Constitution of the State) came into effect on 7 February 2009 when it was promulgated by President Evo Morales, after being approved in a referendum with 90.24% participation. The referendum was held on 25 January 2009, with the constitution being approved by 61.43% of voters. It is the 17th constitution in the country's history; previous constitutions were enacted in 1826, 1831, 1834, 1839, 1843, 1851, 1861, 1868, 1871, 1878, 1880, 1938, 1945, 1947, 1961, and 1967. The 2009 Constitution defines Bolivia as a unitary plurinational, and secular (rather than a Catholic, as before) state, formally known as the Plurinational State of Bolivia. It calls for a mixed economy of state, private, and communal ownership; restricts private land ownership to a maximum of 5,000 hectares (12,400 acres); and recognizes a variety of autonomies at the local and departmental level. It elevates the electoral authorities to become a fourth constitutional power; introduces the possibility of recall elections for all elected officials; and enlarges the Senate. Members of the enlarged National Congress will be elected by first past the post voting in the future, in a change from the previous mixed member proportional system. The judiciary is reformed, and judges will be elected in the future and no longer appointed by the National Congress. It declares natural resources to be the exclusive dominion of the Bolivian people, administered by the state. Sucre will be acknowledged as Bolivia's capital, but the institutions will remain where they are (executive and legislative in La Paz, judiciary in Sucre). The electoral authorities will be situated in Sucre. Drafting process The Bolivian Gas War preceded the drafting process. The Gas War centered on the controversial decision of the National Revolutionary Movement (MNR) party to export Bolivian natural gas through Chilean ports which had been taken by Chile in the Pacific War of the 1870s. The Gas War came to a head in October 2003 with violent protest throughout the country from various social actors, leaving at least 70 dead. The then President Gonzalo Sánchez de Lozada ('Goni') resigned and fled to the US. Goni was succeeded by Vice President Carlos Mesa who was forced to step down amid further widespread protest in El Alto, La Paz and Cochabamba in June 2005. This led to the selection of judge Eduardo Rodríguez as head of a caretaker government which provided setting