Spain has a constitutional monarchy form of government with King Juan Carlos I as the head of state since 1975. A national referendum in 1978 established Spain's transition to democracy. The executive branch is led by the President of Government, currently Mariano Rajoy. Spain has a bicameral parliamentary system. Spain is a descentralised country made up of 17 autonomous communities, 2 foral administrations (Basque Country and Navarra), and 50 provinces. The autonomous communities have their own elected governments and budgets to administer areas like health and education.