The Socialist Party entered government in 1963. During the first year of the new centre-left government, a wide range of measures were carried out which went some way towards the Socialist Party's requirements for governing in coalition with the Christian Democrats. These included taxation of real estate profits and of share dividends (designed to curb speculation), increases in pensions for various categories of workers, a law on school organisation (to provide for a unified secondary school with compulsory attendance up to the age of 14), the nationalisation of the electric-power industry, and significant wage rises for workers (including those in the newly nationalised electric-power industry), which led to a rise in consumer demand. Urged on by the PSI, the government also made brave attempts to tackle issues relating to welfare services, hospitals, the agrarian structure, urban development, education, and overall planning. For instance, during the Centre-Left Government's time in office, social security was extended to previously uncovered categories of the population. In addition, entrance to university by examination was abolished in 1965. Despite these important reforms, however, the reformist drive was soon lost, and the most important problems (including the mafia, social inequalities, inefficient state/social services, North/South imbalance) remained largely untackled.