A major revision in the public pension system in 1986 unified several former plans into the single Employee Pension Insurance Plan. In addition to merging the former plans, the 1986 reform attempted to reduce benefits to hold down increases in worker contribution rates. It also established the right of women who did not work outside the home to pension benefits of their own, not only as a dependent of a worker. Everyone aged between twenty and sixty was a compulsory member of this Employee Pension Insurance Plan.