From 1975 to 1985, corruption and data fiddling became common practice among bureaucracy to report satisfied targets and quotas thus entrenching the crisis. Starting in 1986, Mikhail Gorbachev attempted to address economic problems by moving towards a market-oriented socialist economy. Gorbachev's policies of Perestroika failed to rejuvenate the Soviet economy; instead, a process of political and economic disintegration culminated in the breakup of the Soviet Union in 1991.