Mikhail Gorbachev major campaign to limit alcohol consumption, which Gorbachev—who believed it would improve health and work efficiency—oversaw. His wife keenly supported the measure. As a result, crime rates fell and life expectancy grew slightly between 1986 and 1987. The reform had significant costs to the Soviet economy, resulting in losses of up to $100 billion between 1985 and 1990. Gorbachev later considered the campaign to have been an error. In April 1986 the Chernobyl disaster occurred; in the immediate aftermath, officials fed Gorbachev incorrect information to downplay the incident. As the scale of the disaster became apparent, 336,000 people were evacuated
Mikhail Gorbachev the government. Shortly afterward, the Supreme Soviet suspended all Party activities on Soviet territory. In effect, Communist rule in the Soviet Union had ended. Gorbachev's hopes of a new Union were further hit when the Congress of People's Deputies dissolved itself on 5 September. Though Gorbachev and the representatives of eight republics (excluding Azerbaijan, Georgia, Moldova, Ukraine, Lithuania, Latvia and Estonia) signed an agreement on forming a new economic community on 18 October, events were overtaking him. The Soviet Union collapsed with dramatic speed during the latter part of 1991, as one republic after another declared independence. By the autumn,