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 and his wife holidayed in Moscow, Leningrad, Uzbekistan, and resorts in the North Caucusus; he holidayed with the head of the KGB, Yuri Andropov, who was favourable towards him, as well as with the Soviet Prime Minister, Alexei Kosygin, with whom he also established a good relationship. The government considered Gorbachev sufficiently reliable that he was sent as part of Soviet delegations to Western Europe; he made five trips there between 1970 and 1977. In September 1971 he was part of a delegation who travelled to Italy, where they met with representatives of the Italian Communist Party; Gorbachev loved Italian