Question: Named People's Artist of the USSR in 1966, what year did she later leave the country?

Context paragraphs:
Elena Rostropovich: Elena Rostropovich is a pianist who was born in Moscow, Russia on June 22, 1958.  She left Russia with her parents, cellist and conductor Mstislav Rostropovich and soprano Galina Vishnevskaya in 1974.

Grigori Kozintsev: Grigori Mikhaylovich Kozintsev (Russian: Григо́рий Миха́йлович Ко́зинцев ; 22 March [O.S. 9 March] 1905 – 11 May 1973) was a Soviet theatre and film director.  He was named People's Artist of the USSR in 1964.  In 1965 he was a member of the jury at the 4th Moscow International Film Festival.  Two years later he was a member of the jury of the 5th Moscow International Film Festival.  In 1971 he was the President of the Jury at the 7th Moscow International Film Festival.

Ludmila Semenyaka: Ludmila Semenyaka (Russian: Людмила Семеняка, born 16 January 1952 ) is a Soviet ballerina, born in Leningrad.  She studied at the Vaganova School as a pupil of .  She joined the Kirov Ballet in 1970 and later the Bolshoi Ballet in 1972, where she was a prima ballerina.  She was named People's Artist of the USSR in 1986 and received the USSR State Prize.

Vladimir Basov: Vladimir Pavlovich Basov (Russian: Владимир Павлович Басов , 28 July 1923 – 17 September 1987) was a Soviet actor, film director and screenwriter.  Vladimir Basov was named People's Artist of the USSR in 1983.

Boris Alexandrovich Alexandrov: Boris Alexandrovich Alexandrov (Russian: Борис Александрович Александров , August 4, 1905 Bologoye – June 17, 1994 Moscow) was a Soviet Russian composer, and, from 1946 to 1986, the second head of the Alexandrov Ensemble which was founded by his father, Alexander Vasilyevich Alexandrov.  Alexandrov reached the rank of Major-General and was awarded the order of Hero of Socialist Labour, the Lenin Prize and the State Prize of the USSR, and named People's Artist of the USSR.  Music by Alexandrov is used for the Anthem of Transnistria.

Vardan Ajemian: Vardan Mkrtchi Ajemian (Armenian: Վարդան Մկրտչի Աճեմյանը , June 4, 1905, Van, Ottoman Empire – January 24, 1977, Yerevan, Soviet Armenia) was an Armenian theatrical director and actor.  He was named People's Artist of USSR in 1965 and Hero of Socialist Labour in 1975.

Yoqub Ahmedov: Yoqub Ahmedov (born January 3, 1938) is an Uzbek theater and film actor.  He was named People's Artist of the USSR in 1991.

Galina Vishnevskaya: Galina Pavlovna Vishnevskaya (née Ivanova, Russian: Гали́на Па́вловна Вишне́вская ; 25 October 192611 December 2012) was a Russian soprano opera singer and recitalist who was named a People's Artist of the USSR in 1966.  She was the wife of cellist Mstislav Rostropovich, and mother to their two daughters, Olga and Elena Rostropovich.

Erast Garin: Erast Pavlovich Garin (Russian: Эра́ст Па́влович Га́рин ; 10 November [O.S. 28 October] 1902 – 4 September 1980) was, together with Igor Ilyinsky and Sergey Martinson, one of the leading comic actors of Vsevolod Meyerhold's company and of the Soviet cinema.  He was named People's Artist of the USSR in 1977.

Valery Levental: Valery Yakovlevich Levental (Russian: Вале́рий Я́ковлевич Левента́ль ; 17 August 1938 – 8 June 2015) was a Russian theatrical scenic designer.  He was named People's Artist of the USSR and was a member-correspondent of the Academy of Art.

Supporting paragraphs: Galina Vishnevskaya Elena Rostropovich
Answer: 1974