Question: What percent of people in the country where Andrey Gavrilov lives use Russian as their main language?

full_context: Document 1: Russian language: Ethnic Russians constitute 25.5% of the country's current population and 58.6% of the native Estonian population is also able to speak Russian. In all, 67.8% of Estonia's population can speak Russian. Command of Russian language, however, is rapidly decreasing among younger Estonians (primarily being replaced by the command of English). For example, if 53% of ethnic Estonians between 15 and 19 claim to speak some Russian, then among the 10- to 14-year-old group, command of Russian has fallen to 19% (which is about one-third the percentage of those who claim to have command of English in the same age group).
Document 2: Russian language: In the 20th century, Russian was mandatorily taught in the schools of the members of the old Warsaw Pact and in other countries that used to be satellites of the USSR. In particular, these countries include Poland, Bulgaria, the Czech Republic, Slovakia, Hungary, Albania, former East Germany and Cuba. However, younger generations are usually not fluent in it, because Russian is no longer mandatory in the school system. According to the Eurobarometer 2005 survey, though, fluency in Russian remains fairly high (20–40%) in some countries, in particular those where the people speak a Slavic language and thereby have an edge in learning Russian (namely, Poland, Czech Republic, Slovakia, and Bulgaria).
Document 3: Nicolae Butacu: Nicolae Butacu (born 15 July 1974) is a retired freestyle and backstroke swimmer from Romania, who represented his native country at the 1996 Summer Olympics in Atlanta, Georgia. He is best known for winning two silver medals at the 1996 European SC Championships in Rostock.
Document 4: Russian language: Significant Russian-speaking groups also exist in Western Europe. These have been fed by several waves of immigrants since the beginning of the 20th century, each with its own flavor of language. The United Kingdom, Spain, Portugal, France, Italy, Belgium, Greece, Brazil, Norway, and Austria have significant Russian-speaking communities. According to the 2011 Census of Ireland, there were 21,639 people in the nation who use Russian as a home language. However, of this only 13% were Russian nationals. 20% held Irish citizenship, while 27% and 14% were holding the passports of Latvia and Lithuania respectively.
Document 5: Andraž Vehovar: He won a silver medal in the K1 event at the 1996 Summer Olympics in Atlanta. Vehovar's efforts earned him the Slovenian Sportsman of the year award in 1996.
Document 6: Yevgeniya Yermakova: Yevgeniya Yermakova (born April 9, 1976 in Almaty, Kazakhstan) is a retired female freestyle swimmer from Kazakhstan. She competed in two consecutive Summer Olympics, starting in 1992 (Barcelona, Spain) for the Unified Team.
Document 7: Russian language: In Georgia Russian has no official status, but it's recognised as a minority language under the Framework Convention for the Protection of National Minorities. According to estimates from Demoskop Weekly, in 2004 there were 130,000 native speakers of Russian in the country, and 1.7 million active speakers. 27% of the population was fluent in Russian in 2006, and 1% used it as the main language with family, friends or at work. Russian is the language of 9% of the population according to the World Factook. Ethnologue cites Russian as the country's de facto working language.
Document 8: Russian language: In Ukraine, Russian is seen as a language of inter-ethnic communication, and a minority language, under the 1996 Constitution of Ukraine. According to estimates from Demoskop Weekly, in 2004 there were 14,400,000 native speakers of Russian in the country, and 29 million active speakers. 65% of the population was fluent in Russian in 2006, and 38% used it as the main language with family, friends or at work. Russian is spoken by 29.6% of the population according to a 2001 estimate from the World Factbook. 20% of school students receive their education primarily in Russian.
Document 9: Russian language: In Kazakhstan Russian is not a state language, but according to article 7 of the Constitution of Kazakhstan its usage enjoys equal status to that of the Kazakh language in state and local administration. According to estimates from Demoskop Weekly, in 2004 there were 4,200,000 native speakers of Russian in the country, and 10 million active speakers. 63% of the population was fluent in Russian in 2006, and 46% used it as the main language with family, friends or at work. According to a 2001 estimate from the World Factbook, 95% of the population can speak Russian. Large Russian-speaking communities still exist in northern Kazakhstan, and ethnic Russians comprise 25.6% of Kazakhstan's population. The 2009 census reported that 10,309,500 people, or 84.8% of the population aged 15 and above, could read and write well in Russian, as well as understand the spoken language.
Document 10: Károly Güttler: Károly Güttler (born 15 June 1968 in Budapest) is a former breaststroker from Hungary, who represented his native country at four consecutive Olympics, beginning with the 1988 Summer Olympics in Seoul and ending with the 2000 Summer Olympics in Sydney, Australia. He won the silver medal in the 100 m and 200 m breaststroke, once each, both at separate Games.
Document 11: Andrey Gavrilov: Andrey Gavrilov (; born May 4, 1974) is a retired male butterfly swimmer from Kazakhstan. He competed in two consecutive Summer Olympics for his native country, starting in 1996 (Atlanta, Georgia). His best Olympic result was finishing in 15th place at the 1996 Summer Olympics in the Men's 4 × 100 m Medley Relay event.
Document 12: Russian language: According to figures published in 2006 in the journal "Demoskop Weekly" research deputy director of Research Center for Sociological Research of the Ministry of Education and Science (Russia) Arefyev A. L., the Russian language is gradually losing its position in the world in general, and in Russia in particular. In 2012, A. L. Arefyev published a new study "Russian language at the turn of the 20th-21st centuries", in which he confirmed his conclusion about the trend of further weakening of the Russian language in all regions of the world (findings published in 2013 in the journal "Demoskop Weekly"). In the countries of the former Soviet Union the Russian language is gradually being replaced by local languages. Currently the number speakers of Russian language in the world depends on the number of Russians in the world (as the main sources distribution Russian language) and total population Russia (where Russian is an official language).
Document 13: Russian language: In Armenia Russian has no official status, but it's recognised as a minority language under the Framework Convention for the Protection of National Minorities. According to estimates from Demoskop Weekly, in 2004 there were 15,000 native speakers of Russian in the country, and 1 million active speakers. 30% of the population was fluent in Russian in 2006, and 2% used it as the main language with family, friends or at work. Russian is spoken by 1.4% of the population according to a 2009 estimate from the World Factbook.
Document 14: Elman Asgarov: Asgarov qualified for Azerbaijan in the men's 66 kg class at the 2004 Summer Olympics in Athens by placing second behind Armenia's Zhirayr Hovhannisyan from the second Olympic Qualification Tournament in Sofia, Bulgaria. He was placed by a random draw into a three-man preliminary pool against United States' Jamill Kelly and Moldova's two-time Olympian Ruslan Bodişteanu. Asgarov outclassed his first opponent Bodisteanu (7–3) at the start of the pool, before he was narrowly beaten by Kelly (2–3) in his subsequent match to generate a record of nine technical points, finishing only in second place and twelfth overall in the final standings.
Document 15: Sergey Borisenko: Sergey Borisenko (; born May 28, 1971) is a retired male freestyle swimmer from Kazakhstan. He competed in two consecutive Summer Olympics for his native country, starting in 1996 (Atlanta, Georgia). His best Olympic result was finishing in 21st place at the 2000 Summer Olympics in the Men's 4 × 100 m Freestyle Relay event, alongside Andrey Kvasov, Pavel Sidorov, and Igor Sitnikov.
ground_truth: 46%
sub_queries: In which country did Andrey Gavrilov live? Answer: Kazakhstan
What percent of people in Kazakhstan use Russian as their main language? Answer: 46%