Question: What is the population within the city limits of the city where the company Sibur is headquartered ?

Context articles: List of North American cities by population
Moscow
Government Street (Mobile, Alabama)
List of Nigerian cities by population
Rome
Springfield metropolitan area, Missouri
Wenatchee, Washington
Vienna
Sibur
Jacksonville, Florida

For the majority of cities in North America, the most recent official population census results, estimates or short-term projections date to 2015.
 This list compiles figures for all North American cities with a population within city limits exceeding 500,000 that year.
 These figures do not reflect the population of the urban agglomeration or metropolitan area which typically do not coincide with the administrative boundaries of the city.
 They refer to mid-2015 populations with the following exceptions:
Moscow ( or ; Russian: Москва́ , "Moskva"; ] ) is the capital and most populous city of Russia, with 13.2 million residents within the city limits and 17.1 million within the urban area.
 Moscow has the status of a Russian federal city.
Government Street is the name given to portions of U.S. Route 90 and U.S. Route 98 within the city limits of Mobile, Alabama.
 It is known as Government Street east of Pinehill Drive and as Government Boulevard west of Pinehill Drive.
 It is the most important road on Mobile's far south side and is the only nominally east–west road on Mobile's south side to come into the city from outside the western city limits and reach the downtown business district.
 The only other two east–west thoroughfares in the city to do so are Moffett Road/Springhill Avenue and Old Shell Road.
 Government is a four-lane highway throughout the city limits, from Water Street to the western city limits.
 It is the only thoroughfare in Mobile to have intersections with both Interstate 10 and Interstate 65 within the city limits.
The following are lists of the most populous fully defined incorporated settlements in Nigeria by population.
 This page consists three different tables, with different kinds of settlements; a list for "defined cities", listing the population, strictly within the defined city limits, a list for "urban area" population, and another list for the population within metropolitan areas.
Rome ( ; Italian: "Roma" ] , Latin: "Rōma" ) is the capital of Italy and a special comune (named "Comune di Roma Capitale").
 Rome also serves as the capital of the Lazio region.
 With 2,877,215 residents in 1285 km2 , it is also the country's most populated comune.
 It is the fourth-most populous city in the European Union by population within city limits.
 It is the center of the Metropolitan City of Rome, which has a population of 4.3 million residents.
 Rome is located in the central-western portion of the Italian Peninsula, within Lazio (Latium), along the shores of the Tiber.
 The Vatican City is an independent country inside the city boundaries of Rome, the only existing example of a country within a city: for this reason Rome has been often defined as capital of two states.
The Springfield-Branson, Missouri Combined Metropolitan Area, as defined by the United States Census Bureau, is an area consisting of seven counties in southwestern Missouri, anchored by the city of Springfield - the state's third largest city.
 Other primary population centers in the metro area include Branson, Nixa, Ozark, Republic, Marshfield, Bolivar, and Willard.
 Currently, the city limits of Springfield reach the Ozark City limits at the Christian County line on US 65, the city limits of Republic at James River Freeway on the southwest side of the city, and the Strafford city limits on Route 744 on the northeast side of the city.
 As of the 2010 census, the MSA had a population of 520,589, though the 2015 Estimates place the population at 541,991.
Wenatchee ( ) is a city located in north-central Washington and is the largest city and county seat of Chelan County, Washington, United States.
 The population within the city limits in 2010 was 31,925.
 In 2014, the Office of Financial Management estimated the population at 33,070.
 Located at the confluence of the Columbia and Wenatchee rivers near the eastern foothills of the Cascade Range, Wenatchee lies on the western side of the Columbia River, across from the city of East Wenatchee.
 The Columbia River forms the boundary between Chelan and Douglas County.
 Wenatchee is the principal city of the Wenatchee–East Wenatchee, Washington Metropolitan Statistical Area, which encompasses all of Chelan and Douglas counties (total population around 110,884).
 However, the 'Wenatchee Valley Area' generally refers to the land between Rocky Reach and Rock Island Dam on both banks of the Columbia, which includes East Wenatchee, Rock Island, and Malaga.
Vienna ( ; German: "Wien" , ] ) is the capital and largest city of Austria and one of the nine states of Austria.
 Vienna is Austria's primary city, with a population of about 1.8 million (2.6 million within the metropolitan area, nearly one third of Austria's population), and its cultural, economic, and political centre.
 It is the 7th-largest city by population within city limits in the European Union.
 Until the beginning of the 20th century, it was the largest German-speaking city in the world, and before the splitting of the Austro-Hungarian Empire in World War I, the city had 2 million inhabitants.
 Today, it has the second largest number of German speakers after Berlin.
 Vienna is host to many major international organizations, including the United Nations and OPEC.
 The city is located in the eastern part of Austria and is close to the borders of the Czech Republic, Slovakia, and Hungary.
 These regions work together in a European Centrope border region.
 Along with nearby Bratislava, Vienna forms a metropolitan region with 3 million inhabitants.
 In 2001, the city centre was designated a UNESCO World Heritage Site.
 In July 2017 it was moved to the list of World Heritage in Danger.
SIBUR (PJSC SIBUR Holding) is a Russian gas processing and petrochemicals company headquartered in Moscow.
 SIBUR operates 26 production sites located all over Russia, had over 1,400 major customers engaged in the energy, automotive, construction, fast-moving consumer goods (FMCG), chemical and other industries in approximately 70 countries worldwide and employed around 28,000 personnel.
 In 2016, its revenue was RR 411.8 bln and Edjusted EBITDA RR 149.2 bln.
Jacksonville is the largest city by population in the U.S. state of Florida, and the largest city by area in the contiguous United States.
 It is the county seat of Duval County, with which the city government consolidated in 1968.
 Consolidation gave Jacksonville its great size and placed most of its metropolitan population within the city limits; with an estimated population of 913,010 as of 2017, Jacksonville is the most populous city in the state of Florida and the southeastern United States.
 The Jacksonville metropolitan area has a population of 1,626,611.
 It is the 34th largest MSA in the United States and fourth largest in Florida.