Question: What was the 2011 population of the unitary authority area that includes the village Eastoft?

full_context: Document 1: Brigg: Brigg () is a small market town in North Lincolnshire, England, with a population of 5,076 in 2,213 households (2001 UK census), the population increasing to 5,626 at the 2011 census. The town lies at the junction of the River Ancholme and east–west transport routes across northern Lincolnshire. As a formerly important local centre, the town's full name of Glanford Brigg is reflected in the surrounding area and local government district of the same name. The town's urban area includes the neighbouring hamlet of Scawby Brook.
Document 2: Croft, Lincolnshire: Croft is a small village and civil parish in the East Lindsey district of Lincolnshire, England. The village is situated approximately 2 mi north-east from Wainfleet, and 4 mi south-west from Skegness.
Document 3: Eastoft: Eastoft is a village and civil parish in North Lincolnshire, England. It is situated within the Isle of Axholme, 3 mi north-east from Crowle, and on the A161 road.
Document 4: East Stockwith: East Stockwith is a village within the civil parish of East Stockwith, in the West Lindsey district of Lincolnshire, England. It lies on the River Trent, 3 mi north-west of Gainsborough. The River Trent Aegir, a tidal bore, reaches the village. In 2001 it had a total resident population of 209, increasing to 314 at the 2011 census.
Document 5: North East Lincolnshire: North East Lincolnshire is a unitary authority area in the Yorkshire and the Humber region of England, bordering the unitary authority of North Lincolnshire and the non-metropolitan county of Lincolnshire. The population of the Unitary Authority at the 2011 Census was 159,616. These three administrative units make up the ceremonial county of Lincolnshire.
Document 6: Barton-upon-Humber: Barton-upon-Humber or Barton is a town and civil parish in North Lincolnshire, England. The population at the 2011 census was 11,066. It is situated on the south bank of the Humber Estuary at the southern end of the Humber Bridge. It is 46 mi east of Leeds, 6 mi south-west of Hull and 31 mi north north-east of the county town of Lincoln. Other nearby towns include Scunthorpe to the south-west and Grimsby to the south-east.
Document 7: Scunthorpe railway station: Scunthorpe railway station serves the town of Scunthorpe in North Lincolnshire, England. The station is located a short walk from the town centre, on Station Road.
Document 8: Besthorpe, Nottinghamshire: Besthorpe is a small village in north-east Nottinghamshire close to the border with Lincolnshire. It is a Civil Parish in the Newark & Sherwood district of Nottinghamshire. The population of the civil parish as of the 2011 census is 195. The village is on the A1133 between Newark and Gainsborough, and is 1.5 miles north of the larger village of Collingham, North East of Newark on Trent. The village lies 1 mile east of the River Trent and the River Fleet flows South to East parallel with the village & A1133. Besthorpe acquired Conservation Village status in 2006 because it has maintained much of its original layout focused on Low Road and the Green.
Document 9: Langtoft, Lincolnshire: Langtoft is a village and civil parish in the South Kesteven district of Lincolnshire, England. The population of the civil parish at the 2011 census was 2,045. It lies on the A15 road, about 10 mi north from Peterborough and about 8 mi east from Stamford, and on the edge of The Fens.
Document 10: North Lincolnshire: North Lincolnshire is a unitary authority area in the region of Yorkshire and the Humber in England. The population of the Unitary Authority at the 2011 census was 167,446. For ceremonial purposes it is part of Lincolnshire. There are three significant towns: Scunthorpe (the administrative centre), Brigg and Barton-upon-Humber.
Document 11: North East Lincolnshire Council: North East Lincolnshire Council is the local authority of North East Lincolnshire. It is a unitary authority, having the powers of a non-metropolitan county and district council combined. It provides a full range of local government services including Council Tax billing, libraries, social services, processing planning applications, waste collection and disposal, and it is a local education authority.
Document 12: Crowle, Lincolnshire: Crowle is a small town and civil parish on the Isle of Axholme in North Lincolnshire, England. The appropriate civil parish is called Crowle and Ealand with a population at the 2011 census of 4,828. It lies on the Stainforth and Keadby Canal and has a railway station. The town includes its suburb of Windsor.
Document 13: Yorkshire and the Humber: Yorkshire and the Humber is one of nine official regions of England at the first level of NUTS for statistical purposes. It comprises most of Yorkshire (South Yorkshire, West Yorkshire, the East Riding of Yorkshire including Hull, the shire county of North Yorkshire and the City of York), North Lincolnshire and North East Lincolnshire. It does not include Middlesbrough or Redcar and Cleveland (which are in the ceremonial county of North Yorkshire but not in the shire county). The population in 2011 was 5,284,000.
Document 14: Horkstow: Horkstow is a village and civil parish in North Lincolnshire, England, 4 mi south-west from Barton-Upon-Humber, 1 mi south from South Ferriby and 9 mi north from Brigg. It lies on the B1204, and 1 mi east from the navigable River Ancholme. It is one of the five "Low Villages" - Worlaby, Bonby, Saxby All Saints, Horkstow and South Ferriby - between Brigg and the River Humber, so-called because of their position below the northern edge of the Lincolnshire Wolds. Horkstow was previously part of South Humberside administrative district, and before that, the North Lindsey division of Lindsey, Lincolnshire.
Document 15: Easton, Lincolnshire: Easton is a village and civil parish in the South Kesteven district of Lincolnshire, England. It is situated almost 2 mi north from Colsterworth, and 1 mi east from the A1 road. It is in the civil parish of Stoke Rochford.
ground_truth: 167,446