Question: What was the population of the suburb in which Port Melbourne railway station is located as of the 2011 Census?

full_context: Document 1: National Railway Museum, Port Adelaide: The National Railway Museum, Port Adelaide, South Australia, is Australia's largest railway museum with over 100 exhibits on display, primarily from the Commonwealth and South Australian Railways. First opening its doors in 1970, the Museum moved to its larger and current premises in 1988.
Document 2: Port Melbourne railway line: The Port Melbourne railway line is a former railway line in Melbourne, Australia. The line was the first significant railway in Australia, and was opened by the Melbourne and Hobson's Bay Railway Company, to carry passengers arriving in Victoria at Station Pier, and to alleviate the high cost of shipping goods using small vessels up the Yarra River to Melbourne.
Document 3: South Melbourne, Victoria: South Melbourne is an inner suburb of Melbourne, Australia, 2 km south of Melbourne's Central Business District (CBD). It is in the local government area of the City of Port Phillip. At the 2011 Census, South Melbourne had a population of 9,317.
Document 4: Southbank, Victoria: Southbank is an inner urban neighbourhood of Melbourne, Victoria, Australia, 1 km south of Melbourne's central business district. Its local government area are the Cities of Melbourne and Port Phillip. At the 2011 Census, Southbank had a population of 11,235. Its northernmost area is considered part of the Central Business District and Central Activities District of the City. Southbank is bordered to the north by the Yarra River, and to the east by St Kilda Road. Southbank's southern and western borders are bounded by Dorcas Street, Kings Way, the West Gate Freeway and Montague Street.
Document 5: Port Melbourne railway station: Port Melbourne is a railway station in the Melbourne suburb of the same name located on the former Port Melbourne line, the first significant railway in Australia.
Document 6: St Kilda, Victoria: St Kilda is an inner suburb (neighbourhood) of the metropolitan area of Melbourne, Victoria, Australia, 6 km south-east of Melbourne's Central Business District. Its local government area is the City of Port Phillip. At the 2011 Census, St Kilda had a population of 17,795.
Document 7: Port Melbourne, Victoria: Port Melbourne is an inner suburb of Melbourne, Australia, 5 km south-west from Melbourne's Central Business District. It is split between the local government areas of Melbourne and Port Phillip. The area to the north of the West Gate Freeway is in the City of Melbourne. The area to the south is in the City of Port Phillip. At the 2011 Census, Port Melbourne had a population of 14,521.
Document 8: Albert Park, Victoria: Albert Park is an inner suburb of Melbourne, Australia, 3 km south of Melbourne's central business district. Its local government area is the City of Port Phillip. At the 2011 census , Albert Park had a population of 5,955.
Document 9: Werribee railway station: Werribee railway station is located on the Port Fairy line in Victoria, Australia, and serves the western Melbourne suburb of Werribee. It was opened on 25 June 1857, by the Geelong and Melbourne Railway Company, as part of the railway line between the two cities. It also currently serves as the terminus of the suburban electrified Werribee line.
Document 10: Graham railway station: Graham was a railway station, now converted to light rail, on the former Port Melbourne railway line, in the inner Melbourne suburb of Port Melbourne, Victoria, Australia. Located to the north of Graham Street, between Evans Street and Station Street, the station has been demolished since 1987, and is now served by route 109 trams, stopping at a pair of low level platforms.
Document 11: Southbank, Victoria: Southbank is an inner urban neighbourhood of Melbourne, Victoria, Australia, 1 km south of Melbourne's central business district. Its local government area are the Cities of Melbourne and Port Phillip. At the 2011 Census, Southbank had a population of 11,235. Its northernmost area is considered part of the Central Business District and Central Activities District of the City. Southbank is bordered to the north by the Yarra River, and to the east by St Kilda Road. Southbank's southern and western borders are bounded by Dorcas Street, Kings Way, the West Gate Freeway and Montague Street.
Document 12: Docklands, Victoria: Docklands (also known as Melbourne Docklands to differentiate it from London Docklands) is an inner-western suburb of Melbourne, Victoria, Australia, 2 km (1.2 mi) from Melbourne's Central Business District. Its local government area is the City of Melbourne. At the 2016 Census, Docklands had a population of 10,964.
Document 13: Port Melbourne, Victoria: Port Melbourne is an inner suburb of Melbourne, Australia, 5 km south-west from Melbourne's Central Business District. It is split between the local government areas of Melbourne and Port Phillip. The area to the north of the West Gate Freeway is in the City of Melbourne. The area to the south is in the City of Port Phillip. At the 2011 Census, Port Melbourne had a population of 14,521.
Document 14: Montague railway station: Montague was a railway station, now converted to light rail, on the former Port Melbourne railway line in the inner Melbourne suburb of South Melbourne, Australia. The station was located to the south of Montague Street road underpass, between Woodgate Street and Gladstone Lane, with a large goods shed located on the Melbourne side of the station. The station has since been demolished and is now served by route 109 trams stopping at a pair of low level platforms.
Document 15: North Melbourne railway station: North Melbourne railway station is located on the northern edge of the central business district of Melbourne, Australia. The station is a major interchange point with the Craigieburn, Flemington Racecourse, Sunbury, Upfield, Werribee and Williamstown lines all servicing the station. It opened on 6 October 1859. It is listed on the Victorian Heritage Register.
ground_truth: 14,521