Question: The Dutch-Belgian television series that "House of Anubis" was based on first aired in what year?

full_context: Document 1: The 'Bu (TV show): The 'Bu is a 2003 award-winning television series from Channel 101's short film contest, it mocks the soap opera television genre and satirized life in Malibu, California (hence the reference to "the 'bu" as a slang name for Malibu) and has seven finished episodes, with an eighth episode "apology" also submitted after the creators ended the show. It was created by The Lonely Island, it stars Andy Samberg, Jorma Taccone and Sarah Chalke, and was directed by Akiva Schaffer. The group's website references the show as "vintage" and cites it as an example of their early work. Three more episodes were filmed after the original cast abandoned the series, bringing the total number of episodes to 11 but it was cancelled in April 2005.
Document 2: Aruba: The Tragic Untold Story of Natalee Holloway and Corruption in Paradise: Aruba: The Tragic Untold Story of Natalee Holloway and Corruption in Paradise
Document 3: A Series of Unfortunate Events (TV series): Lemony Snicket's A Series of Unfortunate Events, or simply A Series of Unfortunate Events, is an American black comedy-drama television series from Netflix, and developed by Mark Hudis and Barry Sonnenfeld, based on the children's novel series of the same name by Lemony Snicket. It stars Neil Patrick Harris, Patrick Warburton, Malina Weissman, Louis Hynes, K. Todd Freeman and Presley Smith.
Document 4: House of Anubis: House of Anubis is a mystery television series developed for Nickelodeon based on the Dutch-Belgian television series "Het Huis Anubis". The series was created by Hans Bourlon and Gert Verhulst and premiered on Nickelodeon on 1 January 2011 in the United States and on 25 February 2011 in the United Kingdom. The series is the first series from the network to be filmed outside the United States and the first telenovela-format series for the network. The show aired from 1 January 2011 to 17 June 2013.
Document 5: Het Huis Anubis: Het Huis Anubis ("The House of Anubis") is a Belgian-Dutch children's television drama created by Studio 100 and Nickelodeon, airing in the Netherlands and Flanders. It first aired in September 2006 and the last episode was broadcast on December 4, 2009. The show was a huge success in the Benelux, despite the show's low budget for the first two seasons.
Document 6: Nickelodeon Animation Studio: Nickelodeon Animation Studio, also known in Burbank as Nickelodeon Studios Burbank, is an American animation studio owned and operated by Viacom through its television network Nickelodeon. The studio produces many of the network's most popular animated series, including "SpongeBob SquarePants", "The Fairly OddParents", "Teenage Mutant Ninja Turtles", "Harvey Beaks", "The Loud House", "Bunsen Is a Beast", and "Welcome to the Wayne". It also produces programs for Nicktoons Network, Nick at Nite, TeenNick, and Nick Jr. as well.
Document 7: Schalkse Ruiters: Schalkse Ruiters, translated as "Roguish Horsemen", was a very successful show aired on the Flemish TV channel Eén. The motto of the show is: do not believe what you see on TV. During the show, three documentaries are presented. The viewers vote whether the documentaries are real or fake. Anno 2012 the show still got the Belgian record of most viewers, dating from an episode sent out in 1997. The show won almost every Belgian television award.
Document 8: Scooby-Doo! Mystery Incorporated: Scooby-Doo! Mystery Incorporated (also known as Mystery Incorporated or Scooby-Doo! Mystery, Inc.) is an American animated mystery comedy-drama series; the series serves as the eleventh incarnation of the "Scooby-Doo" media franchise created by Hanna-Barbera, as well as the first that was not originally run on Saturday mornings. The series is produced by Warner Bros. Animation and Cartoon Network UK and premiered in the United States on Cartoon Network on April 5, 2010, with the next twelve episodes continuing, and the first episode re-airing, on July 12, 2010. The series concluded on April 5, 2013 after two seasons and fifty-two episodes.
Document 9: Witse: Witse is a Dutch language crime drama produced by Belgian broadcaster VRT and broadcast on their één channel. It is also shown on BVN. It was first broadcast in 2004 and was popular enough to run for nine seasons, with the final one airing in 2012. It starred Hubert Damen as the eponymous Witse, a driven inspector in the Belgian federal police based in Halle. It was one of the most popular Flemish television programmes with some 1.6 million viewers.
Document 10: In de mix: In de mix is a Belgian Flemish television series launched in 2012 and hosted by Moroccan-Belgian R&B singer Brahim Attaeb known as Brahim. The program brings in two artists from pop and hip hop traditions, in an attempt to make via remakes and covers of well-known earlier hits, new crossover hits that fusions between various genres of music. The inaugural season of the program was broadcast on Eén Belgian Flemish station. It is an adaptation of original series of shows done on Dutch television station TROS and hosted by fellow Moroccan-Dutch artist Ali B and entitled "Ali B op volle toeren". There is also a German adaptation on VOX called "Cover My Song" and hosted by Dennis Lisk.
Document 11: Are You Afraid of the Dark?: Are You Afraid of the Dark? is a Canadian American horror fantasy-themed anthology television series. The original series was created by D.J. MacHale and Ned Kandel, and was picked up by Nickelodeon in 1991. MacHale, Kandel, and Nickelodeon teamed up with the Canadian company Cinar, and as a part of the deal the show was filmed in Richmond, British Columbia and in the Greater Montreal area of Quebec, including their suburbs.
Document 12: List of House of Anubis episodes: This article is an episode list for "House of Anubis", a mystery/comedy-drama television series broadcast on Nickelodeon.
Document 13: XIII: The Series: XIII: The Series is an English-language Franco-Canadian TV series that premiered in April 2011 in France and Canada. Loosely based on the Belgian graphic novel series created by Jean Van Hamme and William Vance debuting in 1984, about an amnesiac protagonist who seeks to discover his concealed past. The TV series follows the events of the 2008 TV film "", which was also produced by Prodigy Pictures and Cipango. The first season follows the plot in parallel with the existing volumes in the comic series, while the second season diverts into an all-new original story arc.
Document 14: Das Haus Anubis: Das Haus Anubis is a television program produced jointly by Belgian broadcaster Studio 100 and Nickelodeon and the first remake of Het Huis Anubis aired in The Netherlands and Belgium. Another English remake called House of Anubis aired in 2011. With a seven-figure production budget, it is one of Nickelodeon's largest in-house productions, and the first German daily soap opera specifically aimed at older children. From 29 September 2009 to 4 May 2012, the show had been running both on children's channel Nick (daily at 7:40pm, and repeated in the afternoon and at weekends), and season 1 on music channel VIVA.
Document 15: Marcella (TV series): Marcella is a British crime noir detective series produced, written and directed by Hans Rosenfeldt, a Swedish screenwriter and creator of the series "The Bridge" (adapted as "The Tunnel" for British audiences). The series began airing on ITV from 4 April 2016. Episodes are available on Netflix worldwide outside the UK and Ireland after it airs on ITV. On 26 August 2016, ITV announced that a second series had been commissioned, scheduled to premiere in 2017, with Hans Rosenfeldt and Anna Friel returning.
ground_truth: 2006