Question: In what year did an English professional snooker player from Leicester win the China Open?

full_context: Document 1: UK Championship: The UK Championship, known as the Betway UK Championship for sponsorship reasons, is a professional men's ranking snooker tournament. It is the second biggest-ranking tournament, after the World Championship and is one of the Triple Crown events. Mark Selby is the reigning champion.
Document 2: China Open (snooker): The China Open is a professional snooker tournament. It is one of a number of ranking tournaments and began in 1997. The reigning champion is Mark Selby.
Document 3: Luca Brecel: Luca Brecel (born 8 March 1995 in Dilsen-Stokkem) is a Belgian professional snooker player. He won the European Under-19 title at the age of 14 and is the youngest player to play at the Crucible after qualifying for the 2012 World Championship aged 17. His first ranking event final came at the 2016 German Masters which he lost to Martin Gould. The following year, he became the first player from mainland Europe to win a ranking event, defeating Shaun Murphy in the final of the 2017 China Championship.
Document 4: Marco Fu: Marco Fu Ka-chun, MH, JP (, born 8 January 1978 in Hong Kong) is a professional snooker player from Hong Kong. He won the 2007 Grand Prix, beating Ronnie O'Sullivan in the final, and was the runner-up in the 2008 UK Championship and the 2011 Masters. He also won the 2013 Australian Goldfields Open and the 2016 Scottish Open and was runner-up in the 2013 German Masters and 2013 International Championship. In addition, Fu reached the semi-finals of the World Championship twice – in 2006 and in 2016. Fu's career high world ranking is fifth, achieved in 2017. As a prolific break-builder, Fu has compiled more than 450 century breaks in professional competition, including four maximum 147 breaks. He currently resides in London.
Document 5: Mark Selby: Mark Anthony Selby (born 19 June 1983) is an English professional snooker player from Leicester. He is the reigning World and UK snooker champion and is the current world number one.
Document 6: Ronnie O'Sullivan: Ronald Antonio "Ronnie" O'Sullivan, {'1': ", '2': ", '3': ", '4': "} (born 5 December 1975) is an English professional snooker and pool player. He is widely regarded as one of the greatest snooker players of all time. He is noted for his rapid playing style, mercurial temperament, and his ambivalent relationship with the sport, from which he has taken prolonged sabbaticals and repeatedly threatened to retire. O'Sullivan is based at the Legends Snooker Academy in Leytonstone, England, United Kingdom.
Document 7: Shaun Murphy (snooker player): Shaun Murphy (born 10 August 1982) is an English professional snooker player, who won the 2005 World Championship. Nicknamed "The Magician", Murphy is noted for his straight cue action and his long potting.
Document 8: FFB Open: The FFB Open was a pro-am minor-ranking snooker tournament, which was part of the Players Tour Championship. The tournament was only held in the 2011/2012 and 2012/2013 seasons. The event was split in two parts, with the first part taking place at the World Snooker Academy in Sheffield, England and the second part at the Event Forum in Fürstenfeldbruck, Germany. Mark Selby was the last champion.
Document 9: Snooker season 2012/2013: The 2012/2013 snooker season was a series of snooker tournaments played during 2012 and 2013. The season featured two new ranking events; the Wuxi Classic and the International Championship. The tour had a record five ranking events in China, and three new PTC events in Asia. The tour also visited Bulgaria for the first time in its history, and returned to Poland, Belgium and Australia. Before the start of the season World Snooker requested every player to sign a players contract, that would allow players to choose which events they want to enter – no player was forced to play in any event. At the end of the season Mark Selby was named the "World Snooker Player of the Year", the "Snooker Writers' Player of the Year" and the "Fans' Player of the Year" and Ian Burns the "Rookie of the Year". Ronnie O'Sullivan received the "Performance of the Year" for winning his fifth World title after playing just one competitive match during the season. Jimmy Robertson's 57 break in just 130 seconds at the Snooker Shoot-Out received the "Magic Moment of the Year" award. Terry Griffiths, Joe Johnson, Peter Ebdon, Ken Doherty, Graeme Dott, Shaun Murphy and Neil Robertson were inducted into the Hall of Fame.
Document 10: Snooker season 2013/2014: The 2013/2014 snooker season was a series of snooker tournaments played between 6 June 2013 and 5 May 2014. From this season every qualifying match was held open to the public at various venues in the United Kingdom, replacing the World Snooker Academy in Sheffield. The number of wild-card players at the Chinese ranking events, except the Shanghai Masters, was reduced from eight to four and former Main Tour players were excluded. A professional player could not be selected for more than one wild-card match during the season.
Document 11: WGC-HSBC Champions: The WGC-HSBC Champions is a professional golf tournament, held annually in China. Inaugurated in 2005, the first seven editions were played at the Sheshan Golf Club in Shanghai, then moved to the Mission Hills Golf Club in Shenzhen in for a single year in 2012. It returned to Sheshan Golf Club in 2013.
Document 12: World Open (snooker): The World Open is a professional ranking snooker tournament. It had previously been known as the "Professional Players Tournament", the "LG Cup" and the "Grand Prix". During 2006 and 2007, it was played in a unique round-robin format, more similar to association football and rugby tournaments than the knock-out systems usually played in snooker. The knock-out format returned in 2008 with an FA Cup-style draw. The random draw was abandoned after the 2010 edition. Ding Junhui was the defending champion.
Document 13: Scottish Open (snooker): The Scottish Open is a ranking professional snooker tournament held in Scotland. The tournament had many name changes in its history, as the tournament was formerly called International Open, Goya Matchroom Trophy and Players Championship. Apart from a hiatus in the 1990/1991 and 1991/1992 seasons, the tournament remained a ranking event until 2003/2004. In the 2012/2013 season the tournament was added back to the calendar as part of the Players Tour Championship minor-ranking series. The last champion was Marco Fu.
Document 14: Six-red World Championship: The Six-red World Championship (also known as the SangSom 6 Red World Championship for sponsorship purposes) is a six-red snooker tournament, played with the six <dfn id="">colour balls</dfn> and six <dfn id=">reds</dfn> . Mark Williams is the reigning champion.
Document 15: Judd Trump: Judd Trump (born 20 August 1989) is an English professional snooker player from Bristol and former world number one. He enjoyed considerable success in youth tournaments before turning professional in 2005. On 3 April 2011, Trump won his first ranking title, beating Mark Selby 10–8 in the final of the China Open. Following this success in China, he reached the final of the 2011 World Snooker Championship where he was defeated by John Higgins. He then went on to win the 2011 UK Championship where he defeated Mark Allen 10–8 in the final.
ground_truth: 1997