Question: The largest city in Uzbekistan hosted the World Sambo Championships in what year?

Context paragraphs:
2011 World Sambo Championships: The 35th 2011 World Sambo Championships were held in Vilnius, Lithuania on November 11 to 13 for men's and women's sport Sambo and the Combat Sambo championships was held in Siemens Arena.

Samad Rustamov: Samad Rustamov is a Uzbekistani Combat Sambo fighter who competed in the 2008 World Sambo Championship and placed 5th, losing to the eventual champion Blagoi Ivanov.  He also won the silver medal at the 2006 World Sambo Championships.

1991 World Sambo Championships: The 1991 World Sambo Championships were held in two places because from wanning FIAS was separated new sambo organisation FMS.  FIAS World Sambo Championships were held in Montreal, Quebec, Canada and FMS World Sambo Championships were held in Chambéry, France on December.

Stefan Janos: Stefan Janos (born Janosch Stefan) is a German Sambo and Judo practitioner who won the Silver Medal at the 2008 World Sambo Championships, in Men's Combat Sambo.  Janosch defeated Pedro Brett (Venezuela), Volodimir Begeza (Ukraine), and Arsen Khachatryan (Armenia) without giving up a point before falling to eventual champion Blagoi Ivanov (Bulgaria) in the final.  Janosch has also competed in many grappling competitions, and recently began a career in mixed martial arts.

2010 World Sambo Championships: The 2010 World Sambo Championships was held in Tashkent, Uzbekistan between 4 and 8 November 2010.

Jan Trussell: Jan Trussell is a former competitor in judo, freestyle wrestling and sambo.  She won the US National Championships in sambo.  Trussell also won the US National Championship in judo.  She is a multiple time winner in the World Sambo Championships.

2013 World Sambo Championships: The 2013 World Sambo Championships was held in Saint Petersberg, Russia between the 21 and 25 November 2013.  This tournament included competition in both Sambo, and Combat Sambo.

2006 World Sambo Championships: The 2006 World Sambo Championships were held in Sofia, Bulgaria on November 3 to 5 for men's and women's Sambo, and the 2006 Combat Sambo championships were held in Tashkent, Uzbekistan on September 30 to October 2

Tashkent: Tashkent ( ; Uzbek: "Toshkent" , "Тошкент", تاشكېنت, ] ; Russian: Ташкент , ] ; literally "Stone City") is the capital and largest city of Uzbekistan.  The officially registered population of the city in 2012 was about 2,309,300.

World Sambo Championships: World Sambo Championships is the main Sambo and Combat Sambo championships in the world, organized by the Fédération Internationale de Sambo (FIAS).

Supporting paragraphs: 2010 World Sambo Championships Tashkent
Answer: 2010